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1

Discrimination of prey species of juvenile swordfish Xiphias gladius (Linnaeus, 1758) using signature fatty acid analyses  

NASA Astrophysics Data System (ADS)

Signature lipid and fatty acid analysis were used to discriminate the diet of swordfish ( Xiphias gladius, orbital fork length: 60-203 cm) from waters off eastern Australia. The fatty acid (FA) composition of a range of known prey (squid, myctophids, and other fishes) of swordfish, taken from stomach samples and from net tows, was compared with that of the white muscle tissue (WMT) of swordfish from the same region. Swordfish muscle was lipid rich (average 24-42% dry weight), as was the skeleton (28-41%). The robustness of the approach was also tested by comparison against a key squid prey species that was collected and stored using different protocols: (i) fresh frozen, (ii) fresh frozen, then thawed, and (iii) stomach content collection. The FA profiles were generally similar, with the ratio of docosahexaenoic acid (DHA) and palmitic acid (16:0) in particular showing no significant difference. Major fatty acids in swordfish WMT were 18:1?9c, 16:0, 22:6?3, and 18:0. Multidimensional scaling showed that the swordfish WMT grouped closely with small fish prey including myctophids, and not with squid. Squid contained markedly higher 22:6?3 than swordfish. Individual prey species of the myctophidae could also be separated by the same technique. These results were supported by traditional stomach content analyses (SCA) that showed fish were the dominant prey for small swordfish sampled from southern waters whereas squid were the main prey in more northern waters, matching the FA patterns we found for the two regions. We propose that where general diet patterns are established, signature FA analysis has good potential to compliment or in some cases, replace temporal and spatial monitoring of trophic pathways for swordfish and other marine species.

Young, Jock W.; Guest, Michaela A.; Lansdell, Matt; Phleger, Charles F.; Nichols, Peter D.

2010-07-01

2

[Total mercury in muscle of the shark Prionace glauca (Linnaeus, 1758) and swordfish Xiphias gladius Linnaeus, 1758, from the South-Southeast coast of Brazil and the implications for public health].  

PubMed

Total mercury (THg) was analyzed in muscle tissue from the blue shark Prionace glauca and the swordfish Xiphias gladius, obtained from the South and Southeast coast of Brazil, to verify compliance with current limits for human consumption. Samples were obtained through the REVIZEE Program and a commercial fishery in Itajaí, Santa Catarina State. A total of 95 specimens were analyzed (48 X. gladius and 47 P. glauca), and correlations were checked between THg and fish length and weight. THg ranged from 0.13 to 2.26 microgg-1 (fresh weight), and there was no significant difference between the means for P. glauca, 0.76 +/- 0.48 microgg-1 (f.w.) and X. gladius, 0.62 +/- 0.31 (Mann-Whitney test, p < 0.05). In 16 % of samples, THg was above the limits set by the National Health Surveillance Agency (ANVISA), namely 1 microgg-1, and 62% exceeded the World Health Organization (WHO) limit of 0.5 microgg-1. The ingestion of 100 g/ day-1 of P. glauca or X. gladius would result in a daily THg intake of more than twice the WHO (1990) suggested limit. PMID:18813682

Dias, Adriana C L; Guimarães, Jean R D; Malm, Olaf; Costa, Paulo A S

2008-09-01

3

Global population structure of the swordfish ( Xiphias gladius L.) as revealed by analysis of the mitochondrial DNA control region  

Microsoft Academic Search

The global population structure of the swordfish (Xiphias gladius L.) was examined by analyzing the DNA sequence variation contained within the hypervariable left domain of the mitochondrial control region of 247 individuals. A total of 330 base pairs (bp) of sequence from 112 individuals collected in the Pacific (n = 26), the Atlantic (n = 47) and the Mediterranean (n

Jaime R. Alvarado Bremer; Jaime Mejuto; Thomas W. Greig; Bert Ely

1996-01-01

4

Polychlorinated biphenyls and DDT in swordfish (Xiphias gladius) and blue shark (Prionace glauca) from Brazilian coast.  

PubMed

The polychlorinated biphenyls (PCBs) and DDT may bioaccumulate in the aquatic food web and have been of great concern due to their toxic effects on wildlife and human health. There is evidence showing that fish in the human diet contributes at a significant proportion to the total intake of PCBs and other organochlorine compounds, particularly fish with higher fat levels. This study investigated the concentration of PCBs and DDTs in muscle tissues of samples of the blue shark (Prionace glauca) and a swordfish (Xiphias gladius) from east Brazilian coast and estimate the human exposure to total DDTs through the consumption of both the species. Samples of the each species were caught between August and September 2001. The mean concentration for summation operator PCBs in P. glauca was 3.15 ng/g w.w. and the summation operator DDTs was 0.93 ng/g w.w. The mean concentration of summation operator PCBs in X. gladius was 6.50 ng/g and the mean of summation operator DDTs was 2.47 ng/g. The estimated daily intake of summation operator DDT through X. gladius or P. glauca consumption can be considered safe since it contributes to less than 0.1% of the limit of acceptable daily intake (ADI) of summation operator DDT proposed by WHO. PMID:17223179

de Azevedo e Silva, Claudio Eduardo; Azeredo, Antonio; Lailson-Brito, José; Torres, João Paulo Machado; Malm, Olaf

2007-04-01

5

SIZE-WEIGHT RELATIONSHIPS OF THE SWORDFISH (Xiphias gladius) AND SEVERAL PELAGIC SHARK SPECIES CAUGHT IN THE SPANISH SURFACE LONGLINE FISHERY IN THE ATLANTIC, INDIAN AND PACIFIC OCEANS  

Microsoft Academic Search

SUMMARY A total of 5096 observations of the standard size-dressed weight of different species were carried out by scientific observers on board Spanish longline fishing vessels primarily targeting the swordfish (Xiphias gladius) in different oceans. As a consequence of this activity, large pelagic shark species (Prionace glauca, Isurus oxyrhinchus, Carcharhinus falciformis, Carcharhinus longimanus, Alopias superciliosus, Sphyrna lewini, Sphyrna zygaena, etc.)

B. García-Cortés; J. Mejuto

6

Multi-Genetic Marker Approach and Spatio-Temporal Analysis Suggest There Is a Single Panmictic Population of Swordfish Xiphias gladius in the Indian Ocean  

PubMed Central

Genetic population structure of swordfish Xiphias gladius was examined based on 2231 individual samples, collected mainly between 2009 and 2010, among three major sampling areas within the Indian Ocean (IO; twelve distinct sites), Atlantic (two sites) and Pacific (one site) Oceans using analysis of nineteen microsatellite loci (n?=?2146) and mitochondrial ND2 sequences (n?=?2001) data. Sample collection was stratified in time and space in order to investigate the stability of the genetic structure observed with a special focus on the South West Indian Ocean. Significant AMOVA variance was observed for both markers indicating genetic population subdivision was present between oceans. Overall value of F-statistics for ND2 sequences confirmed that Atlantic and Indian Oceans swordfish represent two distinct genetic stocks. Indo-Pacific differentiation was also significant but lower than that observed between Atlantic and Indian Oceans. However, microsatellite F-statistics failed to reveal structure even at the inter-oceanic scale, indicating that resolving power of our microsatellite loci was insufficient for detecting population subdivision. At the scale of the Indian Ocean, results obtained from both markers are consistent with swordfish belonging to a single unique panmictic population. Analyses partitioned by sampling area, season, or sex also failed to identify any clear structure within this ocean. Such large spatial and temporal homogeneity of genetic structure, observed for such a large highly mobile pelagic species, suggests as satisfactory to consider swordfish as a single panmictic population in the Indian Ocean. PMID:23717447

Muths, Delphine; Le Couls, Sarah; Evano, Hugues; Grewe, Peter; Bourjea, Jerome

2013-01-01

7

AbstractAge and growth of the swordfish (Xiphias gladius) in Taiwan  

E-print Network

under a dissecting microscope equipped with an image analysis system. Trends in the monthly mar ginal) estimated the swordfish is generally distributed from growth of swordfish caught in the Asia to the Americas metric tons (99%) to the by drift gillnet vessels off Baja Califor total swordfish landings from Taiwan

8

An oceanographic characterization of swordfish (Xiphias gladius) longline fishing grounds in the springtime subtropical North Pacific  

Microsoft Academic Search

During January-May, surface manifestation of multi- ple, individual basin-scale fronts accentuate the cen- tral North Pacific Subtropical Frontal Zone (STFZ) system. The most prominent of these fronts are cli- matologically located at 32? )34? N and at 28? )30? N latitudes (herein nominally referred to as the 'Sub- tropical Front' (STF) and the 'South Subtropical Front' (SSTF), respectively), although considerable

Michael P. Seki; Jeffrey J. Polovina; Donald R. Kobayashi; Robert R. Bidigare; Gary T. Mitchum

2002-01-01

9

Polychlorinated biphenyls and DDT in swordfish ( Xiphias gladius) and blue shark ( Prionace glauca) from Brazilian coast  

Microsoft Academic Search

The polychlorinated biphenyls (PCBs) and DDT may bioaccumulate in the aquatic food web and have been of great concern due to their toxic effects on wildlife and human health. There is evidence showing that fish in the human diet contributes at a significant proportion to the total intake of PCBs and other organochlorine compounds, particularly fish with higher fat levels.

Claudio Eduardo de Azevedo e Silva; Antonio Azeredo; José Lailson-Brito; João Paulo Machado Torres; Olaf Malm

2007-01-01

10

Hydrodynamic Characteristics of the Sailfish (Istiophorus platypterus) and Swordfish (Xiphias gladius) in Gliding Postures at Their Cruise Speeds  

PubMed Central

The sailfish and swordfish are known as the fastest sea animals, reaching their maximum speeds of around 100 km/h. In the present study, we investigate the hydrodynamic characteristics of these fishes in their cruise speeds of about 1 body length per second. We install a taxidermy specimen of each fish in a wind tunnel, and measure the drag on its body and boundary-layer velocity above its body surface at the Reynolds number corresponding to its cruising condition. The drag coefficients of the sailfish and swordfish based on the free-stream velocity and their wetted areas are measured to be 0.0075 and 0.0091, respectively, at their cruising conditions. These drag coefficients are very low and comparable to those of tuna and pike and smaller than those of dogfish and small-size trout. On the other hand, the long bill is one of the most distinguished features of these fishes from other fishes, and we study its role on the ability of drag modification. The drag on the fish without the bill or with an artificially-made shorter one is slightly smaller than that with the original bill, indicating that the bill itself does not contribute to any drag reduction at its cruise speed. From the velocity measurement near the body surface, we find that at the cruise speed flow separation does not occur over the whole body even without the bill, and the boundary layer flow is affected only at the anterior part of the body by the bill. PMID:24312547

Sagong, Woong; Jeon, Woo-Pyung; Choi, Haecheon

2013-01-01

11

Assessing fishing policies for northeastern Brazil  

Microsoft Academic Search

This study is a first contribution towards the development of ecosystem-based fisheries management in northeastern Brazil, through the exploration of fishing policies based on a trophic model (Ecopath with Ecosim). Our simulations for 1978-2028 indicated that current fishing effort is completely unsustainable for lobsters (Panulirus argus (Latreille, 1804) and Panulirus laevicauda (Latreille, 1817)) and swordfish (Xiphias gladius Linnaeus, 1758). The

KÁTIA M. F. FREIRE; VILLY CHRISTENSEN; DANIEL PAULY

2007-01-01

12

Overlooked bycatch mitigation opportunities in pelagic longline fisheries: Soak time and temperature effects on swordfish ( Xiphias gladius) and blue shark ( Prionace glauca) catch  

Microsoft Academic Search

Bycatch mitigation approaches aim to either reduce the incidence of unwanted catch or reduce bycatch mortalities. In pelagic longline fisheries incidence of unwanted catch can be reduced by limiting the availability of baited hooks (e.g., within bycatch species’ preferred depths and water temperatures), whereas bycatch mortalities can be decreased by gear modifications and changes to fishing practices, e.g., by limiting

Erin H. Carruthers; John D. Neilson; Sean C. Smith

2011-01-01

13

Mercury and selenium in blue shark ( Prionace glauca, L. 1758) and swordfish ( Xiphias gladius, L. 1758) from two areas of the Atlantic Ocean  

Microsoft Academic Search

Muscle, liver and stomach contents of 64 blue sharks and 52 swordfishes, caught between September 2004 and February 2005 near the Azores (area A) and the Equator (area E), were analysed for mercury and selenium. Levels of mercury were relatively high (blue shark: 0.032–2.5?gg?1; swordfish: 0.031–9.8?gg?1) and comparable to values reported in the literature. However, mercury and organic mercury concentrations

Vasco Branco; Carlos Vale; João Canário; Miguel Neves dos Santos

2007-01-01

14

Mercury and selenium in blue shark (Prionace glauca, L. 1758) and swordfish (Xiphias gladius, L. 1758) from two areas of the Atlantic Ocean.  

PubMed

Muscle, liver and stomach contents of 64 blue sharks and 52 swordfishes, caught between September 2004 and February 2005 near the Azores (area A) and the Equator (area E), were analysed for mercury and selenium. Levels of mercury were relatively high (blue shark: 0.032-2.5microgg(-1); swordfish: 0.031-9.8microgg(-1)) and comparable to values reported in the literature. However, mercury and organic mercury concentrations in muscle and liver of specimens from E were significantly higher than those from A. A similar trend was registered in stomach contents, suggesting higher uptake of Hg in specimens from E. This difference was also observed in the relationship between concentration in muscle and size, indicating a higher accumulation rate in specimens from E. The accumulation of Se in the liver of both species showed a positive correlation with inorganic mercury concentrations, pointing to a detoxifying mechanism of organic mercury in these species through Se-Hg liasons. PMID:17376573

Branco, Vasco; Vale, Carlos; Canário, João; Santos, Miguel Neves Dos

2007-12-01

15

Vestigial phragmocone in the gladius points to a deepwater origin of squid (Mollusca: Cephalopoda)  

NASA Astrophysics Data System (ADS)

The microstructure of the gladius cone was investigated in six species of nektonic squid: shallow-water Loligo gahi (Loliginidae), pelagic eurybathic Illex argentinus, Todarodes pacificus, Dosidicus gigas (Ommastrephidae), and deepwater Onykia ingens (Onychoteuthidae) and Gonatus antarcticus (Gonatidae) using state-of-the-art microscopy. Apart from L. gahi, all other species had septa-like layers in the gladius cone, which for the first time were investigated in detail and compared with those in extinct Cretaceous belemnites Hibolithes sp. and Pachyteuthis sp., and spirulid Cyrtobelus sp. It was found that the organic layers of the gladius cone in recent squid can be homologized with the organic components of the shell in fossil phragmocone-bearing coleoids. The septa-like layers in modern gladius cones therefore represent a vestigial phragmocone composed of organic septal rudiments of the ancestral phragmocone that has lost the siphuncle and gas-filled chambers. The well-developed rostrum in onychoteuthids and small rostrum of the gladius in ommastrephids and gonatids can be seen as homologous with the belemnoid rostrum, which may indicate a close phylogenetic relationship between belemnites and at least some squid. Possible evolutionary pathways of the reduction of the functional phragmocone in squid ancestors are discussed. Several features such as the loss of shell calcification, deep water speciation, and the structure of the equilibrium organ point to a deep-water origin of squids.

Arkhipkin, Alexander I.; Bizikov, Vyacheslav A.; Fuchs, Dirk

2012-03-01

16

Linnaeus in Uppsala, Sweden.  

ERIC Educational Resources Information Center

Presents a brief life history of Carl Linnaeus, a professor of medicine and botany in Uppsala, Sweden. Highlights his work in developing a classification system for plants and animals, and his botanical lectures and demonstrations. (JRH)

Cohen, Paul; Cohen, Brenda

1997-01-01

17

Habitatnutzung und Nahrung der Feldheuschrecken Sphingonotus caerulans (Linnaeus, 1767) und Oedipoda caerulescens (Linnaeus,  

E-print Network

17 Habitatnutzung und Nahrung der Feldheuschrecken Sphingonotus caerulans (Linnaeus, 1767) und Oedipoda caerulescens (Linnaeus, 1758) (Caelifera, Acrididae) in zwei verschiedenen Zonationstypen im usage and food resources of the acridid species Sphingonotus caerulans (Linnaeus, 1767) and Oedipoda

Richner, Heinz

18

Sequential Isotopic Signature Along Gladius Highlights Contrasted Individual Foraging Strategies of Jumbo Squid (Dosidicus gigas)  

PubMed Central

Background Cephalopods play a major role in marine ecosystems, but knowledge of their feeding ecology is limited. In particular, intra- and inter-individual variations in their use of resources has not been adequatly explored, although there is growing evidence that individual organisms can vary considerably in the way they use their habitats and resources. Methodology/Principal Findings Using ?13C and ?15N values of serially sampled gladius (an archival tissue), we examined high resolution variations in the trophic niche of five large (>60 cm mantle length) jumbo squids (Dosidicus gigas) that were collected off the coast of Peru. We report the first evidence of large inter-individual differences in jumbo squid foraging strategies with no systematic increase of trophic level with size. Overall, gladius ?13C values indicated one or several migrations through the squid's lifetime (?8–9 months), during which ?15N values also fluctuated (range: 1 to 5‰). One individual showed an unexpected terminal 4.6‰ ?15N decrease (more than one trophic level), thus indicating a shift from higher- to lower-trophic level prey at that time. The data illustrate the high diversity of prey types and foraging histories of this species at the individual level. Conclusions/Significance The isotopic signature of gladii proved to be a powerful tool to depict high resolution and ontogenic variations in individual foraging strategies of squids, thus complementing traditional information offered by stomach content analysis and stable isotopes on metabolically active tissues. The observed differences in life history strategies highlight the high degree of plasticity of the jumbo squid and its high potential to adapt to environmental changes. PMID:21779391

Lorrain, Anne; Argüelles, Juan; Alegre, Ana; Bertrand, Arnaud; Munaron, Jean-Marie; Richard, Pierre; Cherel, Yves

2011-01-01

19

Assessment of the Contemporary Population Structure and Admixture of Atlantic Swordfish (Xiphias gladius L.) via Mixed Stock Analysis and Bayesian Clustering of Multiple Nuclear SNPS Genotyped through High Resolution Melting  

E-print Network

. ..................................................................... 29 Figure 5 An alignment of a segment of the zinc finger protein (ZnF) gene of blue marlin (Makaira nigricans), sailfish (Istiphorus platypterus), and Atlantic white marlin (Kajikia albida.... ..................................................................... 29 Figure 5 An alignment of a segment of the zinc finger protein (ZnF) gene of blue marlin (Makaira nigricans), sailfish (Istiphorus platypterus), and Atlantic white marlin (Kajikia albida...

Smith, Brad 1979-

2012-11-28

20

GADUS Linnaeus, 1758 (GADIFORMES: GADIDAE) -: 03.02.06  

E-print Network

GADUS Linnaeus, 1758 (GADIFORMES: GADIDAE) - , , : 03.02.06 ­ ­ 2014 #12 , G. morhua Linnaeus, 1758 G. macrocephalus Tilesius, 1810. 2 et al., 1990; Carr et al., 1999; Coulson et al., 2006): (Gadus morhua Linnaeus, 1758), (Gadus

Kaplan, Alexander

21

Introduction The skink Lacerta aurata was described by Linnaeus  

E-print Network

Introduction The skink Lacerta aurata was described by Linnaeus (1758)onthebasisoffiveearlierdescriptions(Aldrovandi 1637, Seba 1734, Linnaeus 1749, Gronovius 1754, Linnaeus 1754). In all, four extant museum syntypes of Lacerta aurata Linnaeus, 1758 housed in the collections of the Swedish Museum

22

Historical Demography and Genetic Population Structure of the Blackfin Tuna (Thunnus atlanticus) from the Northwest Atlantic Ocean and the Gulf of Mexico  

E-print Network

DNA CR has been characterized for several highly migratory pelagic fishes, including swordfish (Xiphias gladius), sailfish (Istiophorus platypterus), bluefin tuna (Thunnus thynnus), skipjack tuna, and yellowfin tuna (Farnham 2003; Alvarado Bremer et al... (Xiphias gladius) and sailfish (Istiophorus platypterus) all expanded at about 1.4 Ma (Alvarado Bremer et al. 2005b; Alvarado Bremer et al. 2005a; Ely et al. 2005; Bangma 2006) that also coincide with the population expansion of blackfin tuna reported...

Saxton, Brandon L.

2010-01-16

23

Linnaeus' herbarium cabinet: a piece of furniture and its function  

E-print Network

Linnaeus' herbarium cabinet: a piece of furniture and its function Staffan Mu¨ ller-Wille ESRC 4RJ The Swedish 18th-century naturalist Carolus (Carl) Linnaeus is habitually credited with laying innovation of Linnaeus' has largely gone unnoticed. He seems to have been one of the first botanists to leave

24

Homage to Linnaeus: How many parasites? How many hosts?  

E-print Network

Homage to Linnaeus: How many parasites? How many hosts? Andy Dobson* , Kevin D. Lafferty , Armand M of the total number of species that inhabit the Earth have increased significantly since Linnaeus's initial biodiversity The year 2008 marks the tercentenary of the birth of Linnaeus, the scientist who first provided

Utrecht, Universiteit

25

Linnaeus' Peloria: The history of a monster  

Microsoft Academic Search

The so-called Peloria case has been discussed repeatedly in world literature since the discovery of the five-spurred Linaria in 1742 and its description by Linnaeus in 1744. In 1742 a young Uppsala botanist found a peculiar specimen of the common toad-flax (now named Linaria vulgaris L.) on an island in the Stockholm archipelago. The plant, which had spread vegetatively, possessed

Å. Gustafsson

1979-01-01

26

Linnaeus' Peloria: The history of a monster.  

PubMed

The so-called Peloria case has been discussed repeatedly in world literature since the discovery of the five-spurred Linaria in 1742 and its description by Linnaeus in 1744. In 1742 a young Uppsala botanist found a peculiar specimen of the common toad-flax (now named Linaria vulgaris L.) on an island in the Stockholm archipelago. The plant, which had spread vegetatively, possessed five spurs instead of one spur, a characteristic of the common toad-flax. The material was presented to Linnaeus, who became quite excited. The finding was contrary to his concept that genera and species had universally arisen through an act of original creation and remained unchanged since then. In a famous thesis of 1744, Linnaeus called the deviating plant 'Peloria', Greek for 'monster'. The case of pelorism was discussed later on by a great number of famous writers and scientists including, for example, Goethe, Darwin, Naudin, De Vries and Stubbe. Parallel types were found in numerous species of other genera and families. Such aberrant forms are caused by spontaneous mutation. The history, mode of origin, morphology, inheritance and distribution of different Peloria mutants are discussed in the paper. PMID:24310481

Gustafsson, A

1979-11-01

27

LINNAEUS: BOOSTING NEAR EARTH ASTEROID CHARACTERIZATION RATES  

NASA Astrophysics Data System (ADS)

Near Earth objects (NEOs) are being discovered at a rate of about 1000 per year, and this rate is set to double by 2015. However, the physical characterization of NEOs is only ~100 per year for each type of follow-up observation. We have proposed the LINNAEUS program to NASA to raise the characterization rate of NEOs to the rate of their discovery. This rate matching is necessary as any given NEO is only available for a relatively short time (days to weeks), and they are usually fainter on subsequent apparitions. Hence follow-up observations must be initiated rapidly, without time to cherry-pick the optimum objects. LINNAEUS concentrates on NEO composition. Optical spectra, preferably extending into the near-infrared, provide compositions that can distinguish major compositional classes of NEOs with reasonable confidence (Bus and Binzel 2002, DeMeo et al. 2009). Armed with a taxonomic type the albedo, pV, of an NEO is better constrained, leading to more accurate sizes and masses. Time-resolved spectroscopy can give indications of period, axial ratio and surface homogeneity. A reasonable program of spectroscopy could keep pace with the NEO discovery rate. A ground-based telescope can observe faint NEOs about 210 nights a year, due to time lost due to weather, bright time, and equipment downtime (e.g. Gemini), for a total of ~2000 hours/year. At 1 hour per NEO spectrum, a well-run, dedicated, telescope could obtain almost 2000 spectra per year, about the rate required. If near-IR spectra are required then a 4 m or larger telescope is necessary to reach 20. However, if the Bus-Binzel taxomonmy suffices then only optical spectra are needed and a 2 meter class telescope is sufficient. LINNAEUS would use 50% of the KPNO 2.1 m telescope with an IFU spectrometer, the SED-machine (Ben-Ami et al. 2013), to obtain time-resolved optical spectra of 1200-2000 NEOs/year, or 4200-7000 in 3.5 years observing in an NEOO program. Robust pipeline analysis will release taxonomic types via the Minor Planet Center within 24 hours and a full archive of spectra and products will be provided.

Elvis, Martin; Beeson, C.; Galache, J.; DeMeo, F.; Evans, I.; Evans, J.; Konidaris, N.; Najita, J.; Allen, L.; Christensen, E.; Spahr, T.

2013-10-01

28

International Relations Office, Linnaeus University Information updated 2010-04-08  

E-print Network

International Relations Office, Linnaeus University Information updated 2010-04-08 Institutional Information 2010/2011 Full legal name of institution Linnaeus University/Linnéuniversitetet (S VAXJO03) Postal.Vinci-Hytter@lnu.se Fax: +46 470 837 85 E-mail: intrel@lnu.se #12;International Relations Office, Linnaeus University

Petriu, Emil M.

29

The Common Bream, Abramis brama (Linnaeus, 1758), is a cyprinid fish native to most of Europe  

E-print Network

The Common Bream, Abramis brama (Linnaeus, 1758), is a cyprinid fish native to most of Europe bream, Abramis brama (Linnaeus, 1758), introduced into the Iberian Peninsula. Eight individuals reservoir, Muga River. RESUMEN Se da la primera cita de la brema, Abramis brama (Linnaeus, 1758

García-Berthou, Emili

30

Human Lice: Body Louse, Pediculus humanus humanus Linnaeus and Head Louse, Pediculus humanus capitis De  

E-print Network

EENY-104 Human Lice: Body Louse, Pediculus humanus humanus Linnaeus and Head Louse, Pediculus humans: the body louse, Pediculus humanus humanus Linnaeus, also known as Pediculus humanus corporis (Linnaeus). Head lice and body lice are morphologically indistinguish- able, although head lice are smaller

Florida, University of

31

LINNAEUS: A species name identification system for biomedical literature  

PubMed Central

Background The task of recognizing and identifying species names in biomedical literature has recently been regarded as critical for a number of applications in text and data mining, including gene name recognition, species-specific document retrieval, and semantic enrichment of biomedical articles. Results In this paper we describe an open-source species name recognition and normalization software system, LINNAEUS, and evaluate its performance relative to several automatically generated biomedical corpora, as well as a novel corpus of full-text documents manually annotated for species mentions. LINNAEUS uses a dictionary-based approach (implemented as an efficient deterministic finite-state automaton) to identify species names and a set of heuristics to resolve ambiguous mentions. When compared against our manually annotated corpus, LINNAEUS performs with 94% recall and 97% precision at the mention level, and 98% recall and 90% precision at the document level. Our system successfully solves the problem of disambiguating uncertain species mentions, with 97% of all mentions in PubMed Central full-text documents resolved to unambiguous NCBI taxonomy identifiers. Conclusions LINNAEUS is an open source, stand-alone software system capable of recognizing and normalizing species name mentions with speed and accuracy, and can therefore be integrated into a range of bioinformatics and text-mining applications. The software and manually annotated corpus can be downloaded freely at http://linnaeus.sourceforge.net/. PMID:20149233

2010-01-01

32

Dive behaviour of adult hawksbills (Eretmochelys imbricata, Linnaeus 1766) in the eastern Pacific Ocean highlights shallow depth use by the species  

E-print Network

Dive behaviour of adult hawksbills (Eretmochelys imbricata, Linnaeus 1766) in the eastern Pacific, Linnaeus 1766) are a globally endangered marine turtle species, with populations in the eastern Pacific Circumglobally distributed, hawksbill marine turtles (Eretmochelys imbricata, Linnaeus 1766) are considered

Lewison, Rebecca

33

LINNAEUS: A species name identification system for biomedical literature  

Microsoft Academic Search

BACKGROUND: The task of recognizing and identifying species names in biomedical literature has recently been regarded as critical for a number of applications in text and data mining, including gene name recognition, species-specific document retrieval, and semantic enrichment of biomedical articles. RESULTS: In this paper we describe an open-source species name recognition and normalization software system, LINNAEUS, and evaluate its

Martin Gerner; Goran Nenadic; Casey M. Bergman

2010-01-01

34

Antioxidative activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus  

Microsoft Academic Search

Antioxidant activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus was evaluated. Polysaccharides were extracted with boiling water, followed by precipitating with ethanol, protein hydrolysis, dialysis, and fractionation with a DEAE–Sepharose CL-6B column. A total of 4 fractions, including 1 neutral polysaccharide (LBPN) and 3 acidic polysaccharides were obtained, and compared with crude polysaccharide (CP), crude extract of polysaccharide (CE),

C. L. Lin; C. C. Wang; S. C. Chang; B. Stephen Inbaraj; B. H. Chen

2009-01-01

35

Mortality and growth of juvenile coral Pocillopora damicornis (Linnaeus)  

Microsoft Academic Search

Early mortality in cohortsof the coral Pocillopora damicornis (Linnaeus) was monitored under experimental conditions on a reef in order to evaluate effects of sedimentation, grazing, predation and competition. Corals that settled in dishes in the laboratory were placed on the reef flat about 3 days after metamorphosis. Six different conditions were tested in each series of experiments: orientation of dishes

Mayumi Sato

1985-01-01

36

Biosystema 25 Linnaeus. Systmatique et biodiversit, pages 41-76. abstract. --Since his first works (for example the  

E-print Network

Biosystema 25 ­ Linnaeus. Systématique et biodiversité, pages 41-76. abstract. -- Since his first works (for example the Fundamenta Botanica from 1736), Linnaeus did present some « arbitrary rules of 18th and the beginning of 19th century, other botanists criticise Linnaeus'rules (for example Heister

Boyer, Edmond

37

Zur Morphologie des Zentralnervensystems von Erethizon dorsatum , Linnaeus (Rodentia, Hystricomorpha)  

Microsoft Academic Search

Das Gehirn von Erethizon dorsatum (E. dorsatum dorsatum, Linnaeus 1758) wird beschrieben. Es ergibt sich bei der Analyse von 6 Gehirnen aus der gleichen Subspecies eine starke Variabilität in der Form der Hemisphären. Der Quotient Hypothalamuslänge: Großhirnlänge schwankt zwischen 0,21 und 0,29 mit einem Durchschnittswert von 0,25 Für Hystrix cristata, hodgsoni und javanicus wurde ein Wert von 0,26 errechnet. Der

G. Pilleri

1960-01-01

38

Chromatographic determination of polysaccharides in Lycium barbarum Linnaeus  

Microsoft Academic Search

Polysaccharides in Lycium barbarum Linnaeus have been shown to be effective in preventing cancer. The objectives of this study were to develop an appropriate method for molecular weight determination of polysaccharides in L. barbarum. The most suitable analytical condition was: a volume-ratio of L. barbarum sample to deionized water at 1:10, followed by shaking in a 100°C water bath for

Chia Chi Wang; Shyh Chung Chang; Bing Huei Chen

2009-01-01

39

DAILY PATTERNS IN THE ACTIVITIES OF SWORDFISH, X/PH/AS GLAD/US, OBSERVED BY ACOUSTIC TELEMETRY  

E-print Network

DAILY PATTERNS IN THE ACTIVITIES OF SWORDFISH, X/PH/AS GLAD/US, OBSERVED BY ACOUSTIC TELEMETRY studied using acoustic telemetry. Five swordfish in the Pacific and one in the Atlantic were tagged aspects of their behavior can be readily examined by telemetry from attached sensors. Xiphias gladius

40

Mercury content in commercial pelagic fish and its risk assessment in the Western Indian  

E-print Network

is essential considering the concern about effects of contaminants on human health and the legal thresholds (Xiphias gladius) caught in waters surrounding Reunion Island (3.97 ± 2.67 µg.g-1 dry weight). Following, such as in good luck charms, to ward off evil, as material for ceremony objects (Egyptians), as colorant

Paris-Sud XI, Université de

41

Length-Weight Relation of the Summer Flounder Paralichthys dentatus (Linnaeus)  

E-print Network

31 Length-Weight Relation of the Summer Flounder Paralichthys dentatus (Linnaeus) by Fred E. Lux Length-Weight Relation of the Summer Flounder Paralichthys dentatus (Linnaeus) By FRED E. LUX and L. R differences 3 Literature cited 5 Appendix table 5 #12;#12;Length-Weight Relation of the Summer Flounder

42

[Metazoan parasites of carp (Cyprinus carpio Linnaeus, 1758) and vimba (Vimba vimba Linnaeus, 1758) in the Sapanca lake].  

PubMed

In this study metazoan parasites of carp (Cyprinus carpio Linnaeus, 1758) and vimba (Vimba vimba Linnaeus, 1758) in the Lake Sapanca were investigated from January 2004 to December 2004. A total of 31 fish were investigated. Out of the 16 C. carpio, 13 were infected by parasites and of the 15 V. vimba, 11. The parasites found in C. carpio were: Dactylogyrus phoxini (Malevitskaya, 1949), Dactylogyrus extensus (Müller, Van Cleave, 1932), Gyrodactylus sp. Monogenoidea, Caryophyllaeus laticeps (Pallas, 1781), Bothriocephalus acheilognathi (Rud, 1808) Cestoidea, Diplostomum sp. Trematoda, Glochidium sp. Bivalvia. The parasites found in V. vimba were: Dactylogyrus sphyrna (Linstow, 1878), Dactylogyrus cornu (Linstow, 1878), Dactylogyrus cornoides (Gläser et Gussev, 1971) Monogenoidea, Aspidogaster limacoides (Dies., 1835), Posthodiplostomum cuticola (Nordmann, 1832), Tylodelphys clavata (Nordmann, 1832), Diplostomum sp., Tetracotyle sp. (Linstow, 1856) Trematoda, Neoechinorhynchus rutili (Müller, 1780) Acanthocephala, Glochidium sp. Bivalvia, Argulus foliaceus (Linnaeus, 1758), Ergasilus sieboldi (Nordmann, 1832) Crustacea. The parasites were investigated according to the place they were found in the host, prevalence and intensity of infections in the fish. Also the average intensity of the infection as well as the minimum and maximum intensities was estimated. PMID:17124667

Uzunay, Ece; Soylu, Erhan

2006-01-01

43

Revision of the Hylaea fasciaria (Linnaeus, 1758) species group in the western Palaearctic (Lepidoptera: Geometridae, Ennominae).  

PubMed

The Palaearctic Hylaea fasciaria (Linnaeus, 1758) species group is revised (Lepidoptera: Geometridae, Ennominae). Four taxa are considered valid at species level: H. fasciaria (Linnaeus, 1758), H. pinicolaria (Bellier, 1861), H. compararia (Staudinger, 1894) and one new species, H. mediterranea, from Italy: Sicily, Calabria and Molise. The following taxonomic changes are proposed: Ellopia cedricola Wehrli, 1919, from Turkey is downgraded to subspecies of Hylaea fasciaria (Linnaeus, 1758) (revised status), Hylaea fasciaria cleui Leraut, 1993, from France is downgraded from subspecies to synonymy with H. fasciaria fasciaria (Linnaeus, 1758) (new synonymy) and Ellopia compararia Staudinger, 1894, from Algeria is raised from subspecies of Hylaea fasciaria (Linnaeus, 1758) to species status (revised status). Hemithea squalidaria O. G. Costa, 1848 from southern Italy was placed in the genus Hylaea, but it is reverted to its original combination as its taxonomic status is uncertain. Adults, male and female genitalia and distribution maps are illustrated for all species. DNA barcodes are presented for most taxa studied. PMID:24871188

Sihvonen, Pasi; Skou, Peder; Flamigni, Claudio; Fiumi, Gabriele; Hausmann, Axel

2014-01-01

44

Mortality and growth of juvenile coral Pocillopora damicornis (Linnaeus)  

NASA Astrophysics Data System (ADS)

Early mortality in cohortsof the coral Pocillopora damicornis (Linnaeus) was monitored under experimental conditions on a reef in order to evaluate effects of sedimentation, grazing, predation and competition. Corals that settled in dishes in the laboratory were placed on the reef flat about 3 days after metamorphosis. Six different conditions were tested in each series of experiments: orientation of dishes (upward, vertical and downward) by with and without protection against potential grazers by covering the dish with a net. Survival of juvenile corals on both protected and unprotected dishes facing upward was lower than in the vertical or downward direction. Under the vertical facing and protected conditions, algal growth was more intensive and algae trapped sediment; mortality of juvenile corals by algae and sedimentation increased gradually. In the uprotected and vertical conditions, algal growth on the surface was removed constantly by grazing invertebrates and fishes and the juvenile corals were removed or killed as well. On the downward facing dishes, survivorship of juveniles was relatively high in both protected and unprotected conditions. This habitat attracted many sessile animals that killed some juveniles by competition. Thus, juvenile corals survived better in experimentally manipulated microhabitats not affected by direct sedimentation, not exposed to direct grazing activity, and not occupied by rapidly growing filamentous algae.

Sato, Mayumi

1985-04-01

45

terminal segment of the intestine of Cyprinus carpio (Linnaeus, 1758)  

E-print Network

ABSTRACT. Considering the importance of the myenteric plexus in fishes and the scarcity of data about it, research was undertaken with the purpose of contributing to the characterization of the myenteric plexus in fishes. The terminal segments of intestines of ten adult Cyprinus carpio underwent routine techniques of transverse histological sections of 6 and 10µm in thickness, stained with Weigert-Van Gieson, as well as whole-mount preparations stained with the Giemsa method. The myenteric plexus composed of isolated neurons and ganglia containing groups of two or more neurons was analyzed. Percentages of small, medium and large neurons were 48.8%, 47.6 % and 3.6 % respectively. Neuronal density in 6.64mm 2 of intestinal segment was 5,099 ± 384.35. Key words: Cyprinus carpio, fish, intestine, myenteric plexus, neurons. RESUMO. Características morfoquantitativas dos neurônios mientéricos do segmento terminal do intestino de Cyprinus carpio (Linnaeus, 1758) (Osteichthyes, Cyprinidae). Considerando a importância do plexo mientérico e a escassez de dados sobre o mesmo em peixes, realizamos o presente trabalho, com a finalidade de contribuir com a caracterização do plexo mientérico nesses animais. Para tanto, o segmento terminal do

Ra Regina Stabille; Marcelo Aparecido De Lima; Ricardo De Melo Germano

46

Homage to Linnaeus: How many parasites? How many hosts?  

PubMed Central

Estimates of the total number of species that inhabit the Earth have increased significantly since Linnaeus's initial catalog of 20,000 species. The best recent estimates suggest that there are ?6 million species. More emphasis has been placed on counts of free-living species than on parasitic species. We rectify this by quantifying the numbers and proportion of parasitic species. We estimate that there are between 75,000 and 300,000 helminth species parasitizing the vertebrates. We have no credible way of estimating how many parasitic protozoa, fungi, bacteria, and viruses exist. We estimate that between 3% and 5% of parasitic helminths are threatened with extinction in the next 50 to 100 years. Because patterns of parasite diversity do not clearly map onto patterns of host diversity, we can make very little prediction about geographical patterns of threat to parasites. If the threats reflect those experienced by avian hosts, then we expect climate change to be a major threat to the relatively small proportion of parasite diversity that lives in the polar and temperate regions, whereas habitat destruction will be the major threat to tropical parasite diversity. Recent studies of food webs suggest that ?75% of the links in food webs involve a parasitic species; these links are vital for regulation of host abundance and potentially for reducing the impact of toxic pollutants. This implies that parasite extinctions may have unforeseen costs that impact the health and abundance of a large number of free-living species. PMID:18695218

Dobson, Andy; Lafferty, Kevin D.; Kuris, Armand M.; Hechinger, Ryan F.; Jetz, Walter

2008-01-01

47

A STUDY OF THE REPRODUCTIVE ORGAN'S OF THE COMMON MARINE SHRIMP, PENAEUS SETIFERUS (LINNAEUS)  

Microsoft Academic Search

In connection with the investigations of the common commercial shrimp, Penaeus setiferus (Linnaeus) , carried on by the U. S. Fish and Wildlife Service, studies have been made of the structure of the reproductive organs and accessory sex characters and the general nature of the reproductive process. This report gives information on the anatomy and histology of the male and

JOSEPH E. KING

48

Grammoplites vittatus (Valenciennes), (Scorpaeniformes, Platycephalidae), removed from synonymy with Grammoplites scaber (Linnaeus).  

PubMed

Grammoplites vittatus (Valenciennes), often previously overlooked by authors or regarded as a junior synonym of G. scaber (Linnaeus), is shown here to be a valid species.  It has more gill rakers (7-8) then G. scaber and G. knappi (usually 6) and a narrower interorbital width than G. scaber.  A key to the species of Grammoplites Fowler is  given.  PMID:25112262

Knapp, Leslie W; Imamura, Hisashi

2014-01-01

49

DESCRIPTION OF BLACK SEA BASS, CENTROPRISTIS STRIATA (LINNAEUS), LARVAE AND THEIR OCCURRENCES NORTH  

E-print Network

DESCRIPTION OF BLACK SEA BASS, CENTROPRISTIS STRIATA (LINNAEUS), LARVAE AND THEIR OCCURRENCES NORTH OF CAPE LOOKOUT, NORTH CAROLINA, IN 1966 ARTHUR W. KENDALL, JR.' ABSTRACf Larvae of black sea bass salinity from 30.3 to 34.67". Black sea bass are of considerable economic im- portance and occur along most

50

Ocorrência de Puma concolor (Linnaeus) (Felidae, Carnivora) em áreas de vegetação remanescente de Santa Catarina, Brasil  

Microsoft Academic Search

PRESENCE OF PUMA CONCOLOR (LINNAEUS) (FELIDAE, CARNIVORA) ON REMNANT HABITATS IN SANTA CATARINA, BRAZIL. Several reports on puma (Puma concolor) have been done in the State of Santa Catarina, Southern Brazil, most of them in remnant original habitats above 800 meters. These records show a thight relationship between the puma with the altitude and mostly with the habitat quality. In

Marcelo Mazzolli

1993-01-01

51

Report on survey for Oak Processionary Moth Thaumetopoea processionea (Linnaeus) (Lepidoptera  

E-print Network

................................................................................................ 11 Figure 3. Small Fastigiate Oaks at an infestation site in 2007. Tree centre right with feeding-mature trees, in both cases a form of Pedunculate Oak known as Cypress Oak (Quercus robur f. fastigiataReport on survey for Oak Processionary Moth Thaumetopoea processionea (Linnaeus) (Lepidoptera

52

The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus  

E-print Network

: A review of phylogenetic patterns and diversity 300 years after Linnaeus* MARYMEGAN DALY1, MERCER R. BRUGLER2, PAULYN CARTWRIGHT3, ALLEN G. COLLINS4, MICHAEL N. DAWSON5, DAPHNE G. FAUTIN3, SCOTT C. FRANCE2, CATHERINE S. MCFADDEN6, DENNIS M...

Daly, Marymegan; Brugler, Mercer R.; Cartwright, Paulyn; Collins, Allen G.; Dawson, Michael N.; Fautin, Daphne G.; France, Scott C.; McFadden, Catherine; Opresko, Dennis M.; Rodriguez, Estefania; Romano, Sandra L.; Stake, Joel L.

2007-12-21

53

Do Canada geese ( Branta canadensis Linnaeus, 1758) carry infectious agents for birds and man?  

Microsoft Academic Search

Currently, large groups of Canada geese ( Branta canadensis Linnaeus, 1758) aggregate in recreational areas of north-western Germany. Questions have arisen as to whether these birds represent a special risk factor as a source of zoonotic agents for humans and as a source of viruses, causing notifiable or reportable diseases, for domestic poultry and waterfowl. To answer these questions, a

Brigitte M. Bönner; Walburga Lutz; Sabine Jäger; T. Redmann; B. Reinhardt; U. Reichel; V. Krajewski; R. Weiss; J. Wissing; W. Knickmeier; W. H. Gerlich; Ulrike C. Wend; E. F. Kaleta

2004-01-01

54

Functional genomics of the horn fly, Haematobia irritans (Linnaeus, 1758)  

PubMed Central

Background The horn fly, Haematobia irritans (Linnaeus, 1758) (Diptera: Muscidae) is one of the most important ectoparasites of pastured cattle. Horn flies infestations reduce cattle weight gain and milk production. Additionally, horn flies are mechanical vectors of different pathogens that cause disease in cattle. The aim of this study was to conduct a functional genomics study in female horn flies using Expressed Sequence Tags (EST) analysis and RNA interference (RNAi). Results A cDNA library was made from whole abdominal tissues collected from partially fed adult female horn flies. High quality horn fly ESTs (2,160) were sequenced and assembled into 992 unigenes (178 contigs and 814 singlets) representing molecular functions such as serine proteases, cell metabolism, mitochondrial function, transcription and translation, transport, chromatin structure, vitellogenesis, cytoskeleton, DNA replication, cell response to stress and infection, cell proliferation and cell-cell interactions, intracellular trafficking and secretion, and development. Functional analyses were conducted using RNAi for the first time in horn flies. Gene knockdown by RNAi resulted in higher horn fly mortality (protease inhibitor functional group), reduced oviposition (vitellogenin, ferritin and vATPase groups) or both (immune response and 5'-NUC groups) when compared to controls. Silencing of ubiquitination ESTs did not affect horn fly mortality and ovisposition while gene knockdown in the ferritin and vATPse functional groups reduced mortality when compared to controls. Conclusions These results advanced the molecular characterization of this important ectoparasite and suggested candidate protective antigens for the development of vaccines for the control of horn fly infestations. PMID:21310032

2011-01-01

55

IMPACT OF SWORDFISH FISHERIES ON SEA TURTLES IN THE AZORES  

Microsoft Academic Search

FERREIRA , R.L., H.R. MARTINS , A.A. SILVA & A.B. BOLTEN 2001. Impact of swordfish fisheries on sea turtles in the Azores. Arquipélago . Life and Marine Sciences 18A: 75-79. Ponta Delgada. ISSN 0873-4704. The surface longline fishery around the Azores targets swordfish (Xiphias gladius ). Bycatch from this fishery includes loggerhead sea turtles (Caretta caretta ) and occasionally leatherback

ROGÉRIO L. FERREIRA; HELEN R. MARTINS; ALEXANDRE A. DA SILVA; ALAN B. BOLTEN

56

VAN NIEUKERKEN ET AL.: ORDER LEPIDOPTERA212 Zootaxa 3148 2011 Magnolia Press Order Lepidoptera Linnaeus, 1758 (4 suborders) (15,578 genera, 157,424 species, 50/86) 1 2 3  

E-print Network

Linnaeus, 1758 (4 suborders) (15,578 genera, 157,424 species, 50/86) 1 2 3 Unassigned early lepidopterans should be cited as "Order Lepidoptera Linnaeus, 1758. In: Zhang, Z.-Q. (Ed.) Animal biodiversity

Penz, Carla

57

[Metazoan parasites of bream (Abramis brama Linnaeus, 1758) in Lake Durusu (Terkos)].  

PubMed

In this study, metazoan parasites of bream (Abramis brama Linnaeus, 1758) in the Lake Durusu (Terkos) were investigated between June 2002 and May 2003. During this study, a total of 67 bream were examined for the presence of metazoan parasites. Ten species of parasites were found on 64 of the 67 fish examined. These parasites are: Dactylogyrus sphyrna (Linstow, 1878) and D. distinguendus (Nybelin, 1936) Monogenoidea, Caryophyllaeus laticeps (Pallas, 1781) Cestoidea, Tetracotyle sp, Diplostomum sp. and Tylodelphys clavata (Nordmann, 1832) metacercaria Trematoda, Eustrongylides excisus (Jagerskiöld, 1909) Nematoda, Piscicola geometra (Linnaeus, 1758) Hirudinea, glochidia of mollusk, Bivalvia, Argulus foliaceus (L., 1758) Crustacea. Diplostomum sp., Dactylogyrus sphyrna and D. distinguendus were found to be the dominant parasites of A. brama. Both the prevalence and intensity of other parasites were not found to be high. All identified parasites are a new finding for A. brama in the Lake Durusu. This is the first time that D. distinguendus has been identified in Turkey. PMID:17160860

Karatoy, Emine; Soylu, Erhan

2006-01-01

58

The European eel ( Anguilla anguilla , Linnaeus), its Lifecycle, Evolution and Reproduction: A Literature Review  

Microsoft Academic Search

The European eel (Anguilla anguilla Linnaeus 1758) is a species typical for waters of Western Europe. Thanks to early expeditions on the Atlantic Ocean by the\\u000a Danish biologist Johannes Schmidt who found small (<10mm) leptocephali larvae in the Sargasso Sea about 100 years ago, we\\u000a have now a strong indication where the spawning site for this species is located. The

Vincent J. T. van Ginneken; Gregory E. Maes

2005-01-01

59

Effect of meal size on postprandial metabolic response in Chinese catfish ( Silurus asotus Linnaeus)  

Microsoft Academic Search

The effect of relative meal size (0.5–24% body mass) on specific dynamic action (SDA) was assessed in Chinese catfish (Silurus asotus Linnaeus) (30.90±1.30 g) at 25.0°C; the cutlets of freshly killed loach without viscera, head and tail were used as a test meal. There was no significant difference in either SDA duration or peak oxygen consumption (VO2) among low meal size

Shi-Jian Fu; Zhen-Dong Cao; Jiang-Lan Peng

2006-01-01

60

Carolus Linnaeus, the ash, worm-wood and other anti-malarial plants.  

PubMed

In 1735 Carolus Linnaeus wrote that quinine was the preferred treatment for malaria but that the bark of the ash (Fraxinus excelsior) and worm-wood (Artemisia absinthium) also had effects on the disease. We here report that lipo- and hydrophilic extracts of the bark of the ash inhibit the in vitro growth of the asexual stages of P. falciparum. The data suggests that the knowledge of the treatment of malaria was already available in Europe some 300 years ago. PMID:20936911

Aydin-Schmidt, Berit; Thorsell, Walborg; Wahlgren, Mats

2010-12-01

61

Regional and temporal changes in epizoobiontic bryozoan-communities of Flustra foliacea (Linnaeus, 1758) and implications for North Sea ecology  

NASA Astrophysics Data System (ADS)

Until recently, bryozoans have not been used as indicators for changes in bottom communities or climate control in the North Sea Basin, despite a 200-year history of bryozoan collecting. The epizoobiontic bryozoan fauna of Flustra foliacea (Linnaeus, 1758) was analysed on 51 sample stations kept in four German museums. The samples cover the entire North Sea and different time periods (1776-2008, mainly the period of 1904/1905 compared to 1980-87). Cluster analysis shows a differentiation into a northern and a southern North Sea assemblage. The northern assemblage is characterized by Amphiblestrum flemingii (Busk, 1854), Callopora dumerilii (Audouin, 1826) and Tricellaria ternata (Ellis & Solander, 1786), while the southern North Sea is characterized by Electra pilosa (Linnaeus, 1767), Crisia eburnea (Linnaeus, 1758) and Plagioecia patina (Lamarck, 1816). Spatial separation approximately follows the 50 m depth contour. The temporal distribution patterns of bryozoans are discussed in terms of NAO (North Atlantic Oscillation) and temperature variations.

Bitschofsky, F.; Forster, S.; Scholz, J.

2011-02-01

62

Bioaccumulation and depuration of some trace metals in the mussel, Perna viridis (Linnaeus)  

SciTech Connect

Bivalves are well known for their ability to concentrate heavy metals in their tissue from environmental water. Experimental studies on the accumulation of these pollutants by molluscs have been extensively conducted. The depuration of accumulated metals in a toxicant free medium has also been studied. Bivalve molluscs may form useful tools in monitoring heavy metal pollution. However, such studies are scant in tropical species. This paper reports the bioaccumulation and depuration of Hg, Cu, Zn and Pb by the mussel Perna viridis (Linnaeus) from seawater and explores its suitability as an indicator organism for metal pollution.

Lakshmanan, P.T. (Central Institute of Fisheries Technology, Cochin (India)); Nambisan, P.N.K. (Cochin Univ. of Science and Technology (India))

1989-07-01

63

Dieta de tiburones juveniles Prionace glauca (Linnaeus, 1758) (Carcharhiniformes: Carcharhinidae) en la zona litoral centro-sur de Chile Diet of juvenile blue sharks Prionace glauca (Linnaeus, 1758) (Carcharhiniformes: Carcharhinidae) in coastal waters off central-south Chile  

Microsoft Academic Search

Feeding studies of pelagic sharks in Chilean waters are rare because of the difficulty in accessing and collecting stomachs. This paper is the first contribution to the knowledge of the diet of juvenile P. glauca (Linnaeus, 1758), caught in the coastal zone of central-southern Chile. We described the diet of 13 juvenile P. glauca using frequency of occurrence, percent by

M. Cecilia Pardo-Gandarillas; Freddy Duarte; Javier Chong; Christian M. Ibáñez

2007-01-01

64

The effect of dissolved oxygen and salinity on oxygen consumption, ammonia excretion and osmotic pressure of Penaeus setiferus (Linnaeus) juveniles  

Microsoft Academic Search

The white shrimp Penaeus setiferus (Linnaeus) is an abundant species in the coastal lagoons and estuaries of the Gulf of Mexico. This species is well adapted to environments of low salinity and can tolerate low levels of dissolved oxygen. This study was designed to measure the effects of prolonged hypoxia and salinity level on: (a) the oxygen consumption and ammonia

Carlos Rosas; Evenor Martinez; Gabriela Gaxiola; Roberto Brito; Adolfo Sánchez; Luis A. Soto

1999-01-01

65

Reproductive seasonality, settlement, and post-settlement mortality of Pocillopora damicornis (Linnaeus), at Lizard Island, Great Barrier Reef  

Microsoft Academic Search

Pocillopora damicornis (Linnaeus) has seasonal gametogenesis and planula release at Lizard Island, Great Barrier Reef, in contrast with several previous reports on the species at other locations. The number of planulae released and gonad development varied considerably among colonies sampled at the same time, but reproductive activity occurred predominantly in winter. P. damicornis planulae settled preferentially on algal-covered substrata, rather

Vicki J. Harriott

1983-01-01

66

INTRODUCED LEAF BEETLES OF THE MARITIME PROVINCES, 2: THE CEREAL LEAF BEETLE OULEMA MELANOPUS (LINNAEUS) (COLEOPTERA: CHRYSOMELIDAE)  

Microsoft Academic Search

Voucher specimens of the cereal leaf beetle, Oulema melanopus (Linnaeus), from the Maritime Provinces of Canada were examined. This important cereal pest is newly recorded from Prince Edward Island. Most populations established in the Maritime Provinces of Canada probably originated from southern Ontario where O. melanopus was first discovered about 1965. Historical information demonstrates that the beetle spread northeastward by

LAURENT LESAGE; ERHARD JOHN DOBESBERGER; CHRISTOPHER G. MAJKA

67

Carl Linnaeus, Erasmus Darwin and Anna Seward: Botanical Poetry and Female Education  

NASA Astrophysics Data System (ADS)

This article will explore the intersection between `literature' and `science' in one key area, the botanical poem with scientific notes. It reveals significant aspects of the way knowledge was gendered in the Enlightenment, which is relevant to the present-day education of girls in science. It aims to illustrate how members of the Lichfield Botanical Society (headed by Erasmus Darwin) became implicated in debates around the education of women in Linnaean botany. The Society's translations from Linnaeus inspired a new genre of women's educational writing, the botanical poem with scientific notes, which emerged at this time. It focuses in particular on a poem by Anna Seward and argues that significant problems regarding the representation of the Linnaean sexual system of botany are found in such works and that women in the culture of botany struggled to give voice to a subject which was judged improper for female education. The story of this unique poem and the surrounding controversies can teach us much about how gender impacted upon women's scientific writing in eighteenth century Britain, and how it shaped the language and terminology of botany in works for female education. In particular, it demonstrates how the sexuality of plants uncovered by Linnaeus is a paradigmatic illustration of how societal forces can simultaneously both constrict and stimulate women's involvement in science. Despite the vast changes to women's access in scientific knowledge of the present day, this `fair sexing' of botany illustrates the struggle that women have undergone to give voice to their botanical knowledge.

George, Sam

2014-03-01

68

AVALIAÇÃO DA CAPACIDADE DE Stomoxys calcitrans (LINNAEUS, 1758) EM CARREAR BACTÉRIAS ENVOLVIDAS NAS ETIOLOGIAS DAS MASTITES DE MUNICÍPIOS DO RIO DE JANEIRO  

Microsoft Academic Search

3 ABSTRACT:- MORAES, A.P.R.; BADINI, P.V.; SOUZA, M.M.S. DE; BITTENCOURT, A.J. (Evaluation of Stomoxys calcitrans (Linnaeus, 1758) ability to carry bacteria involved in the etiology of mastitis in counties of Rio de Janeiro.) Avaliação da capacidade de Stomoxys calcitrans (Linnaeus, 1758) em carrear bactérias envolvidas nas etiologias das mastites de municípios do Rio de Janeiro. Revista Brasileira de Parasitologia Veterinária

ANA PAULA R. MORAES; PABLO V. BADINI; AVELINO J. BITTENCOURT

2004-01-01

69

Venomous auger snail Hastula (Impages) hectica (Linnaeus, 1758): molecular phylogeny, foregut anatomy and comparative toxinology.  

PubMed

The >10,000 living venomous marine snail species [superfamily Conoidea (Fleming, 1822)] include cone snails (Conus), the overwhelming focus of research. Hastula hectica (Linnaeus, 1758), a venomous snail in the family Terebridae (Mörch, 1852) was comprehensively investigated. The Terebridae comprise a major monophyletic group within Conoidea. H. hectica has a striking radular tooth to inject venom that looks like a perforated spear; in Conus, the tooth looks like a hypodermic needle. H. hectica venom contains a large complement of small disulfide-rich peptides, but with no apparent overlap with Conus in gene superfamilies expressed. Although Conus peptide toxins are densely post-translationally modified, no post-translationally modified amino acids were found in any Hastula venom peptide. The results suggest that different major lineages of venomous molluscs have strikingly divergent toxinological and venom-delivery strategies. PMID:17886885

Imperial, Julita S; Kantor, Yuri; Watkins, Maren; Heralde, Francisco M; Stevenson, Bradford; Chen, Ping; Hansson, Karin; Stenflo, Johan; Ownby, John-Paul; Bouchet, Philippe; Olivera, Baldomero M

2007-12-15

70

Karyotype and chromosome banding of endangered crucian carp, Carassius carassius (Linnaeus, 1758) (Teleostei, Cyprinidae)  

PubMed Central

Abstract The karyotype and other chromosomal characteristics the crucian carp (Carassius carassius (Linnaeus, 1758)) were revealed by means of conventional banding protocols (C, CMA3, AgNOR). The diploid chromosome number (2n) in this species was 100. Its karyotype was composed of 10 pairs of metacentric, 18 pairs of submetacentric and 22 pairs of subtelo- to acrocentric chromosomes without any microchromosomes. C-banding identified blocks of telomeric heterochromatin on seven chromosome pairs. The NORs were situated on the p arms of the 14th pair of submetacentric chromosomes and on the p arms of the 32nd pair of subtelo-acrocentric chromosomes; AgNOR-positive signals corresponded to the CMA3-positive signals. These chromosome characteristics may suggest a paleo-allotetraploid origin of Carassius carassius genome. PMID:24260701

Knytl, Martin; Kalous, Lukas; Rab, Petr

2013-01-01

71

Subulura halli (Ascaridida: Subuluridae) from the endangered great bustard Otis tarda Linnaeus (Aves: Gruiformes) in China.  

PubMed

Subulurid nematodes identified as Subulura halli Barreto, 1918 were collected from the endangered bird Otis tarda Linnaeus (Gruiformes: Otididae) in China. A detailed redescription of the hitherto poorly known species is presented using both light and, for the first time, scanning electron microscopy. Previously unreported and erroneous morphological features of taxonomic significance are revealed. This species can be readily distinguished from its congeners by the relatively long oesophagus (1.47-1.92 mm long, representing 10.6-16.9% of body length), the number and arrangement of male caudal papillae (11 pairs in total, arranged as five pairs of precloacal and six pairs of postcloacal papillae), the equal length of spicules (1.35-1.52 mm long, representing 10.7-13.7% of body length) and the presence of a small medioventral, precloacal papilla in the male. PMID:24684055

Du, Li-Qiang; Xu, Zhen; Li, Shun-Cai; Li, Liang

2014-02-01

72

Antimicrobial-resistant Salmonella isolated from Eurasian otters (Lutra lutra Linnaeus, 1758) in Portugal.  

PubMed

Eurasian otters (Lutra lutra Linnaeus, 1758) are present in a wide range of aquatic environments. Salmonella isolates have been obtained from otters at rehabilitation centers and in the wild and are sometimes associated with serious illnesses. Antimicrobial-resistant Salmonella were isolated from otter fecal samples collected in March 2006, September 2007, and March 2008 in two river basins in southern Portugal. From 67 samples tested, five were positive for Salmonella (7.58%). None of the isolates were susceptible to all antimicrobials tested, and all were resistant to multiple antimicrobials. Our results confirm the role of otters as potential carriers of Salmonella and the importance of environmental exposure to antimicrobial agents in selection for resistance in bacteria. PMID:20966276

Oliveira, Manuela; Pedroso, Nuno Miguel; Sales-Luís, Teresa; Santos-Reis, Margarida; Tavares, Luís; Vilela, Cristina Lobo

2010-10-01

73

Evolutionary developmental genetics of floral symmetry: the revealing power of Linnaeus' monstrous flower.  

PubMed

Actinomorphic flowers have several planes of reflectional symmetry while zygomorphic flowers have just one. In a number of independent cases, actinomorphic flowers have arisen from zygomorphic ones during evolution. A famous example, studied by Linnaeus, is an actinomorphic variety of the common toadflax Linaria vulgaris. It has been shown now that this mutant carries a defect in LCYC, a homolog of the CYC gene, which controls zygomorphy in Antirrhinum majus.((1)) Interestingly, the mutant phenotype is not due to changes in the LCYC nucleotide sequence but rather to an extensive, heritable methylation of the gene.((1)) A second gene controlling zygomorphy in snapdragon, DICH, has recently also been shown to be a CYC homolog and both genes share significant sequence similarity with TB1, one of the key genes of maize domestication. The respective family of genes, probably encoding transcription factors, might thus become both a useful instrument and a target of future plant evolutionary developmental genetics. PMID:10684579

Theissen, G

2000-03-01

74

Parasites of the hard clam Meretrix meretrix Linnaeus from Western Johor Straits, Malaysian  

NASA Astrophysics Data System (ADS)

This study describes the apicomplexa as well as other parasites infecting organs/tissues of the hard clam Meretrix meretrix Linnaeus, from Merambong Shoal, Western Johor Straits, Malaysia. Samples were collected randomly by hand picking, in November and December 2013. Histological techniques were performed, stained using Masson's Trichrome protocol and observed under light microscope. The results showed that gonad and gill were the most infected organs followed by digestive gland, intestine and adductor muscle. No pathology condition was observed in the mantle. Histophatological examination showed that the gregarine, Nematopsis, unidentified coccidian and Perkinsus were found in the gill and gonad, and also in the numerous hemocytes. Other pathological conditions such as bacteria-like inclusion and intracellular bacteria were also observed in the same organs. Further investigations are needed particularly on other molluscs present at the study area. Understanding the morphology and pathology of parasites infecting mollusks are very important for management of the resources.

Azmi, Nur Fauzana; Ghaffar, Mazlan Abd.; Cob, Zaidi Che

2014-09-01

75

Description and evaluation of imposex in Strombus canarium Linnaeus, 1758 (Gastropoda, Strombidae): a potential bio-indicator of tributyltin pollution  

Microsoft Academic Search

Strombus canarium Linnaeus, 1758 is an important gastropod species within the study area and was traditionally collected for food by the locals.\\u000a The objective of the present study is to assess the incidence of imposex and its severity in this species. Adult conchs were\\u000a sampled during their main reproductive period, from October 2005 to January 2006, at Sungai Pulai estuary,

Zaidi Che Cob; Aziz Arshad; Japar Sidik Bujang; Mazlan Abd. Ghaffar

2011-01-01

76

Simultaneous determination of phenolic acids and flavonoids in Lycium barbarum Linnaeus by HPLC–DAD–ESI-MS  

Microsoft Academic Search

A high-performance liquid chromatography–diode array detection–mass spectrometry method with electrospray ionization mode (HPLC–DAD–ESI-MS) was developed for simultaneous determination of phenolic acids and flavonoids in fruits of Lycium barbarum Linnaeus, a widely used traditional Chinese herb possessing vital biological activity. Both phenolic acids and flavonoids were extracted with 50% ethanol and purified using a polymeric solid phase extraction cartridge followed by

B. Stephen Inbaraj; H. Lu; T. H. Kao; B. H. Chen

2010-01-01

77

First report of natural infection of least weasel (Mustela nivalis Linnaeus, 1776) with Leishmania major in Tunisia.  

PubMed

Zoonotic cutaneous leishmaniasis, caused by Leishmania major (L. major), is endemic in Tunisia. Several rodents have been identified as reservoir hosts of parasites. This study reports, for the first time, the natural infection with L. major zymodeme MON-25 in a specimen of least weasel: Mustela nivalis Linnaeus, 1776 (M. nivalis) collected in Sidi Bouzid. This finding justifies further research on larger samples of this animal to verify its role as a potential reservoir host for cutaneous leishmaniasis in Tunisia. PMID:21867414

Ghawar, Wissem; Snoussi, Mohamed Ali; Hamida, Nabil Bel Haj; Boukthir, Aïcha; Yazidi, Rihab; Chaâbane, Sana; Chemkhi, Jomâa; Zâatour, Amor; Salah, Afif Ben

2011-11-01

78

The diet of the Slow Worm, Anguis f. fragilis LINNAEUS, 1758, in the Tarvisio Forest (Carnic Alps, NE Italy)  

Microsoft Academic Search

Data on diet composition of Slow Worms, Anguis J. fragilis LINNAEUS, 1758, living in alpine regions of north-eastern Italy (Tarvisio Forest, province of Udine) are given. All information comes from an analysis of gut contents of specimens found dead in the field. Slow worms preyed on a wide variety of invertebrates , essentially earth-worms (33.33% of the prey individuals) and

LUCA LUISELLI

79

Accumulation of perfluorinated compounds in captive Bengal tigers ( Panthera tigris tigris) and African lions ( Panthera leo Linnaeus) in China  

Microsoft Academic Search

The accumulation of perfluorinated compounds (PFCs) in the sera of captive wildlife species Bengal tigers (Panthera tigris tigris) and African lions (Panthera leo Linnaeus) from Harbin Wildlife Park, Heilongjiang Province, in China were analyzed by high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS\\/MS). Perfluorooctanesulfonate (PFOS) was the predominant contaminant with a mean serum concentration of 1.18ngmL?1 in tigers and 2.69ngmL?1 in lions.

Xuemei Li; Leo Wai Yin Yeung; Sachi Taniyasu; Paul K. S. Lam; Nobuyoshi Yamashita; Muqi Xu; Jiayin Dai

2008-01-01

80

Morphometric and allometric studies on eggshells and embryos of free-living Canada geese ( Branta c. canadensis Linnaeus, 1758)  

Microsoft Academic Search

A total of 289 eggs laid by free-living Canada geese ( Branta canadensis canadensis Linnaeus, 1758) in the northwestern part of Germany were collected in spring 2002 and 2003 and examined for shell and embryo parameters. Mean egg mass was 160.88±19.68 g. Approximately 90% of all eggs had a mass between 140 and 185 g. About 90% of all clutches consisted of

Brigitte M. Bönner; Walburga Lutz; T. Redmann; Sabine Jäger; Brinja Reinhardt; J. Wissing; W. Knickmeier; E. F. Kaleta

2004-01-01

81

Ciliate protozoa in the rumen of Brazilian water buffalo, Bubalus bubalis Linnaeus.  

PubMed

Total numbers and distribution of genera, subgenera and species were determined for the ciliate protozoa in rumen contents of 4 Brazilian water buffalo Bubalus bubalis Linnaeus. The fauna of one animal, housed in close proximity to European and zebu-type cattle, differed considerably from that of the remaining animals, which were somewhat isolated on a large ranch. Several of the protozoan species observed in the semi-isolated animals were first described in rumen contents from humped Indian cattle, and their subsequent occurrence in other hosts and geographic locations has been limited or absent. In all, 49 different species of protozoa were found, 8 of which have not been previously described. Three of the new species belong to the genus Entodinium: E. ciculum sp. n., E. spinonucleatum sp. n. and E. triangulum sp. n.; 4 to Diplodinium (Ostracodinium): D. (O.) brazili sp. n., D. (O.) esalqum sp. n., D. (O.) nucleolobum sp. n., and D. (O.) tiete sp. n.; and one to Diplodinium (Eudiplodinium): D. (E.) bubalus sp. n. PMID:120894

Dehority, B A

1979-11-01

82

On a new species of the genus Cobboldina (Nematoda: Atractidae) from Hippopotamus (Hippopotamus amphibius Linnaeus, 1758) captivated at the Alipore Zoological Garden, Kolkata, West Bengal, India.  

PubMed

The specimens of the genus Cobboldina Leiper, 1911 and family Atractidae (Railliet, 1917) Travassos, 1919 recovered from the faecal matter of Hippopotamus (Hippopotamus amphibius Linnaeus, 1758) from the Alipore Zoological Garden, Kolkata, India recognized as a new species after careful observation. The collected nematode differs from the only valid species Cobboldina vivipara Leiper, 1911, in the presence of gubernaculum (13.2-29.7 ?m in length) and the number of caudal papillae (10 pairs) and named as Cobboldina gubernacularia sp. n., This is the second species of the genus Cobboldina recorded from the host Hippopotamus amphibius Linnaeus, 1758 remaining captive in the Alipore Zoological Garden, Kolkata, India. PMID:24082537

Mondal, Sagata; Manna, Buddhadeb

2012-10-01

83

The discovery of Caligus temnodontis Brian, 1924 (Copepoda: Caligidae) from the bluefish Pomatomus saltatrix (Linnaeus) in the eastern Mediterranean Sea.  

PubMed

The temnodontis variety of Caligus mauritanicus Brian, 1924 described by Brian (1924) is a valid species known only from a single host species, Pomatomus saltatrix (Linnaeus). New material of this species has been examined from the same host fish caught from Abuqir Bay, Alexandria (Egypt), from Iskenderun Bay (Turkey) and from off the coast of South Africa. Using this material, C. temnodontis Brian, 1924 is redescribed and compared with related species. It is most closely related to the Indo-Pacific species C. pagrosomi Yamaguti, 1939. PMID:20532854

Ozak, Argun A; El-Rashidy, Hoda H; Demirkale, Ibrahim; Boxshall, Geoff A

2010-07-01

84

Reproductive seasonality, settlement, and post-settlement mortality of Pocillopora damicornis (Linnaeus), at Lizard Island, Great Barrier Reef  

NASA Astrophysics Data System (ADS)

Pocillopora damicornis (Linnaeus) has seasonal gametogenesis and planula release at Lizard Island, Great Barrier Reef, in contrast with several previous reports on the species at other locations. The number of planulae released and gonad development varied considerably among colonies sampled at the same time, but reproductive activity occurred predominantly in winter. P. damicornis planulae settled preferentially on algal-covered substrata, rather than bare coral substrata, but showed subsequent mortality inversely related to this settlement preference. Competition with algae and biological disturbance contribute to spat mortality at different stages of settlement and growth.

Harriott, Vicki J.

1983-12-01

85

Lysophosphatidylcholine from white muscle of bonito Euthynnus pelamis (Linnaeus): involvement of phospholipase A1 activity for its production.  

PubMed

A fairly large amount of lysophosphatidylcholine (LPC) was detected in the fresh muscle of bonito Euthynnus pelamis (Linnaeus). The major fatty acid esterified in LPC were highly unsaturated fatty acids, such as docosahexaenoic and eicosapentaenoic acids, and the form was mainly composed of 1-lyso-2-acyl-sn-glycero-3-phosphocholine (1-LPC). The content of this species continued to increase during 4 months of frozen storage and then decreased. Phospholipase A1 activity detected in the bonito muscle was supposed to be responsible for the accumulation of LPC. PMID:7918613

Satouchi, K; Sakaguchi, M; Shirakawa, M; Hirano, K; Tanaka, T

1994-10-01

86

The migration patterns of the European flounder Platichthys flesus (Linnaeus, 1758) (Pleuronectidae, Pisces) at the southern limit of its distribution range: Ecological implications and fishery management  

Microsoft Academic Search

This study aims to determine the diversity of migration patterns of the European flounder (Platichthys flesus (Linnaeus, 1758)) present in the Minho estuary and in the adjacent coastal area (NW-Iberian Peninsula). Assessing the diversity of flounder migration patterns at the southern limit of its distribution allows the determination of characteristics of the species' ecology and provides useful information for fishery

Pedro Morais; Ester Dias; John Babaluk; Carlos Antunes

2011-01-01

87

THE PHYSIOLOGY OF SKELETON FORMATION IN CORALS. III. CALCIFICATION RATE AS A FUNCTION OF COLONY WEIGHT AND TOTAL NITROGEN CONTENT IN THE REEF CORAL MANICINA AREOLATA (LINNAEUS)  

Microsoft Academic Search

This paper deals with an experimental study of the relationship between colony size, total nitrogen content, surface area and rate of calcification in the reef-building coral Manicina areolata (Linnaeus). Tamura and Hada (1932) stated that coral growth ceases after certain colony sizes are attained. The Stephensons (1933) reported that the percentage annual increase in surface area and diameter was much

THOMAS F. GOREAU; NORA I. GOREAU

88

The potential of periphyton-based culture of two Indian major carps, rohu Labeo rohita (Hamilton) and gonia Labeo gonius (Linnaeus)  

Microsoft Academic Search

The effects of periphyton, grown on bamboo substrates, on growth and production of two Indian major carps, rohu, Labeo rohita (Hamilton) and gonia, Labeo gonius (Linnaeus), were studied at the Bangladesh Agricultural University, Mymensingh. For each species, five ponds were provided with bamboo substrates and five ponds without substrate (control). Ponds were stocked at a rate of 10 000 ha1

M. E. Azim; M. A. Wahab; Dam van A. A; M. C. M. Beveridge; M. C. J. Verdegem

2001-01-01

89

ÁREA DE USO E UTILIZAÇÃO DE HABITAT DE CACHORRO-DO-MATO (Cerdocyon thous LINNAEUS, 1766) NO CERRADO DA REGIÃO CENTRAL DO TOCANTINS, BRASIL  

Microsoft Academic Search

Home range and habitat use of crab-eating fox (Cerdocyon thous Linnaeus, 1766), in the Cerrado of the central region of Tocantins, Brazil. Cerdocyon thous is a species widely distributed in Brazil, in a variety of habitats ranging from open area to forests and in the central region of Tocantins (Brazil) is relatively abundant. Nevertheless, literature related to habitat use and

Roberto Guilherme Trovati; Bernardo Alves de Brito; José Maurício Barbanti Duarte; Avenida Pádua Dias; Ed. Sede

2007-01-01

90

Leaf litter removal by the snail Terebralia palustris (Linnaeus) and sesarmid crabs in an East African mangrove forest (Gazi Bay, Kenya)  

Microsoft Academic Search

Quantitative data on leaf litter removal activity of macrozoobenthic organisms in the mangrove forests of East Africa are virtually non-existent. In the present study, litter removal activity was determined in two contrasting types of mangrove stands in Gazi Bay (Kenya). In the relatively elevated Ceriops tagal vegetation, which is only flooded during spring tides, the detritivorous snail Terebralia palustris (Linnaeus)

F. J Slim; M. A. Hemminga; C. Ochieng; N. T Jannink; E Cocheret de la Morinière; G. Van der Velde

1997-01-01

91

Distribution patterns and calling song variation in species of the genus Cicada Linnaeus, 1758 (Hemiptera, Cicadidae) in the Aegean Sea area  

Microsoft Academic Search

The present paper gives a comparative analysis of the calling songs of selected populations within species of the genus Cicada Linnaeus from the Greek and Turkish mainlands as well as from a number of representative Aegean islands, with a view to compare present cicada biogeography patterns with the palaeogeography of the area. Recordings of the male calling songs and analyses

P. C. SimÕes; J. A. Quartau

2008-01-01

92

Ontogenetic development of digestive functionality in golden pompano Trachinotus ovatus (Linnaeus 1758).  

PubMed

Ontogenetic development of the digestive system in golden pompano (Trachinotus ovatus, Linnaeus 1758) larvae was histologically and enzymatically studied from hatch to 32 day post-hatch (DPH). The development of digestive system in golden pompano can be divided into three phases: phase I starting from hatching and ending at the onset of exogenous feeding; phase II starting from first feeding (3 DPH) and finishing at the formation of gastric glands; and phase III starting from the appearance of gastric glands on 15 DPH and continuing onward. The specific activities of trypsin, amylase, and lipase increased sharply from the onset of first feeding to 5-7 DPH, followed by irregular fluctuations. Toward the end of this study, the specific activities of trypsin and amylase showed a declining trend, while the lipase activity remained at similar levels as it was at 5 DPH. The specific activity of pepsin was first detected on 15 DPH and increased with fish age. The dynamics of digestive enzymes corresponded to the structural development of the digestive system. The enzyme activities tend to be stable after the formation of the gastric glands in fish stomach on 15 DPH. The composition of digestive enzymes in larval pompano indicates that fish are able to digest protein, lipid and carbohydrate at early developmental stages. Weaning of larval pompano is recommended from 15 DPH onward. Results of the present study lead to a better understanding of the ontogeny of golden pompano during the larval stage and provide a guide to feeding and weaning of this economically important fish in hatcheries. PMID:24448718

Ma, Zhenhua; Guo, Huayang; Zheng, Panlong; Wang, Long; Jiang, Shigui; Qin, Jian G; Zhang, Dianchang

2014-08-01

93

Properties of phospholipase A1/transacylase in the white muscle of bonito Euthynnus pelamis (Linnaeus).  

PubMed

The properties of phospholipase A1 (PLA1) obtained from the white muscle of bonito, Euthynnus pelamis (Linnaeus), were examined. The PLA1 activity had a pH optimum from 6.5 to 7.0 for phosphatidylcholine (PC), and calcium ion was not required. The optimum temperature was from 20 to 30 degrees C. When a fatty alcohol was used as an acceptor, a wax ester was produced by transferring a fatty acid at the sn-1 position of the donor's PC. The maximum production of lysophosphatidylcholine was shifted by 0.5 pH units to the acidic side and the pH optimum of wax ester synthesis was from 6.0 to 6.5. The synthesis was independent of calcium ion and Coenzyme A. The transacylation was also observed when 1-lyso-2-acyl-sn-glycero-3-phosphocholine was used as an acceptor. Fatty acid at the sn-1 position of the donor PC was transferred to the unoccupied hydroxy group of the acceptor at the sn-1 position. When 2,3-dipalmitoyl-sn-glycero-1-phosphocholine was used as the acyl donor, a similar amount of palmitic acid was transferred as in the case of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine. However, 1-acyl-2-lyso-sn -glycero-3-phosphocholine, a positional isomer, was a poor acceptor. These results indicate that the transacylation by the PLA1 from bonito muscle is not stereospecific, but is position-specific both for the acyl donor and acceptor. PMID:9498560

Hirano, K; Tanaka, A; Yoshizumi, K; Tanaka, T; Satouchi, K

1997-12-01

94

Optimization of enzyme-assisted extraction and characterization of collagen from Chinese sturgeon (Acipenser sturio Linnaeus) skin  

PubMed Central

Background: Sturgeon (Acipenser sturio Linnaeus) skin contains high amount of nutrients including unsaturated fatty acids and collagen. A pepsin-assisted extraction procedure was developed and optimized for the extraction of collagen from Chinese sturgeon (Acipenser sturio Linnaeus) skins. Objective: To determine the optimum conditions with the maximum yield of the pepsin-soluble collagen (PSC) extraction. Materials and Methods: The conditions of the extraction were optimized using response surface methodology. The Box–Behnken design was used to evaluate the effects of the three independent variables (extraction time, enzyme concentration, and solid–liquid ratio) on the PSC yield of the sturgeon skin. Results: The optimal conditions were: solid–liquid ratio of 1:11.88, enzyme concentration of 2.42%, and extraction time of 6.45 h. The maximum yield of 86.69% of PSC was obtained under the optimal conditions. This value was not significantly different from the predicted value (87.4%) of the RSM (P < 0.05). Conclusion: The results of this study indicated that the production of PSC from sturgeon skin is feasible and beneficial. The patterns of sodium dodecyl sulfate-polyacrylamide gel electrophoretic patterns (SDS-PAGE) indicated that the sturgeon skin contains type I collagen, which is made of ?-chain and ?-chain. The infrared spectra of the collagens also indicated that pepsin hydrolysis does not affect the secondary structure of collagen, especially triple-helical structure. PMID:24143042

Feng, Weiwei; Zhao, Ting; Zhou, Ye; Li, Fang; Zou, Ye; Bai, Shiqi; Wang, Wei; Yang, Liuqing; Wu, Xiangyang

2013-01-01

95

Geographically Widespread Swordfish Barcode Stock Identification: A Case Study of Its Application  

PubMed Central

Background The swordfish (Xiphias gladius) is a cosmopolitan large pelagic fish inhabiting tempered and tropical waters and it is a target species for fisheries all around the world. The present study investigated the ability of COI barcoding to reliably identify swordfish and particularly specific stocks of this commercially important species. Methodology We applied the classical DNA barcoding technology, upon a 682 bp segment of COI, and compared swordfish sequences from different geographical sources (Atlantic, Indian Oceans and Mediterranean Sea). The sequences of the 5? hyper-variable fragment of the control region (5?dloop), were also used to validate the efficacy of COI as a stock-specific marker. Case Report This information was successfully applied to the discrimination of unknown samples from the market, detecting in some cases mislabeled seafood products. Conclusions The NJ distance-based phenogram (K2P model) obtained with COI sequences allowed us to correlate the swordfish haplotypes to the different geographical stocks. Similar results were obtained with 5?dloop. Our preliminary data in swordfish Xiphias gladius confirm that Cytochrome Oxidase I can be proposed as an efficient species-specific marker that has also the potential to assign geographical provenance. This information might speed the samples analysis in commercial application of barcoding. PMID:22039414

Pappalardo, Anna Maria; Guarino, Francesca; Reina, Simona; Messina, Angela; De Pinto, Vito

2011-01-01

96

Molecular evidence for the occurrence of Contracaecum rudolphii A (Nematoda: Anisakidae) in shag Phalacrocorax aristotelis (Linnaeus) (Aves: Phalacrocoracidae) from Sardinia (western Mediterranean Sea)  

Microsoft Academic Search

Specimens of Contracaecum rudolphii Hartwich, 1964 (Nematoda: Anisakidae) from Phalacrocorax aristotelis (Linnaeus) from the Archipelago of La Maddalena (Sardinia, western Mediterranean Sea) were characterised genetically and compared with C. rudolphii A sensu D’Amelio et al. 1990 and C. rudolphii B sensu D’Amelio et al. 1990 from Phalacrocorax carbo sinensis (Blumenbach) from north-eastern Italy, and with C. rudolphii C sensu D’Amelio

Sarra Farjallah; Paolo Merella; Sofia Ingrosso; Andrea Rotta; Badreddine Ben Slimane; Giovanni Garippa; Khaled Said; Marina Busi

2008-01-01

97

Parhadjelia cairinae n. sp. (Nematoda: Habronematoidea: Habronematidae) in the Muscovy duck, Cairina moschata (Linnaeus, 1758) (Aves: Anseriformes: Anatidae), from the area de conservacion Guanacaste, Costa Rica.  

PubMed

A new species of Parahadjelia occurs in the muscovy duck, Cairina moschata (Linnaeus, 1758), from the Area de Conservacion Guanacaste, Costa Rica. The new species differs from Parhadjelia neglecta Lent and Freitas, 1939, in the body size, in the spicules shape and ratio of spicules, and in having 2 pairs of sessile papillae near the tail tip of the male. The characters exhibited by P. neglecta and the new species validate its generic status distinct from Hadjelia. PMID:15986621

Zhang, Luping; Brooks, Daniel R

2005-04-01

98

Update on geographic spread of invasive lionfishes (Pterois volitans [Linnaeus, 1758] and P. miles [Bennett, 1828]) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico  

USGS Publications Warehouse

The Indo-Pacific lionfishes (Pterois volitans [Linnaeus, 1758] and P. miles [Bennett, 1828]: Family Scorpaenidae) are the first nonnative marine fishes to establish in the Western North Atlantic/Caribbean region. The chronology of the invasion was reported last year (Schofield 2009) using records from the US Geological Survey's Nonindigenous Aquatic Species database. This article provides an update of lionfish geographic spread (as of October 2010) and predictions of future range.

Schofield, Pamela J.

2010-01-01

99

Adaptations for feeding on rock surfaces and sandy sediment by the fiddler crabs (Brachyura: Ocypodidae) Uca tetragonon (Herbst, 1790) and Uca vocans (Linnaeus, 1758)  

Microsoft Academic Search

Two species of fiddler crab, Uca tetragonon(Herbst, 1790) and Uca vocans(Linnaeus, 1758), which belong to the subgenus Gelasimus, dwell on rocky shores and muddy–sandy tidal flats, respectively, in Phuket Is., Thailand. We investigated their feeding ecology in relation to the morphology of their feeding organs: minor food-handling chelipeds and maxillipeds. U. tetragononfed chiefly on rocks covered by filamentous green algae.

Satoshi Takeda; Sombat Poovachiranon; Minoru Murai

2004-01-01

100

Populations and home range relationships of the box turtle, Terrapene carolina (Linnaeus)  

USGS Publications Warehouse

A population study of Terrapene carolina (Linnaeus) was made at the Patuxent Research Refuge, Maryland, from 1944 to 1947. A thirty acre area in bottomland forest was selected for intensive study. Turtles were marked by filing notches in marginal scutes according to a code. Turtles make extensive use of brushy shelter during the day as well.as at night. Gully banks and woods openings are used for sunning. Nights are usually spent in a 'form,' constructed by the turtle in leaves, debris, or earth. A form may be used once or it may be used repeatedly by the same or different turtles. Weather conditions most favorable to turtle activity are high humidity, warm sunny days, and frequent rains. Periods of activity are alternated with periods of quiet, even in favorable weather. There is no evidence for territorialism. Ranges of turtles of all ages and both sexes overlap grossly. Turtles are frequently found near each other but no antagonistic behavior has been observed. Adult turtles occupy specific home ranges which they maintain from year to year. Turtles retained their ranges even though a flood that completely covered the study area. Maximum home range diameters were determined by measurements of the mapped ranges of individual turtles. There was no significant difference between sizes of male and female ranges: males 33O+ 26 feet, females 37O+29 feet. A trail-laying device was used in following travel routes for 456 turtle days. Normal movements within the home range are characterized by (1) turns, doublings, detours, and criss-crossing paths, (2) interspersion of fairly direct traverses of the home range, (3) frequently repeated travels over certain routes. Maximum limits of the home range are ordinarily reached within a few days or weeks, although some turtles cover only one portion of the range at a time. Some turtles have two home ranges. One of these turtles was followed with a trailer for 161 days in 1946 and 1947. Trips outside the home range are made by females for egg laying. Trips of unexplained nature are made by both males and females. Turtles from other areas are occasional transients through the study plot. Standardized census trips provided data for estimating the size of the population. Census data were taken after females had returned from egg laying. The samples were spaced at intervals of a week or more to allow free movement of turtles over their ranges and assure more nearly equal availability of all turtles. These standard samples were compared by a collection ratio. Assumptions involved in the use of this ratio are discussed. Correction factors were applied to make allowance for turtles whose ranges.were partly inside and partly outside the study area, and for transient turtles. A second estimate, on the basis of the entire season's collecting, gave closely comparable results. The population of the study area is estimated to be between four and five turtles per acre, with juveniles constituting less than ten per cent of the total.

Stickel, L.F

1949-01-01

101

Populations and home range relationships of the box turtle, Terrapene c. carolina (Linnaeus)  

USGS Publications Warehouse

SUMMARY: A population study of the box turtle (Terrapene c. carolina Linnaeus) was made during the years 1944 to 1947 at the Patuxent Research Refuge, Maryland. A thirty acre area in well drained bottomland forest on the flood plain of the Patuxent River was selected for intensive study. Similarly forested land extended in all directions from the study plot. Markers were established at eighty-three foot intervals over the study plot for reference in recording locality data. Individuals were marked by filing notches in the marginal scutes according to a code system. There were 2109 collections of study area turtles. Records of collecting sites and turtle behavior showed that in the bottomlands habitat cover is utilized extensively during the day as well as at night. Turtles not actively moving about are almost always found in or around brush piles, heaps of debris, and tangles of vines and briars. Gully banks and woods openings are used for sunning. Turtles are occasionally found in the mud or water of the gullies. The commonest type of night retreat is a cavity constructed by the turtle in leaves, debris, or earth. These cavities, termed 'forms,' may be used only once, but are sometimes used repeatedly, often at intervals of several days or more. Different turtles sometimes use the same form on successive nights. Weather conditions most favorable to turtle activity are high humidity, warm sunny days, and frequent rains. The most unfavorable influences are low temperatures and drought. On most summer days there are some active turtles but individual turtles are not active every day. Periods of activity are alternated with periods of quiet even in favorable weather. This behavior is most pronounced in early spring and late fall when inactive days are often more numerous than active ones. Adult turtles occupy specific home ranges which they maintain from year to year. The turtles living in the study plot retained their ranges even through a flood that completely covered the area. Maximum home range diameters were determined by measurements of the mapped ranges of individual turtles. The average range of adult males was 330 feet, adult females 370 feet. The difference between male and female ranges was not statistically significant. There was no evidence of defense of territory. Ranges of turtles of all ages and both sexes overlapped grossly. Turtles were frequently found near each other and no antagonistic behavior was observed. A trail-laying device was developed in order to follow individual travel routes. The trailer consists of a light weight housing fastened to the turtle's back. It contains a spool of white thread that unwinds as the turtle moves, thus marking its exact route. Turtles selected for this more detailed study were followed with trailers for a total of 456 turtle days. Maps illustrating their travels are shown. Normal movements within the home range are characterized by, (1) turns, doublings, detours, and criss-crossing paths completely covering the area, (2) interspersion of fairly direct traverses of the home range, (3) frequently repeated travels over certain paths or routes. Trailer records and mapped collection records both show that the maximum limits of the home range are ordinarily reached within a few days or weeks. This general procedure is varied by some turtles to include intensive coverage of only one portion of the range at a time. Some turtles have two home ranges and travel between them at infrequent intervals. One turtle showing this behavior was followed with a trailer for 161 days during 1946 and 1947. Trips outside the home range are made by some turtles. These include egg laying trips by females as well as trips of unexplained nature made by both males and females. Turtles from other areas occasionally occur as transients in the study plot. The size of the population was estimated on the basis of collections during on

Stickel, L.F.

1950-01-01

102

Extensive fragmentation of the X chromosome in the bed bug Cimex lectularius Linnaeus, 1758 (Heteroptera, Cimicidae): a survey across Europe  

PubMed Central

Abstract Variation in the number of chromosomes was revealed in 61 samples of Cimex lectularius Linnaeus, 1758 from the Czech Republic and other European countries, hosted on Myotis Kaup, 1829 (4) and Homo sapiens Linnaeus, 1758 (57). The karyotype of all the specimens of Cimex lectularius analysed contained 26 autosomes and a varying number of the sex chromosomes. The number of sex chromosomes showed extensive variation, and up to 20 fragments were recorded. Altogether, 12 distinct karyotypes were distinguished. The male karyotypes consisted of 29, 30, 31, 32, 33, 34, 35, 36, 37, 40, 42 and 47 chromosomes. The females usually exhibited the number of chromosomes which was complementary to the number established in the males from the same sample. However, 11 polymorphic samples were revealed in which the karyotypes of females and males were not complementary each other. The complement with 2n = 26+X1X2Y was found in 44% of the specimens and 57,4% samples of bed bugs studied. The karyotypes with higher chromosome numbers as well as individuals with chromosomal mosaics were usually found within the samples exhibiting particularly extensive variation between individuals, and such complements were not found within samples contaning a few or single specimen. The occurrence of chromosomal mosaics with the karyotype constitution varying between cells of single individual was observed in five specimens (4.3%) from five samples. We assume that polymorphism caused by fragmentation of the X chromosome may result in meiotic problems and non-disjunction can produce unbalanced gametes and result in lowered fitness of individuals carrying higher numbers of the X chromosome fragments. This effect should be apparently enhanced with the increasing number of the fragments and this may be the reason for the observed distribution pattern of individual karyotypes in the studied samples and the rarity of individuals with extremely high chromosome numbers. The assumed lowering of the fitness of individuals carrying higher numbers of the X chromosome fragments could affect population dynamics of variable populations. PMID:24455100

Sadilek, David; Stahlavsky, Frantisek; Vilimova, Jitka; Zima, Jan

2013-01-01

103

Ecological status of a Margaritifera margaritifera (Linnaeus, 1758) population at the southern edge of its distribution (River Paiva, Portugal).  

PubMed

An important population of the critically endangered pearl mussel Margaritifera margaritifera (Linnaeus, 1758) was surveyed at the edge of its southern distribution (River Paiva, Portugal). Although an earlier study suggested that this population had a very low number of individuals (<500), a narrow distribution, and was mainly comprised by old specimens our data contradict these findings. Our assessment estimated a population with probably more than 5,000 individuals distributed across 80 km of the river length. From the 32 sites surveyed, 19 contained M. margaritifera with higher abundances verified in the middle and upper parts of the river (a maximum of 78 ind. per 100 m of river stretch was recorded). The pearl mussels showed a clear preference for areas near the banks, in shallow water, sandier and gravel sediments, and a high degree of riparian vegetation cover. The population structure was skewed with a very high percentage of large (and old) animals but 3.7 % of the individuals collected were juveniles (<60 mm in length); therefore, this population can be considered functional. Environmental characterization indicated that this river is still in excellent or good condition although some areas showed deterioration due to discharge of domestic effluents. The main conservation requirements of M. margaritifera in the River Paiva include maintaining the water quality (and if possible stopping the discharge of domestic effluents), increasing riparian vegetation cover, removing several weirs to increase connectivity, and increasing trout density. PMID:23820847

Sousa, Ronaldo; Amorim, Ângela; Sobral, Carina; Froufe, Elsa; Varandas, Simone; Teixeira, Amílcar; Lopes-Lima, Manuel

2013-11-01

104

Anti-inflammatory potential of monogalactosyl diacylglycerols and a monoacylglycerol from the edible brown seaweed Fucus spiralis Linnaeus.  

PubMed

A monoacylglycerol (1) and a 1:1 mixture of two monogalactosyl diacylglycerols (MGDGs) (2 and 3) were isolated from the brown seaweed Fucus spiralis Linnaeus. The structures were elucidated by spectroscopic means (NMR and MS) and by comparison with the literature. Compound 1 was composed of a glycerol moiety linked to oleic acid (C18:1 ?9). Compounds 2 and 3 contained a glycerol moiety linked to a galactose unit and eicosapentaenoic acid (C20:5 ?3) combined with octadecatetraenoic acid (C18:4 ?3) or linolenic acid (C18:3 ?3), respectively. The isolated compounds were tested for their cytotoxic and anti-inflammatory activity in RAW 264.7 macrophage cells. All of them inhibited NO production at non-cytotoxic concentrations. The fraction consisting of compounds 2 and 3, in a ratio of 1:1, was slightly more effective than compound 1 (IC?? of 60.06 and 65.70 µg/mL, respectively). To our knowledge, this is the first report of these compounds from F. spiralis and on their anti-inflammatory capacity. PMID:24619274

Lopes, Graciliana; Daletos, Georgios; Proksch, Peter; Andrade, Paula B; Valentão, Patrícia

2014-03-01

105

Anti-Inflammatory Potential of Monogalactosyl Diacylglycerols and a Monoacylglycerol from the Edible Brown Seaweed Fucus spiralis Linnaeus  

PubMed Central

A monoacylglycerol (1) and a 1:1 mixture of two monogalactosyl diacylglycerols (MGDGs) (2 and 3) were isolated from the brown seaweed Fucus spiralis Linnaeus. The structures were elucidated by spectroscopic means (NMR and MS) and by comparison with the literature. Compound 1 was composed of a glycerol moiety linked to oleic acid (C18:1 ?9). Compounds 2 and 3 contained a glycerol moiety linked to a galactose unit and eicosapentaenoic acid (C20:5 ?3) combined with octadecatetraenoic acid (C18:4 ?3) or linolenic acid (C18:3 ?3), respectively. The isolated compounds were tested for their cytotoxic and anti-inflammatory activity in RAW 264.7 macrophage cells. All of them inhibited NO production at non-cytotoxic concentrations. The fraction consisting of compounds 2 and 3, in a ratio of 1:1, was slightly more effective than compound 1 (IC50 of 60.06 and 65.70 µg/mL, respectively). To our knowledge, this is the first report of these compounds from F. spiralis and on their anti-inflammatory capacity. PMID:24619274

Lopes, Graciliana; Daletos, Georgios; Proksch, Peter; Andrade, Paula B.; Valentão, Patrícia

2014-01-01

106

Accumulation of perfluorinated compounds in captive Bengal tigers (Panthera tigris tigris) and African lions (Panthera leo Linnaeus) in China.  

PubMed

The accumulation of perfluorinated compounds (PFCs) in the sera of captive wildlife species Bengal tigers (Panthera tigris tigris) and African lions (Panthera leo Linnaeus) from Harbin Wildlife Park, Heilongjiang Province, in China were analyzed by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Perfluorooctanesulfonate (PFOS) was the predominant contaminant with a mean serum concentration of 1.18 ng mL(-1) in tigers and 2.69 ng mL(-1) in lions. Perfluorononanoic acid (PFNA) was the second most prevalent contaminant in both species. The composition profiles of the tested PFCs differed between tigers and lions, and the percentages of perfluorooctanoic acid (PFOA) were greater in lions than in tigers, indicating different exposures and/or metabolic capabilities between the two species. Assessments of the risk of PFC contamination to the two species were obtained by comparing measured concentrations to points of departure or toxicity reference values (TRVs). Results suggest no risk of PFOS exposure or toxicity for the two species. PMID:18789477

Li, Xuemei; Yeung, Leo Wai Yin; Taniyasu, Sachi; Lam, Paul K S; Yamashita, Nobuyoshi; Xu, Muqi; Dai, Jiayin

2008-11-01

107

The helminth fauna study of European common brown frog (Rana temporaria Linnaeus, 1758) in the Volga basin.  

PubMed

In this paper we considered information on the helminth fauna of the European common brown frog (Rana temporaria Linnaeus, 1758) from 10 regions of the Volga basin. This study includes consolidated data of different authors over the last 30 years, supplemented by the results of our own research. There are reliably known finds of 29 species of helminths: Monogenea - 1, Trematoda - 21, Nematoda - 7. Trematodes Gorgodera asiatica Pigulevsky, 1945, Paralepoderma cloacicola (Luhe, 1909), mtc. and nematodes Icosiella neglecta (Diesing, 1851) were observed for the first time in a given host on the territory of Russia and the Volga Basin. Six species of worms make the basis of helminth fauna: nematodes Rhabdias bufonis, Oswaldocruzia filiformis, Neoxysomatium brevicaudatum and Cosmocerca ornata, trematode Haplometra cylindracea and monogenea Polystoma integerrimum. These six species are the most common and widespread parasites of the brown frog. For each species of helminths there is the following information included: taxonomic position, localization, area of detection, biology, definitive hosts, geographic distribution, the degree of host-specificity. PMID:25119361

Chikhlyaev, Igor; Ruchin, Alexander

2014-09-01

108

Trace metals in flounder, Platichthys flesus (Linnaeus, 1758), and sediments from the Baltic Sea and the Portuguese Atlantic coast.  

PubMed

Trace metals were examined in the muscle tissue of flatfish species of flounder, Platichthys flesus (Linnaeus, 1758), sediments from two southern Baltic Sea sites (Gda?sk Bay and Ustecko-?ebskie as a reference) and in two areas of the Portuguese Atlantic coast (Douro River estuary and Atlantic fishing ground as a reference) to evaluate spatial differences in trace metals. Additionally, the accumulation of trace metals in flounder of different length classes was assessed. Flounder from the Gda?sk Bay area contained twofold more cupper (Cu), lead (Pb) and mercury (Hg) than did flounder from the Douro River estuary, but zinc (Zn) and cadmium (Cd) were at similar concentrations. The sediments from Gda?sk Bay contained significantly more Zn and threefold more Cd, while concentrations of Cu and Pb were twofold lower. The concentrations of metals in the sediments did not correlate with those in the flounder. Spatial differences were noted in metal concentrations in flounder from the southern Baltic Sea and the Portuguese Atlantic coast as well as within these regions, with higher concentrations in the flounder from the Baltic Sea Gda?sk Bay. The flounder in length class 25-30 cm from Gda?sk Bay contained metal concentrations comparable to those of class 40-45 cm specimens from the Atlantic coast. The accumulation of metals in flounder length classes differed in the two regions. PMID:23677750

Polak-Juszczak, Lucyna

2013-10-01

109

Dujardinascaris mormyropsis n. sp. (Nematoda: Anisakidae) from the osteoglossiform fish Mormyrops anguilloides (Linnaeus) (Mormyridae) in Central Africa.  

PubMed

A new nematode species, Dujardinascaris mormyropsis n. sp. (Anisakidae), is described from specimens found in the stomach and intestine of the cornish jack Mormyrops anguilloides (Linnaeus) (Osteoglossiformes; Mormyridae) in the Sangha River (Congo River basin) in Dzanga-Sangha Protected Areas, Central African Republic. Based on light and scanning electron microscopical examination, the new species differs from the only other congeneric species parasitising fishes in Africa, D. malapteruri (Baylis, 1923), mainly in the presence of dentigerous ridges on lips, absence of lateral caudal alae in the cloacal region, in the anteriorly curved, non-bifid distal tip of the gubernaculum and larger eggs (60-90 × 52-78 vs 45 × 30 ?m); males of D. mormyropsis are characterised by the presence of a ventral precloacal cuticular ornamentation not observed in other Dujardinascaris spp. Dujardinascaris mormyropsis and D. malapteruri also differ in the order of their fish hosts (Osteoglossiformes vs Siluriformes). Specimens previously reported as Dujardinascaris graberi Troncy, 1969, a junior synonym of D. malapteruri, from Mormyrops engystoma Boulenger in Chad belong to the new species D. mormyropsis. PMID:24711112

Moravec, František; Jirk?, Miloslav

2014-05-01

110

Ecological Status of a Margaritifera margaritifera (Linnaeus, 1758) Population at the Southern Edge of its Distribution (River Paiva, Portugal)  

NASA Astrophysics Data System (ADS)

An important population of the critically endangered pearl mussel Margaritifera margaritifera (Linnaeus, 1758) was surveyed at the edge of its southern distribution (River Paiva, Portugal). Although an earlier study suggested that this population had a very low number of individuals (<500), a narrow distribution, and was mainly comprised by old specimens our data contradict these findings. Our assessment estimated a population with probably more than 5,000 individuals distributed across 80 km of the river length. From the 32 sites surveyed, 19 contained M. margaritifera with higher abundances verified in the middle and upper parts of the river (a maximum of 78 ind. per 100 m of river stretch was recorded). The pearl mussels showed a clear preference for areas near the banks, in shallow water, sandier and gravel sediments, and a high degree of riparian vegetation cover. The population structure was skewed with a very high percentage of large (and old) animals but 3.7 % of the individuals collected were juveniles (<60 mm in length); therefore, this population can be considered functional. Environmental characterization indicated that this river is still in excellent or good condition although some areas showed deterioration due to discharge of domestic effluents. The main conservation requirements of M. margaritifera in the River Paiva include maintaining the water quality (and if possible stopping the discharge of domestic effluents), increasing riparian vegetation cover, removing several weirs to increase connectivity, and increasing trout density.

Sousa, Ronaldo; Amorim, Ângela; Sobral, Carina; Froufe, Elsa; Varandas, Simone; Teixeira, Amílcar; Lopes-Lima, Manuel

2013-11-01

111

1- O -alk-1?-enyl-2-acyl and 1- O -alkyl-2-acyl glycerophospholipids in white muscle of bonito Euthynnus pelamis (Linnaeus)  

Microsoft Academic Search

The existence of ether-linked phospholipids, including 1-O-alk-1?-enyl-2-acyl and 1-O-alkyl-2-acyl-sn-glycero-3-phosphocholines and ethanolamines in bonitoEuthynnus pelamis (Linnaeus) white muscle, was investigated by gas chromatography and gas chromatography-mass spectrometry. Chemical ionization\\u000a (iso-butane) mass spectrometry of trimethylsilyl ethers derived from the corresponding ether-linked glycerophospholipids proved\\u000a effective not only for determining molecular weights but also for structural identification based on the ions [M?R]+, [M?RO]+ and

Toshiaki Ohshima; Shun Wada; Chiaki Koizumi

1989-01-01

112

Geographic extent and chronology of the invasion of non-native lionfish (Pterois volitans [Linnaeus 1758] and P. miles [Bennett 1828]) in the Western North Atlantic and Caribbean Sea  

Microsoft Academic Search

The Indo-Pacific lionfishes (Pterois volitans (Linnaeus 1758) and P. miles (Bennett 1828): Family Scorpaenidae) are the first non-native marine fishes to establish in the Western North Atlantic. The chronology of the invasion is reported here using records from the US Geological Survey's Nonindigenous Aquatic Species database. Currently, lionfish are established off the Atlantic coast of the USA from the Florida

Pamela J. Schofield

2009-01-01

113

Análisis sobre las Unidades de Manejo (UMAs) de ciervo rojo (Cervus elaphus Linnaeus, 1758) y wapiti (Cervus canadensis (Erxleben, 1777) en México: problemática para la conservación de los ungulados nativos  

Microsoft Academic Search

Red deer, elk or wapiti are the largest cervid in Mexico and they are considered exotic species. The native subspecies in Mexico was Cervus canadensis merriami (Nelson, 1902), that was extirpated at the beginning of last century, and now it is considered extinct. Now, elk (Cervus canadensis (Erxleben, 1777) and European red deer (C. elaphus Linnaeus, 1758) have been introduced

Sonia Gallina; Luis Arturo Escobedo-Morales

114

Pycnoscelus surinamensis (Linnaeus, 1758) (Blaberoidea: Blaberidae), a cockroach with a possible association with the ant Brachymyrmex cordemoyi Forel, 1895 (Hymenoptera: Formicidae) and which may be exhibiting a domiciliation trend  

Microsoft Academic Search

In the present paper, we report on the occurrence of the cockroach Pycnoscelus surinamensis (Linnaeus, 1758) in Brachymyrmex cordemoyi Forel, 1895 nests, indicating a possible symbiosis between these two species. Also, the finding of intradomicile P. surinamensis nymphs may indicate this species is extending its habitat to human habitations, i.e. changing its ecological category from\\u000a peridomestic to domestic.

Thiago de Carvalho Moretti; Estela Maris Quirán; Daniel Russ Solis; Mônica Lanzoni Rossi; Patrícia Jacqueline Thyssen

2011-01-01

115

Rhinoceronema unicornensis gen. n., sp. n. (Cosmocercoidea: Atractidae) from Indian one horned Rhinoceros (Rhinoceros unicornis Linnaeus, 1758) captivated at the Alipore Zoological Garden, Kolkata, India.  

PubMed

During survey of nematodes from the faecal samples of Rhinoceros unicornis Linnaeus, 1758 remaining captivated in the Alipore Zoological Garden, Kolkata, India 2,500 specimens were recovered in 3 years from March, 2007 to February, 2010. After processing the specimens were identified as a member of the family Atractidae (Railliet 1917) Travassos 1919 which have 22 valid genera. The present specimens differs from all other valid atractid genera in the features of cephalic region, cup-shaped buccal cavity with a pair of teeth, structure of the oesophagus and coarse transversely striated body. A new genus Rhinoceronema has been created to accommodate the present newly erected type species R. unicornensis. A Key to the genera of family Atractidae is added. PMID:24431555

Mondal, Sagata; Manna, Buddhadeb

2013-04-01

116

Taxonomic and morphological survey of the Lygephila lusoria (Linnaeus, 1758) species-group with description of a new species (Lepidoptera, Erebidae, Toxocampinae)  

PubMed Central

Abstract The taxa of the Lygephila lusoria (Linnaeus, 1758) species-group are revised. The genital features of all known taxa are described and illustrated with special reference to the structure of vesica. The male genitalia of L. pallida pallida (Bang-Haas, 1907) are described and illustrated for the first time. L. pallida subpicata (Wiltshire, 1971) is treated here as a species, L. pallida subpicata (Wiltshire, 1971), stat. n., distinct from L. pallida. A new species, L. minima, sp. n.,from South Russia is described. Illustrations of the holotype and its genitalia are provided; a diagnostic comparison with L. pallida is given. L. alaica Remm, 1983 is included in the L. lusoria species-group for the first time. PMID:24294088

Pekarsky, Oleg

2013-01-01

117

Seasonal Distributions and Migrations of Northwest Atlantic Swordfish: Inferences from Integration of Pop-Up Satellite Archival Tagging Studies  

PubMed Central

Data sets from three laboratories conducting studies of movements and migrations of Atlantic swordfish (Xiphias gladius) using pop-up satellite archival tags were pooled, and processed using a common methodology. From 78 available deployments, 38 were selected for detailed examination based on deployment duration. The points of deployment ranged from southern Newfoundland to the Straits of Florida. The aggregate data comprise the most comprehensive information describing migrations of swordfish in the Atlantic. Challenges in using data from different tag manufacturers are discussed. The relative utility of geolocations obtained with light is compared with results derived from temperature information for this deep-diving species. The results show that fish tagged off North America remain in the western Atlantic throughout their deployments. This is inconsistent with the model of stock structure used in assessments conducted by the International Commission for the Conservation of Atlantic Tunas, which assumes that fish mix freely throughout the North Atlantic. PMID:25401964

Neilson, John D.; Loefer, Josh; Prince, Eric D.; Royer, François; Calmettes, Beatriz; Gaspar, Philippe; Lopez, Rémy; Andrushchenko, Irene

2014-01-01

118

Seasonal distributions and migrations of northwest atlantic swordfish: inferences from integration of pop-up satellite archival tagging studies.  

PubMed

Data sets from three laboratories conducting studies of movements and migrations of Atlantic swordfish (Xiphias gladius) using pop-up satellite archival tags were pooled, and processed using a common methodology. From 78 available deployments, 38 were selected for detailed examination based on deployment duration. The points of deployment ranged from southern Newfoundland to the Straits of Florida. The aggregate data comprise the most comprehensive information describing migrations of swordfish in the Atlantic. Challenges in using data from different tag manufacturers are discussed. The relative utility of geolocations obtained with light is compared with results derived from temperature information for this deep-diving species. The results show that fish tagged off North America remain in the western Atlantic throughout their deployments. This is inconsistent with the model of stock structure used in assessments conducted by the International Commission for the Conservation of Atlantic Tunas, which assumes that fish mix freely throughout the North Atlantic. PMID:25401964

Neilson, John D; Loefer, Josh; Prince, Eric D; Royer, François; Calmettes, Beatriz; Gaspar, Philippe; Lopez, Rémy; Andrushchenko, Irene

2014-01-01

119

Linnaeus University Vxj, Sweden  

E-print Network

Studies Forest and Wood Technology Forest management French General Linguistics Geography German Management Tourism Studies Woodwork #12;Types of Accommodation The majority of students in Kalmar live near

Duchowski, Andrew T.

120

The influence of depth on mercury levels in pelagic fishes and their prey  

PubMed Central

Mercury distribution in the oceans is controlled by complex biogeochemical cycles, resulting in retention of trace amounts of this metal in plants and animals. Inter- and intra-specific variations in mercury levels of predatory pelagic fish have been previously linked to size, age, trophic position, physical and chemical environmental parameters, and location of capture; however, considerable variation remains unexplained. In this paper, we focus on differences in ecology, depth of occurrence, and total mercury levels in 9 species of commercially important pelagic fish (Thunnus obesus, T. albacares, Katsuwonus pelamis, Xiphias gladius, Lampris guttatus, Coryphaena hippurus, Taractichthys steindachneri, Tetrapturus audax, and Lepidocybium flavobrunneum) and in numerous representatives (fishes, squids, and crustaceans) of their lower trophic level prey sampled from the central North Pacific Ocean. Results indicate that total mercury levels of predatory pelagic fishes and their prey increase with median depth of occurrence in the water column and mimic concentrations of dissolved organic mercury in seawater. Stomach content analysis results from this study and others indicate a greater occurrence of higher-mercury containing deeper-water prey organisms in the diets of the deeper-ranging predators, X. gladius, T. obesus, and L. guttatus. While present in trace amounts, dissolved organic mercury increases with depth in the water column suggesting that the mesopelagic habitat is a major entry point for mercury into marine food webs. These data suggest that a major determinant of mercury levels in oceanic predators is their depth of forage. PMID:19666614

Choy, C. Anela; Popp, Brian N.; Kaneko, J. John; Drazen, Jeffrey C.

2009-01-01

121

The influence of depth on mercury levels in pelagic fishes and their prey.  

PubMed

Mercury distribution in the oceans is controlled by complex biogeochemical cycles, resulting in retention of trace amounts of this metal in plants and animals. Inter- and intra-specific variations in mercury levels of predatory pelagic fish have been previously linked to size, age, trophic position, physical and chemical environmental parameters, and location of capture; however, considerable variation remains unexplained. In this paper, we focus on differences in ecology, depth of occurrence, and total mercury levels in 9 species of commercially important pelagic fish (Thunnus obesus, T. albacares, Katsuwonus pelamis, Xiphias gladius, Lampris guttatus, Coryphaena hippurus, Taractichthys steindachneri, Tetrapturus audax, and Lepidocybium flavobrunneum) and in numerous representatives (fishes, squids, and crustaceans) of their lower trophic level prey sampled from the central North Pacific Ocean. Results indicate that total mercury levels of predatory pelagic fishes and their prey increase with median depth of occurrence in the water column and mimic concentrations of dissolved organic mercury in seawater. Stomach content analysis results from this study and others indicate a greater occurrence of higher-mercury containing deeper-water prey organisms in the diets of the deeper-ranging predators, X. gladius, T. obesus, and L. guttatus. While present in trace amounts, dissolved organic mercury increases with depth in the water column suggesting that the mesopelagic habitat is a major entry point for mercury into marine food webs. These data suggest that a major determinant of mercury levels in oceanic predators is their depth of forage. PMID:19666614

Choy, C Anela; Popp, Brian N; Kaneko, J John; Drazen, Jeffrey C

2009-08-18

122

Taenia arctos n. sp. (Cestoda: Cyclophyllidea: Taeniidae) from its definitive (brown bear Ursus arctos Linnaeus) and intermediate (moose/elk Alces spp.) hosts.  

PubMed

Taenia arctos n. sp. (Cestoda: Cyclophyllidea: Taeniidae) is described from the brown bear Ursus arctos Linnaeus (definitive host) and moose/elk Alces spp. (intermediate hosts) from Finland (type-locality) and Alaska, USA. The independent status of the new species and the conspecificity of its adults and metacestodes have been recently confirmed by the mtDNA sequence data of Lavikainen et al. (2011; Parasitology International, 60, 289-295). Special reference is given to morphological differences between the new species and T. krabbei Moniez, 1879 (definitive hosts primarily canines for the latter), both of which use the moose/elk (Alces spp.) as intermediate hosts (the latter also uses Rangifer and perhaps other northern ruminants), and between the new species and T. ursina Linstow, 1893, both of which use the brown bear U. arctos as a definitive host. New morphological data are also provided for adults and cysticerci of T. krabbei. The analysis includes potentially useful morphometric features that have not been previously applied to Taenia spp. PMID:22002024

Haukisalmi, Voitto; Lavikainen, Antti; Laaksonen, Sauli; Meri, Seppo

2011-11-01

123

Molecular evidence for the occurrence of Contracaecum rudolphii A (Nematoda: Anisakidae) in shag Phalacrocorax aristotelis (Linnaeus) (Aves: Phalacrocoracidae) from Sardinia (western Mediterranean Sea).  

PubMed

Specimens of Contracaecum rudolphii Hartwich, 1964 (Nematoda: Anisakidae) from Phalacrocorax aristotelis (Linnaeus) from the Archipelago of La Maddalena (Sardinia, western Mediterranean Sea) were characterised genetically and compared with C. rudolphii A sensu D'Amelio et al. 1990 and C. rudolphii B sensu D'Amelio et al. 1990 from Phalacrocorax carbo sinensis (Blumenbach) from north-eastern Italy, and with C. rudolphii C sensu D'Amelio et al. 2007 from Phalacrocorax auritus (Lesson) from west-central Florida, USA. The sequencing of the small subunit of the mitochondrial ribosomal RNA gene (rrnS) and by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the same gene and of the internal transcribed spacers (ITS) of nuclear ribosomal DNA (rDNA) allowed the identification of all specimens of C. rudolphii from P. aristotelis as C. rudolphii A. The results confirmed that the definition of genetic markers, following the analysis of nuclear ribosomal and mitochondrial DNA, provides quick and practical diagnostic tools for the detection of the 3 sibling species of C. rudolphii. The occurrence of C. rudolphii in P. aristotelis is reported for the first time from the Mediterranean area, improving the picture of the dispersal patterns of the populations of these piscivorous birds, and confirming the existence of different and isolated populations between the North and South European waters. PMID:18571974

Farjallah, Sarra; Merella, Paolo; Ingrosso, Sofia; Rotta, Andrea; Slimane, Badreddine Ben; Garippa, Giovanni; Said, Khaled; Busi, Marina

2008-12-01

124

The migration patterns of the European flounder Platichthys flesus (Linnaeus, 1758) (Pleuronectidae, Pisces) at the southern limit of its distribution range: Ecological implications and fishery management  

NASA Astrophysics Data System (ADS)

This study aims to determine the diversity of migration patterns of the European flounder ( Platichthys flesus (Linnaeus, 1758)) present in the Minho estuary and in the adjacent coastal area (NW-Iberian Peninsula). Assessing the diversity of flounder migration patterns at the southern limit of its distribution allows the determination of characteristics of the species' ecology and provides useful information for fishery managers, since it is a regionally important estuarine fishery. An unexpected result of our study was that flounder appears to spawn in both estuarine and coastal areas and not just in coastal areas as was previously widely accepted. Our interpretation of otolith strontium distribution patterns from flounder specimens collected in the freshwater tidal area of the Minho estuary and in the lower estuary suggested that the flounders hatched in the estuary, while only 6.7% of those captured in the coastal area hatched in the coastal area. Ultimately, studies aimed at collecting larval stages and adult flounders must be made to confirm that flounders spawn in the estuary and to define new and better scientifically supported fishing policies, or simply to confirm the existing ones regarding temporal and spatial closures for each gear used in the Minho estuary.

Morais, Pedro; Dias, Ester; Babaluk, John; Antunes, Carlos

2011-02-01

125

Absorbed Dose Rate Due to Intake of Natural Radionuclides by Tilapia Fish (Tilapia nilotica,Linnaeus, 1758) Estimated Near Uranium Mining at Caetité, Bahia, Brazil  

NASA Astrophysics Data System (ADS)

The uranium mining at Caetité (Uranium Concentrate Unit—URA) is in its operational phase. Aiming to estimate the radiological environmental impact of the URA, a monitoring program is underway. In order to preserve the biota of the deleterious effects from radiation and to act in a pro-active way as expected from a licensing body, the present work aims to use an environmental protection methodology based on the calculation of absorbed dose rate in biota. Thus, selected target organism was the Tilapia fish (Tilapia nilotica, Linnaeus, 1758) and the radionuclides were: uranium (U-238), thorium (Th-232), radium (Ra-226 and Ra-228) and lead (Pb-210). As, in Brazil there are no radiation exposure limits adopted for biota the value proposed by the Department of Energy (DOE) of the United States of 3.5×103 ?Gy y-1 has been used. The derived absorbed dose rate calculated for Tilapia was 2.51×100 ?Gy y-1, that is less than 0.1% of the dose limit established by DOE. The critical radionuclide was Ra-226, with 56% of the absorbed dose rate, followed by U-238 with 34% and Th-232 with 9%. This value of 0.1% of the limit allows to state that, in the operational conditions analyzed, natural radionuclides do not represent a radiological problem to biota.

Pereira, Wagner de S.; Kelecom, Alphonse; Py Júnior, Delcy de Azevedo

2008-08-01

126

Effects of supplemental coated or crystalline methionine in low-fishmeal diet on the growth performance and body composition of juvenile cobia Rachycentron canadum (Linnaeus)  

NASA Astrophysics Data System (ADS)

We evaluated the effects of supplemental coated and crystalline methionine (Met) on the growth performance and feed utilization of juvenile cobia ( Rachycentron canadum Linnaeus) in a 60-d feeding trial. Fish groups were fed one of six isonitrogenous and isolipidic diets: 1) fishmeal control; 2) un-supplemented experimental (low-fish-meal diet deficient in Met); or 3) one of four Met diets supplemented with crystalline L-Met, cellulose-acetate-phthalate coated L-Met, acrylic-resin coated L-Met, or tripalmitin-polyvinyl alcohol coated L-Met. The test diets were fed to triplicate groups of cobia (initial body weight 5.40±0.07 g) twice a day. The weight gain and specific growth rate of the fish fed the RES diet were highest among the Met-supplemented groups and were 23.64% and 7.99%, respectively, higher than those of the fish fed with the un-supplemented experimental diet ( P<0.05). The protein efficiency ratio of the fish fed the MET diet was significantly higher than that of the fish fed the un-supplemented experimental diet and the fish in the other methionine supplementation groups ( P<0.05). Our results suggest that supplementation of crystalline Met in low-fish-meal diets promotes the growth performance of juvenile cobia.

Chi, Shuyan; Tan, Beiping; Dong, Xiaohui; Yang, Qihui; Liu, Hongyu

2014-11-01

127

Caligus solea n. sp. (Copepoda: Caligidae) parasitic on the common sole Solea solea (Linnaeus) from the north-eastern Mediterranean off the Turkish coast.  

PubMed

A new species of caligid copepod, Caligus solea n. sp., is described from the common sole Solea solea (Linnaeus) caught off the north-eastern Mediterranean coast of Turkey. Both sexes of the parasite were collected from all over the upper body surface of its host. The new species belongs to the macarovi-group of species as established by Boxshall & Gurney (Bull Br Mus (Nat Hist) (Zool), 39:161-178, 1980), with which it shares the following four characters: (i) leg 4 with two-segmented exopod, distal segment carrying three apical spines but no lateral spine; (ii) distal exopodal segment of leg 1 with three plumose setae posteriorly plus four distal margin elements, spine 1 naked, spines 2 and 3 with accessory process and spine 4 about twice length of the others; (iii) females with one-segmented abdomen while males with two-segmented abdomen; (iv) male maxilliped with myxal process opposing the tip of the subchela. However, the new species differs from its congeners within the macarovi-group in the number of sensillae on each papilla on and around the postantennal process, and also in the absence of serrations along the distal margin of the maxilla. This is the twenty-eighth species of Caligus to be reported from the Mediterranean Sea. PMID:25079813

Demirkale, Ibrahim; Özak, Argun A; Yanar, Alper; Boxshall, Geoffrey Allan

2014-09-01

128

Laboratory and field evaluation of the effects of the neonicotinoid imidacloprid on the oviposition response of Aedes (Stegomyia) aegypti Linnaeus (Diptera: Culicidae).  

PubMed

In this paper, we assessed the suitability of using the neonicotinoid imidacloprid with standard ovitraps by evaluating the ovicidal properties of imidacloprid and its influence on the oviposition response of gravid females of Aedes (Stegomyia) aegypti Linnaeus (Diptera: Culicidae). First, we calculated the imidacloprid lethal dose 99 (LD(99)) by exposing third instar larvae of the target species to different concentrations of the insecticide. Next, Ae. aegypti eggs were exposed to the imidacloprid LD(99) for 24 h and hatching inhibition was recorded. Finally, we investigated any potential repellent effect of the imidacloprid solution on the oviposition response of gravid Aedes females in field and laboratory conditions. The LD(99) obtained from larvae tests proved to be sufficient to keep any exposed eggs from hatching. No repellent effect was observed; females laid as many eggs in imidacloprid-treated ovitraps as in traps containing either clean water or temephos-treated water in both field and laboratory conditions. Our results indicate that imidacloprid is a suitable insecticide for treating ovitraps against Ae. aegypti. PMID:22241123

Antonio-Arreola, Gloria Elsa; López-Bello, Roger; Romero-Moreno, Daenna Kaori; Sánchez, Daniel

2011-12-01

129

Development and evaluation of real-time PCR assay for the detection of Babesia orientalis in water buffalo (Bubalus bubalis, Linnaeus, 1758).  

PubMed

Babesia orientalis is the causative agent of babesiosis in water buffalo (Bubalus babalis, Linnaeus, 1758). In this study, a TaqMan real-time PCR assay was developed for quantitative detection of B. orientalis in water buffalo. Hybridization probe and oligonucleotide primers were designed based on the v4 region of 18S rRNA gene. Detection limit was determined at 2 parasites. Blood samples were collected from experimentally infected water buffalo, as well as from 180 field samples, which were collected from 4 different geographical locations to the north and south of the Yangtse River. The parasite was detected by real-time PCR on day 2 until day 39 post-infection, while reverse line blot (RLB) was on day 6 until day 36 in experimentally infected water buffalo. For the results of 180 field samples, statistical analysis showed no significant difference in relative effectiveness of real-time PCR and RLB. The analysis also indicated that there was no difference in the prevalence of B. orientalis between the regions of south and north of the Yangtse River by both the real-time PCR assay and RLB detection. These results indicated that the parasite infection has spread to the north of the Yangtse River. PMID:21711103

He, Lan; Feng, Hui-Hui; Zhang, Qin-Li; Zhang, Wen-Jie; Khan, Muhanmad Kasib; Hu, Min; Zhou, Yan-Qin; Zhao, Jun-Long

2011-12-01

130

Effects of supplemental coated or crystalline methionine in low-fishmeal diet on the growth performance and body composition of juvenile cobia Rachycentron canadum (Linnaeus)  

NASA Astrophysics Data System (ADS)

We evaluated the effects of supplemental coated and crystalline methionine (Met) on the growth performance and feed utilization of juvenile cobia (Rachyc entron canadum Linnaeus) in a 60-d feeding trial. Fish groups were fed one of six isonitrogenous and isolipidic diets: 1) fishmeal control; 2) unsupplemented experimental (low-fish-meal diet deficient in Met); or 3) one of four Met diets supplemented with crystalline L-Met, cellulose-acetate-phthalate coated L-Met, acrylic-resin coated L-Met, or tripalmitinpolyvinyl alcohol coated L-Met. The test diets were fed to triplicate groups of cobia (initial body weight 5.40±0.07 g) twice a day. The weight gain and specific growth rate of the fish fed the RES diet were highest among the Met-supplemented groups and were 23.64% and 7.99%, respectively, higher than those of the fish fed with the un-supplemented experimental diet (P<0.05). The protein efficiency ratio of the fish fed the MET diet was significantly higher than that of the fish fed the un-supplemented experimental diet and the fish in the other methionine supplementation groups (P<0.05). Our results suggest that supplementation of crystalline Met in low-fish-meal diets promotes the growth performance of juvenile cobia.

Chi, Shuyan; Tan, Beiping; Dong, Xiaohui; Yang, Qihui; Liu, Hongyu

2014-07-01

131

Metazoan gill parasites of the Atlantic bluefin tuna Thunnus thynnus (Linnaeus) (Osteichthyes: Scombridae) from the Mediterranean and their possible use as biological tags.  

PubMed

The gills of 63 specimens of the Atlantic bluefin tuna Thunnus thynnus (Linnaeus) (Osteichthyes: Scombridae) from three localities of the Mediterranean (Sardinian, Tyrrhenian and Levantine Seas) were examined for metazoan parasites. The parasite fauna of T. thynnus from the Sea of Sardinia included 11 species: five didymozoid trematodes, three capsalid and one hexostomid monogeneans, and one caligid and one pseudocycnid copepods. Four didymozoids were found in fish from the Levantine Sea and only one didymozoid was recorded in fish from the Tyrrhenian Sea. Dividing the hosts into four size-groups (small, medium-sized, large and extra large), the pairwise comparison of prevalence and mean abundance of the new and literary data) showed differences according to host size. The differences in the composition of the parasitic faunas and in the prevalence of parasites, observed between the small tunas from the Tyrrhenian Sea and the medium-sized tunas from the Adriatic Sea, Levantine Sea and the North-East (NE) Atlantic Ocean, indicated that these groups form discrete units. The parasite fauna of the large tunas from the Sea of Sardinia is the richest among the bluefin tuna populations of the Mediterranean and the NE Atlantic, due to the presence of species not found elsewhere in bluefin tunas, such as Caligus coryphaenae Steenstrup et Lütken, 1861, Capsala magronum (Ishii, 1936) and C. paucispinosa (Mamaev, 1968). This fact and the prevalence of some parasites of this group (lower than those of medium-sized fish from the NE Atlantic and higher than the small and medium-sized tunas from the Mediterranean) suggest that the large-sized tuna group in the western Mediterranean is formed by Mediterranean resident tunas (poorly infected), and by tunas migrating from the Atlantic Ocean (heavily infected). PMID:24822321

Culurgioni, Jacopo; Mele, Salvatore; Merella, Paolo; Addis, Piero; Figus, Vincenza; Cau, Angelo; Karakulak, Firdes Saadet; Garippa, Giovanni

2014-04-01

132

Molecular cytogenetic analysis of the crucian carp, Carassius carassius (Linnaeus, 1758) (Teleostei, Cyprinidae), using chromosome staining and fluorescence in situ hybridisation with rDNA probes  

PubMed Central

Abstract The crucian carp Carassius carassius (Linnaeus, 1758) is a species with restricted and decreasing distribution in Europe. Six males and six females of the species from the Baltic Sea basin in Poland were examined to show sequentially CMA3/AgNO3 staining pattern, DAPI staining, and, for the first time in literature, molecular cytogenetic analysis using double-colour fluorescence in situ hybridisation (FISH) with 28S and 5S rDNA probes. The karyotype consisted of 20 m, 36 sm and 44 sta chromosomes, NF=156. The AgNO3 stained NORs were most frequently located terminally in the short arms of two sm and two sta elements, and CMA3-positive sites were also observed suggesting abundant GC-rich repetitive DNA in the regions. Other CMA3-positive sites in the short arms of six to ten sm and sta chromosomes were detected. The results based on 28S rDNA FISH confirmed the location of rDNA sites. DAPI-negative staining of NORs suggested the scarcity of AT-rich DNA in the regions. FISH with 5S rDNA probe revealed 8–14 loci (ten and 12 in respectively 49 and 29% of metaphases). They were located in two sm and eight to ten sta chromosomes and six of them were larger than others. Simultaneously, mapping of the two rDNA families on the chromosomes of C. carassius revealed that both 28S and 5S rDNA probes were located in different chromosomes. Molecular cytogenetic data of C. carassius presented here for the first time give an important insight into the structure of chromosomes of this polyploid and declining species and may be useful in its systematics.

Spoz, Aneta; Boron, Alicja; Porycka, Katarzyna; Karolewska, Monika; Ito, Daisuke; Abe, Syuiti; Kirtiklis, Lech; Juchno, Dorota

2014-01-01

133

Geographic extent and chronology of the invasion of non-native lionfish (Pterois volitans [Linnaeus 1758] and P. miles [Bennett 1828]) in the Western North Atlantic and Caribbean Sea  

USGS Publications Warehouse

The Indo-Pacific lionfishes (Pterois volitans [Linnaeus 1758] and P. miles [Bennett 1828]: Family Scorpaenidae) are the first non-native marine fishes to establish in the Western North Atlantic. The chronology of the invasion is reported here using records from the US Geological Survey's Nonindigenous Aquatic Species database. Currently, lionfish are established off the Atlantic coast of the USA from the Florida Keys to Cape Hatteras (North Carolina), the Great Antilles, Bermuda, Bahamas, Cayman Islands and Turks and Caicos. The species have been reported from only one island in the Lesser Antilles (St. Croix), but it is not yet established there. Lionfish are established in Mexico, Honduras and Costa Rica. Reports have come from the Gulf of Mexico (Florida), Belize, Panama and Colombia; although lionfish are not considered established in these localities at this time (August 2009), invasion is likely imminent.

Schofield, Pamela J.

2009-01-01

134

Sequential Isotopic Signature Along Gladius Highlights Contrasted Individual Foraging Strategies of Jumbo Squid (Dosidicus gigas)  

Microsoft Academic Search

BackgroundCephalopods play a major role in marine ecosystems, but knowledge of their feeding ecology is limited. In particular, intra- and inter-individual variations in their use of resources has not been adequatly explored, although there is growing evidence that individual organisms can vary considerably in the way they use their habitats and resources.Methodology\\/Principal FindingsUsing ?13C and ?15N values of serially sampled

Anne Lorrain; Juan Argüelles; Ana Alegre; Arnaud Bertrand; Jean-Marie Munaron; Pierre Richard; Yves Cherel

2011-01-01

135

Neotropical Monogenoidea. 57. Revision and phylogenetic position of Scleroductus Jara & Cone, 1989 (Gyrodactylidae), with descriptions of new species from the Guatemalan chulin Rhamdia guatemalensis (Günther) (Siluriformes: Heptapteridae) in Mexico and the barred sorubim Pseudoplatystoma fasciatum (Linnaeus) (Siluriformes: Pimelodidae) in Brazil.  

PubMed

The diagnosis of Scleroductus Jara & Cone, 1989 (Gyrodactylidae) is amended to include viviparous species having a large spine associated with the ejaculatory duct within the male copulatory organ, two band-like projections originating from the posterior margin of the superficial bar and hooks evenly distributed along the haptoral margins. Two new species of Scleroductus are described from the external surfaces of siluriform fishes of Mexico and Brazil: Scleroductus lyrocleithrum n. sp. from the Guatemalan chulin Rhamdia guatemalensis (Günther) (Heptapteridae) in a cenote on the Yucatan Peninsula, Mexico; and Scleroductus angularis n. sp. from the barred sorubim Pseudoplatystoma fasciatum (Linnaeus) (Pimelodidae) in the Rio Tocantins, Tocantins, Brazil. Scleroductus sp. is recorded from the jundiá Rhamdia quelen (Quoy & Gaimard) (Heptapteridae) in the Iguaçu drainage of southern Brazil. Phylogenetic analyses of 18S rDNA suggest that Scleroductus (represented in the analyses by Scleroductus sp. from R. quelen), Ieredactylus Schelkle, Paladini, Shinn, King, Johnson, van Oosterhout, Mohammed & Cable, 2011 (represented by its type-species) and Gyrodactyloides Bychowsky, 1947 (represented by G. bychowskii Al'bova, 1948) comprise the sister taxon to the remaining viviparous gyrodactylids, with Scleroductus serving as the sister group to Ieredactylus + Gyrodactyloides. The clade containing the three taxa is supported by two putative synapomorphic features: two band-like projections (R1 sclerites) originating from the posterior margin of the superficial bar and a large spine associated with the ejaculatory duct within the male copulatory organ. PMID:23263939

Kritsky, Delane C; Boeger, Walter A; Mendoza-Franco, Edgar F; Vianna, Rogério T

2013-01-01

136

The ability of the blowflies Calliphora vomitoria (Linnaeus), Calliphora vicina (Rob-Desvoidy) and Lucilia sericata (Meigen) (Diptera: Calliphoridae) and the muscid flies Muscina stabulans (Fallén) and Muscina prolapsa (Harris) (Diptera: Muscidae) to colonise buried remains.  

PubMed

The blowflies Calliphora vomitoria (Linnaeus), Calliphora vicina (Rob-Desvoidy) and Lucilia sericata (Meigen) exhibited a limited ability to colonise pig liver baits buried in loose soil. Calliphora vomitoria colonised baits buried at 5 cm but no deeper whilst C. vicina and L. sericata colonised remains at 10 cm but not at 20 cm. The baits were colonised by larvae hatching from eggs laid on the surface of the soil. Both C. vomitoria and L. sericata were able to develop from eggs through to adulthood on baits that were infested before being buried and the larvae developed at similar rates and pupariated at similar depths to larvae developing on baits on the soil surface. The muscid flies Muscina stabulans (Fallén) and Muscina prolapsa (Harris) colonised remains buried in loose soil at a depth of 40 cm and even when presented with baits on the soil surface their larvae tended to remain in the soil beneath the baits. In compacted soil, M. stabulans colonised baits buried at 10 cm but M. prolapsa only colonised those buried at 5 cm. In both muscid species, the adult flies were instantly attracted to feed on fresh blood and laid eggs in the soil above buried baits within 30min of them being introduced into the cages. The adult muscid flies did not attempt to burrow into the soil and their larvae colonised the baits from eggs laid on the soil surface. This information could be useful in determining whether a body was stored above ground before being buried and/or the time since burial occurred. PMID:21071161

Gunn, Alan; Bird, Jerry

2011-04-15

137

Massive Consumption of Gelatinous Plankton by Mediterranean Apex Predators  

PubMed Central

Stable isotopes of carbon and nitrogen were used to test the hypothesis that stomach content analysis has systematically overlooked the consumption of gelatinous zooplankton by pelagic mesopredators and apex predators. The results strongly supported a major role of gelatinous plankton in the diet of bluefin tuna (Thunnus thynnus), little tunny (Euthynnus alletteratus), spearfish (Tetrapturus belone) and swordfish (Xiphias gladius). Loggerhead sea turtles (Caretta caretta) in the oceanic stage and ocean sunfish (Mola mola) also primarily relied on gelatinous zooplankton. In contrast, stable isotope ratios ruled out any relevant consumption of gelatinous plankton by bluefish (Pomatomus saltatrix), blue shark (Prionace glauca), leerfish (Lichia amia), bonito (Sarda sarda), striped dolphin (Stenella caerueloalba) and loggerhead sea turtles (Caretta caretta) in the neritic stage, all of which primarily relied on fish and squid. Fin whales (Balaenoptera physalus) were confirmed as crustacean consumers. The ratios of stable isotopes in albacore (Thunnus alalunga), amberjack (Seriola dumerili), blue butterfish (Stromaeus fiatola), bullet tuna (Auxis rochei), dolphinfish (Coryphaena hyppurus), horse mackerel (Trachurus trachurus), mackerel (Scomber scombrus) and pompano (Trachinotus ovatus) were consistent with mixed diets revealed by stomach content analysis, including nekton and crustaceans, but the consumption of gelatinous plankton could not be ruled out completely. In conclusion, the jellyvorous guild in the Mediterranean integrates two specialists (ocean sunfish and loggerhead sea turtles in the oceanic stage) and several opportunists (bluefin tuna, little tunny, spearfish, swordfish and, perhaps, blue butterfish), most of them with shrinking populations due to overfishing. PMID:22470416

Cardona, Luis; Alvarez de Quevedo, Irene; Borrell, Assumpcio; Aguilar, Alex

2012-01-01

138

Massive consumption of gelatinous plankton by Mediterranean apex predators.  

PubMed

Stable isotopes of carbon and nitrogen were used to test the hypothesis that stomach content analysis has systematically overlooked the consumption of gelatinous zooplankton by pelagic mesopredators and apex predators. The results strongly supported a major role of gelatinous plankton in the diet of bluefin tuna (Thunnus thynnus), little tunny (Euthynnus alletteratus), spearfish (Tetrapturus belone) and swordfish (Xiphias gladius). Loggerhead sea turtles (Caretta caretta) in the oceanic stage and ocean sunfish (Mola mola) also primarily relied on gelatinous zooplankton. In contrast, stable isotope ratios ruled out any relevant consumption of gelatinous plankton by bluefish (Pomatomus saltatrix), blue shark (Prionace glauca), leerfish (Lichia amia), bonito (Sarda sarda), striped dolphin (Stenella caerueloalba) and loggerhead sea turtles (Caretta caretta) in the neritic stage, all of which primarily relied on fish and squid. Fin whales (Balaenoptera physalus) were confirmed as crustacean consumers. The ratios of stable isotopes in albacore (Thunnus alalunga), amberjack (Seriola dumerili), blue butterfish (Stromaeus fiatola), bullet tuna (Auxis rochei), dolphinfish (Coryphaena hyppurus), horse mackerel (Trachurus trachurus), mackerel (Scomber scombrus) and pompano (Trachinotus ovatus) were consistent with mixed diets revealed by stomach content analysis, including nekton and crustaceans, but the consumption of gelatinous plankton could not be ruled out completely. In conclusion, the jellyvorous guild in the Mediterranean integrates two specialists (ocean sunfish and loggerhead sea turtles in the oceanic stage) and several opportunists (bluefin tuna, little tunny, spearfish, swordfish and, perhaps, blue butterfish), most of them with shrinking populations due to overfishing. PMID:22470416

Cardona, Luis; Álvarez de Quevedo, Irene; Borrell, Assumpció; Aguilar, Alex

2012-01-01

139

Ventricular myocardial architecture in marine fishes.  

PubMed

The fiber architecture of the ventricular myocardium has been studied in elasmobranch (Isurus oxyrhinchus, Galeorhinus galeus, Prionace glauca) and teleost (Xiphias gladius, Thunnus thynnus, Thunnus alalunga) fish species with hearts displaying mixed types of ventricular musculature (compact and trabecular). In all cases, the compact myocardium is organized in layers of fiber bundles with an orderly arrangement within the ventricular walls. The number of these layers appears to be dependent on the relative thickness of the compact myocardium. Differences in the pattern of myocardial fiber arrangement were observed among the different fish species. In elasmobranchs the compact myocardium at the level of the atrioventricular orifice is continuous with the trabeculated myocardium. Furthermore, in elasmobranchs the trabeculated myocardium displays a precise arrangement in arcuate trabeculae running from the auriculoventricular to the conoventricular orifices. In teleosts, the compact myocardium is independent of the trabeculated myocardium and a large number of fibers insert into the bulboventricular fibrous ring. The trabeculated myocardium in these species displays an anarchic arrangement except at the level of the bulboventricular orifice, where the fibers tend to be aligned longitudinally, also being inserted into the fibrous ring. Minor differences, consisting mainly of the presence of extra bundles of fibers, were also observed among different individuals of the same species. The possible relationship between myocardial fiber architecture and ventricular shape is discussed. PMID:3578842

Sanchez-Quintana, D; Hurle, J M

1987-03-01

140

Warm eyes provide superior vision in swordfishes.  

PubMed

Large and powerful ocean predators such as swordfishes, some tunas, and several shark species are unique among fishes in that they are capable of maintaining elevated body temperatures (endothermy) when hunting for prey in deep and cold water . In these animals, warming the central nervous system and the eyes is the one common feature of this energetically costly adaptation . In the swordfish (Xiphias gladius), a highly specialized heating system located in an extraocular muscle specifically warms the eyes and brain up to 10 degrees C-15 degrees C above ambient water temperatures . Although the function of neural warming in fishes has been the subject of considerable speculation , the biological significance of this unusual ability has until now remained unknown. We show here that warming the retina significantly improves temporal resolution, and hence the detection of rapid motion, in fast-swimming predatory fishes such as the swordfish. Depending on diving depth, temporal resolution can be more than ten times greater in these fishes than in fishes with eyes at the same temperature as the surrounding water. The enhanced temporal resolution allowed by heated eyes provides warm-blooded and highly visual oceanic predators, such as swordfishes, tunas, and sharks, with a crucial advantage over their agile, cold-blooded prey. PMID:15649365

Fritsches, Kerstin A; Brill, Richard W; Warrant, Eric J

2005-01-11

141

Contribution of cephalopod prey to the diet of large pelagic fish predators in the central North Atlantic Ocean  

NASA Astrophysics Data System (ADS)

Trophic studies documenting the importance of cephalopod prey for large pelagic fish predators have been performed recently for open ocean ecosystems in the Pacific and Indian oceans, but similar data for the central North Atlantic Ocean have been lacking. A series of longline sampling cruises targeting large pelagic fish species was undertaken in the central North Atlantic Ocean in 2001-2002, and stomach samples were analyzed from a variety of tuna, shark, and billfish species to help fill this data gap. Stomach samples were collected from nine species (n=170 non-empty stomachs), with the majority of stomachs from Atlantic swordfish (Xiphias gladius; n=69), yellowfin tuna (Thunnus albacares; n=31), and albacore tuna (Thunnus alalunga; n=28). Ommastrephid squids were the most ubiquitous prey group across predator species and sampling years. Secondary cephalopod prey included octopods, histioteuthids, and architeuthids. Mesopelagic fishes and Sargassum-associated fishes were also identified as important prey. Diet composition varied spatially and prey size increased with predator size for swordfish and yellowfin tuna. Our results support findings in other ocean basins that demonstrate the importance of squid to large pelagic fishes and highlight the need for more research on their ecological and biophysical dynamics.

Logan, John M.; Toppin, Rebecca; Smith, Sean; Galuardi, Benjamin; Porter, Julie; Lutcavage, Molly

2013-10-01

142

Larval assemblages of large and medium-sized pelagic species in the Straits of Florida  

NASA Astrophysics Data System (ADS)

Critical gaps in our understanding of the distributions, interactions, life histories and preferred habitats of large and medium-size pelagic fishes severely constrain the implementation of ecosystem-based, spatially structured fisheries management approaches. In particular, spawning distributions and the environmental characteristics associated with the early life stages are poorly documented. In this study, we consider the diversity, assemblages, and associated habitat of the larvae of large and medium-sized pelagic species collected during 2 years of monthly surveys across the Straits of Florida. In total, 36 taxa and 14,295 individuals were collected, with the highest diversity occurring during the summer and in the western, frontal region of the Florida Current. Only a few species (e.g. Thunnus obesus, T. alalunga, Tetrapturus pfluegeri) considered for this study were absent. Small scombrids (e.g. T. atlanticus, Katsuwonus pelamis, Auxis spp.) and gempylids dominated the catch and were orders of magnitude more abundant than many of the rare species (e.g. Thunnus thynnus,Kajikia albida). Both constrained (CCA) and unconstrained (NMDS) multivariate analyses revealed a number of species groupings including: (1) a summer Florida edge assemblage (e.g. Auxis spp., Euthynnus alleterattus, Istiophorus platypterus); (2) a summer offshore assemblage (e.g. Makaira nigricans, T. atlanticus, Ruvettus pretiosus, Lampris guttatus); (3) an ubiquitous assemblage (e.g. K. pelamis, Coryphaena hippurus, Xiphias gladius); and (4) a spring/winter assemblage that was widely dispersed in space (e.g. trachipterids). The primary environmental factors associated with these assemblages were sea-surface temperature (highest in summer-early fall), day length (highest in early summer), thermocline depth (shallowest on the Florida side) and fluorescence (highest on the Florida side). Overall, the results of this study provide insights into how a remarkable diversity of pelagic species spatially and temporally partition spawning within a region that is characterized by dynamic oceanography and strong habitat gradients.

Richardson, David E.; Llopiz, Joel K.; Guigand, Cedric M.; Cowen, Robert K.

2010-07-01

143

Mercury content in commercial pelagic fish and its risk assessment in the Western Indian Ocean.  

PubMed

As top predators of pelagic food webs, large fish naturally bioaccumulate mercury (Hg). Determining Hg burdens in commercialized fish is essential considering the concern about effects of contaminants on human health and the legal thresholds that are therefore set for local consumption and/or exportation. Total Hg levels were measured in the muscular tissue of 183 fish of five commercially important species from the tropical zone of the Western Indian Ocean. All individuals were measured and sexed in order to study the impregnation of Hg with size and sex within each species. Values of Hg found in this part of the Indian Ocean were comparable to Hg in muscular tissue of the same species studied in other areas. The highest Hg levels were noted in Swordfish (Xiphias gladius) caught in waters surrounding Reunion Island (3.97+/-2.67 microg g(-1) dry weight). Following the Swordfish, in decreasing order of Hg content, were the Yellowfin Tuna (Thunnus albacares) and the Skipjack (Katsuwonus pelamis), then the Common Dolphinfish (Coryphaena hippurus) and the Wahoo (Acanthocybium solandri). In the North of the Mozambique Channel, Swordfish had higher Hg levels than Yellowfin Tunas, and Dolphinfish exhibited intermediate Hg levels. The size of a fish was a determining factor of its Hg burden, as was the species. Differences in size-normalized Hg levels were observed between the two study zones for Swordfish and Common Dolphinfish. Sex, in contrast, did not influence Hg levels suggesting that females and males have similar feeding habits. The muscular Hg levels presented here suggest that consumers of fish originating from the Western Indian Ocean should limit themselves to one Swordfish based meal per week, or one fish meal a day if they choose to eat tuna or Common Dolphinfish. PMID:16580709

Kojadinovic, Jessica; Potier, Michel; Le Corre, Matthieu; Cosson, Richard P; Bustamante, Paco

2006-08-01

144

Feeding ecology of pelagic fish larvae and juveniles in slope waters of the Gulf of Mexico.  

PubMed

Stable isotope ratios of carbon (delta13C) and nitrogen (delta15N) were used to investigate feeding patterns of larval and early juvenile pelagic fishes in slope waters of the Gulf of Mexico. Contribution of organic matter supplied to fishes and trophic position within this pelagic food web was estimated in 2007 and 2008 by comparing dietary signatures of the two main producers in this ecosystem: phytoplankton [based on particulate organic matter (POM)] and Sargassum spp. Stable isotope ratios of POM and pelagic Sargassum spp. were significantly different from one another with delta13C values of POM depleted by 3-6 per thousand and delta15N values enriched by 2 relative to Sargassum spp. Stable isotope ratios were significantly different among the five pelagic fishes examined: blue marlin Makaira nigricans, dolphinfish Coryphaena hippurus, pompano dolphinfish Coryphaena equiselis, sailfish Istiophorus platypterus and swordfish Xiphias gladius. Mean delta13C values ranged almost 2 among fishes and were most depleted in I. platypterus. In addition, mean delta15N values ranged 4-5 with highest mean values found for both C. hippurus and C. equiselis and the lowest mean value for M. nigricans during both years. Increasing delta13C or delta15N with standard length suggested that shifts in trophic position and diet occurred during early life for several species examined. Results of a two-source mixing model suggest approximately an equal contribution of organic matter by both sources (POM=55%; pelagic Sargassum spp.=45%) to the early life stages of pelagic fishes examined. Contribution of organic matter, however, varied among species, and sensitivity analyses indicated that organic source estimates changed from 2 to 13% for a delta(13)C fractionation change of +/-0.25 per thousand or a delta15N fractionation change of +/-1.0 per thousand relative to original fractionation values. PMID:20738644

Wells, R J D; Rooker, J R

2009-11-01

145

Prediction of fishing effort distributions using boosted regression trees.  

PubMed

Concerns about bycatch of protected species have become a dominant factor shaping fisheries management. However, efforts to mitigate bycatch are often hindered by a lack of data on the distributions of fishing effort and protected species. One approach to overcoming this problem has been to overlay the distribution of past fishing effort with known locations of protected species, often obtained through satellite telemetry and occurrence data, to identify potential bycatch hotspots. This approach, however, generates static bycatch risk maps, calling into question their ability to forecast into the future, particularly when dealing with spatiotemporally dynamic fisheries and highly migratory bycatch species. In this study, we use boosted regression trees to model the spatiotemporal distribution of fishing effort for two distinct fisheries in the North Pacific Ocean, the albacore (Thunnus alalunga) troll fishery and the California drift gillnet fishery that targets swordfish (Xiphias gladius). Our results suggest that it is possible to accurately predict fishing effort using < 10 readily available predictor variables (cross-validated correlations between model predictions and observed data -0.6). Although the two fisheries are quite different in their gears and fishing areas, their respective models had high predictive ability, even when input data sets were restricted to a fraction of the full time series. The implications for conservation and management are encouraging: Across a range of target species, fishing methods, and spatial scales, even a relatively short time series of fisheries data may suffice to accurately predict the location of fishing effort into the future. In combination with species distribution modeling of bycatch species, this approach holds promise as a mitigation tool when observer data are limited. Even in data-rich regions, modeling fishing effort and bycatch may provide more accurate estimates of bycatch risk than partial observer coverage for fisheries and bycatch species that are heavily influenced by dynamic oceanographic conditions. PMID:24640535

Soykan, Candan U; Eguchi, Tomoharu; Kohin, Suzanne; Dewar, Heidi

2014-01-01

146

Pelagic cephalopods in the western Indian Ocean: New information from diets of top predators  

NASA Astrophysics Data System (ADS)

Using a combination of diverse large predatory fishes and one seabird, we collected information on the cephalopod fauna of the western Indian Ocean. We analyzed the stomach contents of 35 fishes representing ten families (Xiphiidae, Istiophoridae, Scombridae, Carangidae, Coryphaenidae, Alepisauridae, Dasyatidae, Carcharhinidae, Alopiidae and Sphyrnidae) and of the sooty tern Onychoprion fuscata of the Mozambique Channel from 2000 to 2010. Both fresh and accumulated beaks were used for identifying cephalopod prey. Cephalopods were important prey for twelve predators; swordfish Xiphias gladius had the highest cephalopod proportion; sooty tern (O. fuscata) and bigeye tuna (Thunnus obesus) had high proportions too. We recovered 23 cephalopod families and identified 38 species. Ten species from four Teuthida families (Ommastrephidae, Onychoteuthidae, Histioteuthidae and Ancistrocheiridae) and two Octopoda families (Argonautidae and Bolitaenidae) occurred very frequently in the stomach contents, while Sepiida were rare. Ommastrephidae were the most cephalopod food sources: the purpleback flying squid Sthenoteuthis oualaniensis was the most prevalent prey by far, Ornithoteuthis volatilis was important for eleven predators and few but large specimens of the neon flying squid Ommastrephes bartramii were recovered in the stomachs of swordfish in the Indian South Subtropical Gyre province only. Predators' groups were identified based on cephalopod prey composition, on depth in which they forage, and on prey size. Surface predators' diets were characterized by lower cephalopod diversity but greater average numbers of cephalopod prey, whereas the deep-dwelling predators (swordfish and bigeye tuna) preyed on larger specimens than surface predators (O. fuscata or yellowfin tunas Thunnus albacares). Our findings emphasized the usefulness of a community of marine predators to gain valuable information on the biology and the distribution of the cephalopod forage fauna that are discussed with regard to biogeographic province, marine predator, fishing gear to catch the large pelagic fishes, and size of the beaks recovered in the stomachs.

Ménard, Frédéric; Potier, Michel; Jaquemet, Sébastien; Romanov, Evgeny; Sabatié, Richard; Cherel, Yves

2013-10-01

147

Ammonium excretion in two benthic cnidarians: Alcyonium digitatum (Linnaeus, 1758) and Urticina felina (Linnaeus, 1767)  

NASA Astrophysics Data System (ADS)

As part of an evaluation of nitrogen fluxes between the water column and a macrobenthic community of the Strait of Dover (eastern English Channel), ammonium excretion was measured throughout the year in two common cnidarians (the octocoral Alcyonium digitatum and the sea anemone Urticina felina) which together accounted for 37% of the biomass. Mean ammonium excretion rates were 6.48 (±2.44 s.d.) ?g N g -1 h -1 (ash-free dry weight) for A. digitatum and 4.12 (±l.38 s.d.) ?g N g -1 h -1 for U. felina. Seasonal variations were observed in the excretion of A. digitatum, whereas such variations were less pronounced in U. felina. These trends are discussed in relation to temperature, food availability, nutritional state and nutritional habits of the two species. The results of this and a previous study indicate a nitrogen production of 18.9 g N m -2 y -1 for the entire benthic community.

Migné, A.; Davoult, D.

1997-05-01

148

The Status of Endangered Whales: An Overview HOWARD W. BRAHAM  

E-print Network

, Balaenoptera musculus (Linnaeus, 1758); fin whale, B. physalus (Linnaeus, 1758); sei whale, B. borealis Lesson, 1776); bowhead whale, B. mysticetus Linnaeus, 1758; and sperm whale, Physeter macrocephalus (Linnaeus

149

Cytoplasmic male killing elements in Adalia bipunctata (Linnaeus) (Coleoptera: Coccinellidae)  

Microsoft Academic Search

A wild sample of Adalia bipunctata larvae and pupae were collected from Surrey, and F1 virgin adults mated. The sex ratio produced by these pairs was found be be variable, 22 pairs produced a sex ratio consistent with a 1:1 sex ratio, but four produced a strong female bias. Daughters and males from biased broods were mated to adults from

Gregory D D Hurst; Michael E N Majerus; Linda E Walker

1992-01-01

150

Recursively invoking Linnaeus: A Taxonomy for Naming Systems  

E-print Network

Naming is a central element of a distributed or network system design. Appropriate design choices are central. This paper explores a taxonomy of naming systems, and engineering tradeoffs as an aid to the namespace designer. ...

Sollins, Karen R.

2002-03-01

151

Diurnal patterns of skeleton formation in Pocillopora damicornis (Linnaeus)  

NASA Astrophysics Data System (ADS)

Scanning, transmission and X-ray microanalytical electron microscopy were used to investigate the skeleton, organic matrix and calicoblastic ectoderm of the reef coral Pocillopora damicornis over a diurnal cycle. All skeletal surfaces, both during day and hight, are “fasciculate” except for skeletal spines on the branch tip apex at night where small (0.5 ?m) fusiform crystals are deposited. X-ray microanalysis shows that the fusiform crystals and needle-shaped crystals that compose the fasciculi are distinct forms of calcium carbonate. Demineralization of the skeleton reveals an organic matrix with two components which are related to the formation of fusiform crystals and fasciculi. During the day the calicoblastic ectoderm overlying all skeletal surfaces is 1 3 ?m thick. At night ultrastructural evidence suggests that skeletal deposition occurs only on those skeletal spines at the branch tip apex which are growing parallel with the branch growth axis. The calicoblastic ectoderm overlying apical skeletal spines at night shows a greater degree of cellular activity, and is thicker, than calicoblastic ectoderm overlying both other skeletal surfaces at night (<8 ?m cf. >6 ?m) and all skeletal surfaces during the day (<8 ?m cf. >3 ?m). The deposition of fusiform crystals on skeletal spines at the branch tip apex is proposed to promote deposition of fasciculi during the day, relative to other skeletal surfaces, providing a mechanism determining apical growth of branch tips. The results are discussed with respect to previous concepts of skeletal deposition in scleractinian corals.

Le Tissier, Martin D'a. A.

1988-11-01

152

KTH ACCESS is a Linnaeus Centre Young people are the  

E-print Network

transportation systems, active buildings, and smart power grids. Home-based health care, wireless manufacturing;#12;Or envision a network that communicates with cars on the highway to coordinate the flow of traffic

Lagergren, Jens

153

Fossil Macaca nemestrina ( Linnaeus , 1766) from Java, Indonesia  

Microsoft Academic Search

This is a description of the fossil macaque specimen registered as G. M. B. K 102 at the Geological Museum in Bandung. It\\u000a is consisted of a left half maxilla and a mandible. The fossils are assigned toMacaca nemestrina (L., 1766) being a large macaque with long mandibular symphysis, big canines and marked lateral flares in molars. They were\\u000a unearthed

Mitsuru Aimi

1981-01-01

154

The cutlassfish, Trichiurus lepturus Linnaeus 1758, occurs throughout trop-  

E-print Network

, the Yellow Sea, the East China Sea, and the South China Sea (Jiang et al., 1991), and about 15% of the catch on northern pop- ulations in the East China Sea, the Yellow Sea, and the Bo Hai. Similar work on populations (Wang et al., 1992, 1993, 1994). Populations of T. lepturus in the Bo Hai, the Yellow Sea, and the East

155

Geographic variation in Elaphe guttata (Linnaeus) (Serpentes: Colubridae  

E-print Network

to the synonymy of ~E1 he ~~1 and E. laeta to the synonymy of E. ~o . He pointed out that the type of S. ~1 etus is a )uvenile (45. 7 cm in total length) and that young E. obsoleta are very similar to E. ~emor i. The following year, Dowling (1952a) designated... in Utah and western Colorado represents a distinct race, E. laeta intermontanus. Dowling (1951a, b) placed this 21 for in *he synonymy of E. E ttat ~em i. Neill (1949) remarked on pattern variation in corn snakes in the eastern United States...

Thomas, Robert Allen

2012-06-07

156

Polycyclic aromatic hydrocarbons in clams Ruditapes decussatus (Linnaeus, 1758).  

PubMed

The concentration of sixteen individual polycyclic aromatic hydrocarbons (PAHs) was measured in the clam Ruditapes decussatus whole soft tissues from several places of the Ria Formosa lagoon (Portugal). Total PAH (tPAH) concentrations were higher in the summer (August) and winter (January) than in the other months and the distribution pattern of the individual PAHs was generally dominated by the 4 aromatic ring PAHs, followed by the 2 + 3 aromatic rings PAHs. Benzo[a]anthracene and acenaphthene were the most representative PAHs of the two fractions. Principal components analysis (PCA) revealed that, in the Ria Formosa, seasonal variations are more important than spatial variations, due to changes in PAH source. These sources ranged from petrogenic to pyrolytic or a mixture of both. The origin of clam PAHs was also assessed by partial least squares (PLS) analysis using nineteen different PAH signatures, taken from the literature. It was possible to identify boat traffic, especially in the summer, as one of the most relevant PAH sources to the Ria Formosa. The influence of boat traffic was revealed by several signatures including diesel soot, oil and weathered oil and a mixture of different individual PAHs usually found in harbour sediments. Other relevant sources included combustion of organic matter such as forest fires and diverse domestic activities, occurring mainly in the summer. Most of the clams were considered safe for human consumption, except for some point samples, which presented unusually high PAH concentrations, suggesting the need for a regular survey of PAHs in clam tissues. PMID:17285162

Barreira, Luísa A; Mudge, Stephen M; Bebianno, Maria J

2007-02-01

157

[A report of ectoparasite Piscicola geometra (Linnaeus, 1761) (Hirudinea: Rhynchobdellida) on roach (Rutilus rutilus (Linnaeus, 1758)) from Uluabat Lake].  

PubMed

An ectoparasite leech Piscicola geometra were found on female roach (Rutilus rutilus) between the anus and lateral line during the biometric measurements for the purpose of monitoring the fish population in Uluabat Lake. P. geometra was previously reported on Carassius gibelio and Tinca tinca from Lake Uluabat. It was understood with this case report that R. rutilus also is a host fish for P. geometra in Uluabat Lake. PMID:22198920

Ceylan, Mustafa; Boyac?, Yunus Ömer; Meke, Turgay; ?nceo?lu, Ha?im; Kara, Alparslan

2011-01-01

158

Microwear Analyse am pleistozänen Gulo gulo (Linnaeus, 1758) und pleistozänen Canis lupus Linnaeus, 1758 aus Österreich und Tschechien.  

E-print Network

??Im Zuge dieser Arbeit wurden die Zähne der Brechschere von Carnivoren mithilfe der Microwear-Methode untersucht. Diese beinhalten heutige Vertreter der Familien der Mustelidae, Mephitidae und… (more)

Pychner, Sarina Felicitas

2013-01-01

159

[Digenea of Haliaeetus albicilla (Linnaeus, 1758) and Pandion haliaetus (Linnaeus, 1758) from middle and north-western Poland].  

PubMed

In 2003-2008 eight white-tailed eagles and two ospreys from middle and north-western Poland were examined for the presence of parasites. Nine birds were infected with 5 digenean species: Conodiplostomum perlatum, Paracoenogonimus ovatus, Strigeafalconis, Metorchis crassiusculus and Nematostrigea serpens. M. crassiusculus was found for the first time in an eagle from Poland. PMID:19338229

Kalisi?ska, Elzbieta; Rzad, Izabella; Sitko, Jilji; Kavetska, Katarzyna M; Królaczyk, Katarzyna; Budis, Halina

2008-01-01

160

Perfluorooctanesulfonate and related fluorinated hydrocarbons in marine mammals, fishes, and birds from coasts of the Baltic and the Mediterranean Seas.  

PubMed

Perfluorooctanesulfonate (PFOS; C8F17SO3-), perfluorooctanesulfonamide (FOSA; C8F17SO2NH2), perfluorohexanesulfonate (PFHxS; C6F13SO3-), and perfluorooctanoate (PFOA; C7F15CO2-) were detected in 175 samples of liver and blood of bluefin tuna (Thunnus thynnus), swordfish (Xiphias gladius), common cormorants (Phalacrocorax carbo), bottlenose dolphins (Tursiops truncatus), striped dolphins (Stenella coeruleoalba), common dolphins (Delphinus delphi), fin whales (Balenoptera physalus), and long-finned pilot whales (Globicephala melas) from the Italian coast of the Mediterranean Sea and in livers of ringed seals (Phoca hispida), gray seals (Halichoerus grypus), white-tailed sea eagles (Haliaeetus albicilla), and Atlantic salmon (Salmo salar) from coastal areas of the Baltic Sea. PFOS was detected in all of the wildlife species analyzed. Concentrations of PFOS in blood decreased in order of bottlenose dolphins > bluefin tuna > swordfish. Mean PFOS concentrations (61 ng/ g, wet wt) in cormorant livers collected from Sardinia Island in the Mediterranean Sea were less than the concentrations of PFOA (95 ng/g, wetwt). PFOS concentrations in cormorant livers were significantly correlated with those of PFOA. FOSA was found in 14 of 19 livers or blood samples of marine mammals from the Mediterranean Sea. The highest concentration of 878 ng FOSA/g, wet wt, was found in the liver of a common dolphin. Livers of ringed and gray seals from the Bothnian Bay in the Baltic Sea contained PFOS concentrations ranging from 130 to 1,100 ng/g, wet wt. No relationships between PFOS concentrations and ages of ringed or gray seals were observed. Concentrations of PFOS in livers of seals were 5.5-fold greater than those in corresponding blood. A significant positive correlation existed between the PFOS concentrations in liver and blood, which indicates that blood can be used for nonlethal monitoring of PFOS. Trend analysis of PFOS concentrations in livers of white-tailed sea eagles collected from eastern Germany and Poland since 1979 indicated an increase in concentrations during the 1990s. Livers of Atlantic salmons did not contain quantifiable concentrations of any of the fluorochemicals monitored. PFOS is a widespread contaminant in wildlife from the Baltic and the Mediterranean Seas, while FOSA and PFOA were detected only in certain locations indicating their sporadic spatial distribution. PMID:12188342

Kannan, Kurunthachalam; Corsolini, Simonetta; Falandysz, Jerzy; Oehme, Günter; Focardi, Silvano; Giesy, John P

2002-08-01

161

Propulsion efficiency and cost of transport for copepods: a hydromechanical model of crustacean swimming  

Microsoft Academic Search

In the absence of direct measurement, costs of locomotion to small swimming Crustacea (Pleuromamma xiphias (Calanoida) was analyzed by extrapolating model parameters from data available in the literature. The model predictions agree well with empirical observations reported for larger crustaceans, in that swimming for copepods is relatively costly. The ratio of active to standard metabolism for P. xiphias was >3.

M. J. Morris; G. Gust; J. J. Torres

1985-01-01

162

7 CFR 360.200 - Designation of noxious weeds.  

Code of Federal Regulations, 2013 CFR

... Yuncker Cuscuta dentatasquamata Yuncker Cuscuta denticulata Engelmann Cuscuta epilinum Weihe Cuscuta epithymum (Linnaeus) Linnaeus Cuscuta erosa Yuncker Cuscuta europaea Linnaeus Cuscuta exaltata Engelmann...

2013-01-01

163

Appendix 1: Checklist of moths species including to the study. Genus Species Author and year of description Family Guild  

E-print Network

(Linnaeus, 1758) Noctuidae grassland (steppe and meadow) species Acronicta aceris (Linnaeus, 1758) Noctuidae forest species feeding on trees/ shrubs Acronicta alni (Linnaeus, 1767) Noctuidae forest species feeding Acronicta leporina (Linnaeus, 1758) Noctuidae forest-steppe species Acronicta megacephala (Denis et

Kratochvíl, Lukas

164

THE SUBFAMILY CRIOCERINAE OF TURKEY (COLEOPTERA: CHRYSOMELIDAE) WITH TWO NEW RECORDS AND ZOOGEOGRAPHICAL REMARKS  

Microsoft Academic Search

Eleven species of 4 genera of the subfamily Criocerinae, Lilioceris faldermanni (Guerin, 1829); Lilioceris lilii (Scopoli, 1763); Lilioceris merdigera (Linnaeus, 1758); Crioceris asparagi (Linnaeus, 1758), Crioceris bicruciata (Sahlberg, 1823), Crioceris duodecimpunctata (Linnaeus, 1758), Crioceris paracenthesis (Linnaeus, 1767); Crioceris quatuordecimpunctata (Scopoli, 1763); Lema cyanella (Linnaeus, 1758); Oulema gallaeciana (Heyden, 1870) and Oulema melanopus (Linnaeus, 1758), have been recorded for Turkey. Crioceris

Hüseyin Özdikmen; Semra Turgut

165

The vertical distribution of black drum (Pogonias cromis Linnaeus) and striped mullet (Mugil cephalus Linnaeus) in a power plant effluent subject to gas supersaturation  

E-print Network

salmon could. Environmental conditions which affect fish movement, as well as the search for food and the reduction of interspecific competition, are termed directive factors (Fry 1971). These directive factors often com- bine to determine fish... Lowrance model LFC-360 depth locator (Lowrance Electronics, Tulsa, Oklahoma). Since the range in depth of the fish was much less than the recorder was designed to be used for, the depth finder was modified by Mr. Pat McCann of Aquatronics in Houston...

Waldrop, Robert Rush

2012-06-07

166

Effects of the European hornet (Vespa crabro Linnaeus 1761) crude venom on its own species  

PubMed Central

Background Lethal dose 50% is a classical index of toxicity that usually employs small rodents as experimental animals. Therefore, scarce data are available on the effects of venom on invertebrates, particularly the impact of wasp venom on its own species. Findings In the present study, the lethality of Vespa crabro venom on its own species was studied. Lethal dose 50% values of crude venom on workers of hornet Vespa crabro were estimated to be 4.0 mg/kg of body weight. Conclusions Wasps can use their venom apparatus effectively when attacking foreign workers that appear in the immediate vicinity of their nest. The toxins released during stinging are potent enough to kill. The result of this study eliminates the popular myth that venomous animals can be resistant to their own venom. PMID:24499044

2013-01-01

167

The Eastern Belted Kingfisher, Megaceryle Alcyon Alcyon (Linnaeus), in Relation to Fish Management  

Microsoft Academic Search

The kingfisher is the most common and universally distributed bird predator of fish in Michigan. Its principal migration routes are along the Great Lakes shores. Nesting territories are established along streams and lake shores; they are usually larger in the former than in the latter. The kingfisher is diurnal in its feeding with three peaks of activity–morning, afternoon, and early

J. Clark Salyer II; Karl F. Lagler

1949-01-01

168

Blood chemistry of the Nile tilapia, Oreochromis niloticus (Linnaeus, 1757 ) under the impact of water pollution  

Microsoft Academic Search

The present study is an attempt to relate environmental factors ofambient water to the physiology of the cichlid, Oreochromisniloticus. Fish were collected at 3 stations along Lake Maryûtand a fourth one in an authorized hatchery as reference. Water analysis showedthat many attributes of the water quality, in particular in the main basin,werefar beyond admissible levels. In response, functional damage of

Khadiga G. Adham; Hania M. Ibrahim; Sherifa S. Hamed; Ramadan A. Saleh

2002-01-01

169

Climate records from the Faroe-Shetland Channel using Lophelia pertusa (Linnaeus, 1758)  

Microsoft Academic Search

The longest available time series on ocean currents indicates that the southward flow of water from the Greenland Sea is weakening,\\u000a and that correlative large-amplitude changes have occurred in the rate of formation of intermediate Labrador Sea water. These\\u000a have been linked to changes in regional climate which, if trends continue, could within 30 years alter the flow of the

Michael J. Risk; Jason Hall-Spencer; Branwen Williams

170

Absorption and metabolism of carbaryl, malathion, DDT, aldrin and permethrin by larvae of Aedes Aegypti (Linnaeus)  

E-print Network

of permethrin. The same concentration of insecticides were used in water without larvae as control experiments. Studies were performed to determine the rates of absorption, distribution and metabolism of insecticides in the larvae and the rate of degradation... was the least stable. The polarity of the insecticides was determined by two phase partitioning systems. Chloroform/water partitioning showed that all insecticides were recovered almost quantitatively in the chloroform. Partitioning with petroleum ether...

Martinez, Alberto

2012-06-07

171

Age and growth of the blue shark Prionace glauca (Linnaeus, 1758) off northeastern Brazil  

Microsoft Academic Search

Between 1992 and 2000, 681 blue sharks, Prionace glauca (173.8–310cm total length, TL) were collected off northeastern Brazil (Brazilian EEZ). Vertebral sections of 156 males (173.8–310cm TL) and 80 females (185.5–283cm TL) were analysed. The index of average percentage error (IAPE) ranged from 0 to 3.1% for 3–12 growth rings (GRs). Mean marginal increment (MI) decreased from November to January

Rosângela Lessa; Francisco M Santana; Fábio H Hazin

2004-01-01

172

Carotenoid extraction from the gonad of the scallop Nodipecten nodosus (Linnaeus, 1758) (Bivalvia: Pectinidae).  

PubMed

In marine bivalve mollusks, unsaturated molecules called carotenoids are present in the natural diet and play an important role in different biological process, especially in reproduction. In order to gain more insights into these compounds in Nodipecten nodosus it was necessary to develop a suitable protocol for extraction of carotenoids from the gonads. Female gonads of cultured scallops (75 mm length) were lyophilized and macerated in liquid N2. To verify the effect of composition in organosolvents on the extracting solutions, two organic solvents were tested: acetone and hexane (Ac = O:Hex) at four ratios, 1:1, 1:3, 1:5, and 2:3, in four static extraction times: 0, 5, 10, and 15 minutes. Total carotenoids and astaxanthin contents were determined in the crude extracts by UV-visible spectrophotometry and high performance liquid chromatography (HPLC), respectively. Triplicate aliquots of 50 mg were used for each treatment. The results indicated that the best single extraction (0.312 +/- 0.016 microg carotenoids/mg) was attained with Ac = O: Hex 1:3, for 15 minutes. Through exhaustive extraction methodology (10x), a superior yield (0.41 +/- 0.001 microg carotenoids/mg) was obtained from a gonad sample in comparison to the highest value found for a single extraction. Astaxanthin content was reduced by 8.6% in carotenoid extract preservation assay, i.e., -18 degrees C, 26 days incubation, under N2 atmosphere. PMID:19347167

Suhnel, S; Lagreze, F; Ferreira, J F; Campestrini, L H; Maraschin, M

2009-02-01

173

Ingestion of domoic acid and its impact on king scallop ( Pecten maximus, Linnaeus 1758)  

NASA Astrophysics Data System (ADS)

A simple method for spiking formulated feed with domoic acid (DA) was developed in this study. DA feed was prepared by mixing 0.15 mL 100 ?g mL-1 DA with 0.1 g formulated feed, and drying the mixture at room temperature for 2h. The prepared DA feed contained 0.19 pg DA per particle. Of the added DA, 46.72% was retained in the feed. Relatively high DA retention (about 50%) was recorded after DA feed was soaked in water for 2h. Exposure to DA feed for 7 d did not cause the increase of tissue DA level of adult king scallop ( Pecten maximus) significantly in 60 d. The increase of their gonad index after DA exposure was not significantly different from the control. No significant change in DA level was found in spermary, ovary or fertilized eggs after DA exposure. These results indicated that DA excretion may be more efficient than DA accumulation under the current experimental conditions, and the mechanism of domoic acid incorporation in P. maximus may involve intracellular biotransformation.

Liu, Hui; Kelly, Maeve S.; Campbell, Dirk A.; Dong, Shuanglin; Zhu, Jianxin; Wang, Sufeng

2007-04-01

174

Redescription of Taenia solium Linnaeus, 1758 and Taenia saginata Goeze, 1782  

Microsoft Academic Search

Having redescribed the two species Taenia solium and Taenia saginata, it has been established that T. solium is not so rare as is usually supposed. The apparent scarcity is often due to a mis-identification of the proglottids of T. saginata. The apparent greater frequency of T. saginata can be explained insomuch that gravid proglottids of this species are voided spontaneously

Anna Verster; JEAN G. BAER

1967-01-01

175

Linnaeus was right all along: Ulva and Enteromorpha are not distinct genera  

Microsoft Academic Search

Ulva, one of the first Linnaean genera, was later circumscribed to consist of green seaweeds with distromatic blades, and Enteromorpha Link was established for tubular forms. Although several lines of evidence suggest that these generic constructs are artificial, Ulva and Enteromorpha have been maintained as separate genera. Our aims were to determine phylogenetic relationships among taxa currently attributed to Ulva,

Hillary S. Hayden; Jaanika Blomster; Christine A. Maggs; Paul C. Silva; Michael J. Stanhope; J. Robert Waaland

2003-01-01

176

The nature and construction of skeletal spines in Pocillopora damicornis (Linnaeus)  

NASA Astrophysics Data System (ADS)

Extreme variability in the size, shape and spacing of skeletal spines of Pocillopora damicornis has been demonstrated both within single colonies and also between colonies from different environments. Preliminary studies indicated that the majority of spines from branch tips at the apex of the colony display a ‘fasciculate’ growth surface in contrast to partly fasciculate or ‘smooth’ growth surfaces exhibited by spines from branch tips at the base of the colony. No significant differences in the height and width of costal spines from apical and basal branch tips within a single colony were observed, although spines from colonies exposed to strong wave action tended to be significantly shorter and narrower than those from more sheltered environments. Both costal and coenosteal spines from wave-exposed colonies displayed branching and divided extremities while those from sheltered environments consisted of simple cones. Spines develop as an outgrowing of the calicoblastic ectoderm which secretes the skeleton. Growing costal and coenosteal spines are enveloped by a layer of calicoblastic ectoderm which penetrates through mesogloea, aboral gastroderm, coelenteron, oral gastroderm, mesogloea and finally oral ectoderm. Spines within the corallite are surrounded by calicoblastic ectoderm, mesogloea and aboral gastroderm only. A scheme for the growth of the spines is discussed.

Brown, Barbara E.; Hewit, Robert; Le Tissier, Martin D.

1983-06-01

177

Frequency sensitivity and directional hearing in the gleaning bat, Plecotus auritus (Linnaeus 1758)  

Microsoft Academic Search

Summary  \\u000a \\u000a \\u000a \\u000a 1. \\u000a \\u000a The neural audiogram of the common long-eared bat,Plecotus auritus was recorded from the inferior colliculus (IC). The most sensitive best frequency (BF) thresholds for single neurones are\\u000a below 0 dB SPL between 7–20 kHz, reaching a best value of -20 dB SPL between 12–20 kHz. The lower and upper limits of hearing\\u000a occur at 3 kHz and 63

Roger B. Coles; Anna Guppy; M. Elizabeth Anderson; Peter Schlegel

1989-01-01

178

Social Rank and Darwinian Fitness in a Multimale Group of Barbary Macaques (Macaca sylvana Linnaeus, 1758)  

Microsoft Academic Search

In a 5-year study data were compared on rank and reproductive success of 3 mature males in a group of barbary macaques who had sired 32 infants on 14 females. The results indicate that the absolute number of offspring as well as the proportion of offspring from higher-ranking females is a function of the male’s rank. Asymmetrical access to receptive

R. Witt; C. Schmidt; J. Schmitt

1981-01-01

179

Cycles of Activity, Group Composition, and Diet of Lemur mongoz mongoz Linnaeus 1766 in Madagascar  

Microsoft Academic Search

A preliminary study of the ecology and behavior of Lemur mongoz mongoz was carried out in the northwest of Madagascar. The animals were observed for approximately 250 h in July till August, 1973, and for 50 h in June, 1974. L.m.mongoz has been reported to be diurnal and to live in groups of 6–8 individuals. However, we found the animals

Robert W. Sussman; Ian Tattersall

1976-01-01

180

THE ECOLOGY OF PATELLA LINNAEUS FROM THE CAPE PENINSULA, SOUTH AFRICA. 2. REPRODUCTIVE CYCLES  

Microsoft Academic Search

The gonad structure and cycles of seven Patella spp. are described. Most spawn once a year. P. cochlear, P. argenvillei, P. barbara, P. granatina and P. granularis are autumn to winter breeders spawning in May-June. P. oculus spawns in September and P. longicosta in October-November. Partial spawning was recorded for P. cochlear, prior to the attainment of maximum maturity. In

G. M. BRANCH

1974-01-01

181

Activation of prophenoloxidase in the plasma and haemocytes of the marine mussel Perna viridis Linnaeus  

Microsoft Academic Search

Phenoloxidase activity was detected in plasma and haemocytes of the marine mussel Perna viridis. This enzyme exists as a proenzyme, prophenoloxidase (proPO), in both these haemolymph fractions and could be activated in vitro by exogenous proteases (trypsin and ?-chymotrypsin) and a detergent (sodium dodecyl sulphate). In addition, laminarin (a polymer of ?-1,3 glucan) and bacterial lipopolysaccharides (LPSs) effectively triggered proPO

Rengasamy Asokan; Munusamy Arumugam; Periasamy Mullainadhan

1997-01-01

182

The effects of clove oil on coral: An experimental evaluation using Pocillopora damicornis (Linnaeus)  

Microsoft Academic Search

Clove oil solution (10% clove oil, 90% ethanol) is an anaesthetic that is widely used to catch demersal fish on coral reefs. This study assessed the effects of clove oil solution on colonies of Pocillopora damicornis, a cosmopolitan reef coral. In the laboratory, low concentrations (0.5 ppt) of clove oil solution had no effect on coral colour or photosynthetic efficiency, irrespective

Ashley J. Frisch; Karin E. Ulstrup; Jean-Paul A. Hobbs

2007-01-01

183

Olfactory sensilla of the antennal flagellum of the horn fly, Haematobia irritans, (Linnaeus) (Diptera: Muscidae)  

E-print Network

by Schneider and Steinbrecht, 1968), the silkworm moth, ~Bomb x mori (Steinbrecht, unpubl. quoted by 5th aide d at i b ht, theat, the stable fty, ~at ai it a (Lewis, 1971), the sand fly, Culicoides furens (Chu et al. , 1975), and the face fly, Musca... autumnalis (Bay and Pitts, 1976). Multiporous thick-walled sensilla are innervated by 1 to 5 bipolar sense cells (Schneider and Steinbrecht, 1968; Bay and Pitts, 1976). The cuticular processes of thick-walled receptors most commonly assume the shape...

White, Sandy Lee

2012-06-07

184

Sublethal Effect of Copper Toxicity Against Histopathological Changes in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)  

Microsoft Academic Search

The tissue damage induced by various organic pollutants in aquatic animals is well documented, but there is a dearth of information\\u000a relating to the histological alterations induced by copper in the spiny lobster. In the present study, intermoult juveniles\\u000a of the spiny lobster Panulirus homarus (average weight 150–200 g) were exposed to two sublethal concentrations of the copper (9.55 and 19.1 ?g\\/l)

A. Maharajan; S. Rajalakshmi; M. Vijayakumaran; P. Kumarasamy

185

Sertoli cell index and spermatic reserves in adult captive African lions ( Panthera leo, Linnaeus, 1758)  

Microsoft Academic Search

The intrinsic yield of spermatogenesis and the supporting indexes of the Sertoli cells are the best indicators for the spermatic production capacity in a species. The aim of the present study was to quantify the intrinsic yield of the spermatogenetic process, as well as the Sertoli cell index and spermatic reserves. Testicular fragments of five adult African lions was fixed

João Bosco Gonçalves de Barros; Tarcízio Antônio Rego de Paula; Sérgio Luis Pinto da Matta; Cláudio César Fonseca; Flaviana Lima Guião Leite; João Luiz Rossi Jr; Priscila Carvalho de Oliveira; Eduardo Paulino da Costa

2007-01-01

186

Sertoli cell index and spermatic reserves in adult captive African lions (Panthera leo, Linnaeus, 1758).  

PubMed

The intrinsic yield of spermatogenesis and the supporting indexes of the Sertoli cells are the best indicators for the spermatic production capacity in a species. The aim of the present study was to quantify the intrinsic yield of the spermatogenetic process, as well as the Sertoli cell index and spermatic reserves. Testicular fragments of five adult African lions was fixed in 4% glutaric aldehyde, dehydrated at increasing alcohol concentrations, included into hydroxyethyl methacrylate, and were cut into 4 microm thickness. In the seminiferous epithelium of the African lions, 10.3 primary spermatocytes at pre-leptotene phase are produced by the type-A spermatogonia. During meiotic divisions, only 2.7 spermatids were produced from the primary spermatocytes. The general spermatogenesis production in the African lions was approximately 22.1 cells, and each Sertoli cell was able to sustain and maintain approximately 14.9 cells of the germinative line, from which 7.9 are round spermatids. A total of 103x10(6) spermatozoa are produced by each testis gram at each cycle of the seminiferous epithelium. The spermatic reserve of lion is below the amplitude observed in mammals. PMID:17499460

de Barros, João Bosco Gonçalves; de Paula, Tarcízio Antônio Rego; da Matta, Sérgio Luis Pinto; Fonseca, Cláudio César; Leite, Flaviana Lima Guião; Rossi Jr, João Luiz; de Oliveira, Priscila Carvalho; da Costa, Eduardo Paulino

2007-12-01

187

Helminth fauna of the red fox (Vulpes vulpes Linnaeus, 1758) in southern Belarus.  

PubMed

We examined 94 carcasses of and 1,213 faecal samples from red foxes collected between 1981 and 2001 in natural and transformed ecosystems in the southern part of Belarus. A total of 32 helminth species were found. Of these, the most common were Alaria alata, Pearsonema plica, Taenia crassiceps, Toxocara canis, Trichinella spp. larvae and Uncinaria stenocephala. All species are significant for medical and veterinary health. PMID:12474048

Shimalov, V V; Shimalov, V T

2003-01-01

188

Alaria alata in wild boars (Sus scrofa, Linnaeus, 1758) in the eastern parts of Germany.  

PubMed

Over the last decade, incidental findings of Alaria alata in stocks of German wild boar during the official Trichinella inspection have been increased. As early as 2006, the German Federal Institute for Risk Assessment pointed out the possible health risk to the consumer posed by this trematode. However, at that time, reliable data concerning the prevalence of the parasite in German wild boars and feral pigs were lacking especially because no appropriate detection method was available. The development of the A. alata mesocercariae technique (Riehn et al., Parasitol Res 107(1):213-220, 2010) now makes it possible to close the remaining gaps in knowledge in this field. Over a 2-year period, 286 retained samples of fresh meat from wild boars originating from different hunting areas in Brandenburg and Saxony-Anhalt, which were tested negative for A. alata during the official Trichinella inspection in the competent veterinary inspection offices, were reexamined with the A. alata mesocercariae migration technique (AMT). In 33 out of 286 retained meat samples (11.5%) with a preliminary negative report, the trematode was demonstrated during the follow-up examination using AMT. This result especially in connection with the highly heterogeneous distribution of the parasite within the hosts' body (Riehn et al., Parasitol Res 107(1):213-220, 2010; Moehl et al., Parasitol Res 105(1):1-15, 2009) shows clearly that a high number of unreported cases of alariosis in wild boars have to be assumed. PMID:22562214

Riehn, Katharina; Hamedy, Ahmad; Grosse, Knut; Wüste, Tanja; Lücker, Ernst

2012-10-01

189

Reproduction and polychlorinated biphenyls in Fundulus heteroclitus (linnaeus) from New Bedford Harbor, Massachusetts, USA  

SciTech Connect

This investigation evaluated polychlorinated biphenyl (PCB) accumulation, survival, and reproduction in Fundulus heteroclitus from four stations along a gradient of increasing sediment contamination from West Island in Buzzards Bay, Massachusetts, USA, to the most contaminated area of the New Bedford Harbor, Massachusetts, USA, Superfund site. Fish collected during their natural spawning season were held in the laboratory for 5 weeks. Liver concentrations of non-ortho- and mono-ortho-PCBs averaged 0.461, 9.48, 20.8, and 29.3 {micro}g/g dry weight, with dioxin toxic equivalent concentrations (TEQs) of 0.006, 0.132, 0.543, and 1.56 ng/g: differences among stations were statistically significant. Females from two stations within the Superfund site had significantly greater mortality compared to those within West Island, and growth was reduced. Progeny of fish from the most contaminated station exhibited significantly reduced survival and greater incidence of spinal abnormalities compared to those from West Island. No differences in egg production or food consumption were observed. A significant residue-effect relationship was found between TEQs of liver PCBs and female mortality, consistent with that determined previously from laboratory exposures and validating TEQ as an effects indicator. Embryo and larval survival were inversely related to maternal liver TEQ.

Black, D.E.; Gutjahr-Gobell, R.; Pruell, R.J.; Bergen, B.; Mills, L. [Environmental Protection Agency, Narragansett, RI (United States); McElroy, A.E. [State Univ. of New York, Stony Brook, NY (United States). Marine Sciences Research Center

1998-07-01

190

Predation and searching efficiency of a ladybird beetle, Coccinella septempunctata Linnaeus in laboratory environment.  

PubMed

The predation and searching efficiency of fourth instar of predatory C. septempunctata at various densities of mustard aphid, Lipaphis erysimi (Kaltenbach) and predator was investigated under laboratory conditions. The feeding rate of predatory stage decreased at increased prey- and predator densities. Highest percent (92.80%) prey consumption was observed at initial prey density and lowest percent (40.86%) prey consumption at highest prey density by the fourth instar, though the total prey consumption increased with increase in either prey- or predator densities. Similarly, the individual prey consumption was also highest at initial predator density and lowest at highest predator density owing to the mutual interference between the predators at higher densities. The area of discovery (searching efficiency) also decreased with increase in prey- and predator densities. Handling time of predator was highest at lower prey densities, which decreased with increased prey densities. The highest percentage of prey consumption at the prey density of 50 revealed that 1:50 predator-prey ratio was the best to reduce the pest population. PMID:15267141

Omkar; Srivastava, Shefali

2003-01-01

191

Biological activities of Wiedemannia multifida (Linnaeus) Bentham and Wiedemannnia orientalis Fisch. & Mey.  

PubMed Central

Objective To evaluate total phenolic, antioxidant and antimicrobial activities of methanolic extracts of the Wiedemannia multifida (W. multifida) and Wiedemannnia orientalis (W. orientalis). Methods Phosmomolybdenum assay, DPPH radical scavenging activity and ?-carotene-linoleate bleaching were used to evaluate the antioxidant capacity. Results The total phenolics were found to be (22.45±0.60) and (9.53±0.00) mg gallic acid equivalents (GAE)/g in W. multifida and W. orientalis extracts, respectively. The predominant phenolic compounds identified by HPLC-DAD in the both extracts were rutin+ellagic acid and kaempferol. Total antioxidant capacity and DPPH radical scavenging activity of W. multifida were higher than W. orientalis. In ?-carotene-linoleic acid system, both extracts exhibited strong inhibition against linoleic acid oxidation. Antimicrobial activity was assessed by the agar diffusion method against fifteen microorganisms. Both extracts exhibited remarkable antibacterial activity. Conclusions The present study suggests that methanolic extracts of W. multifida and W. orientalis could be a good source of antioxidant and antimicrobial agents in foods, pharmaceuticals preparations. PMID:23620837

Albayrak, Sevil; Aksoy, Ahmet

2013-01-01

192

The draft genome of the transgenic tropical fruit tree papaya (Carica papaya Linnaeus)  

Microsoft Academic Search

Papaya, a fruit crop cultivated in tropical and subtropical regions, is known for its nutritional benefits and medicinal applications. Here we report a 3× draft genome sequence of `SunUp' papaya, the first commercial virus-resistant transgenic fruit tree to be sequenced. The papaya genome is three times the size of the Arabidopsis genome, but contains fewer genes, including significantly fewer disease-resistance

Ray Ming; Shaobin Hou; Yun Feng; Qingyi Yu; Alexandre Dionne-Laporte; Jimmy H. Saw; Pavel Senin; Wei Wang; Benjamin V. Ly; Kanako L. T. Lewis; Lu Feng; Meghan R. Jones; Rachel L. Skelton; Jan E. Murray; Cuixia Chen; Wubin Qian; Junguo Shen; Peng Du; Moriah Eustice; Eric Tong; Haibao Tang; Eric Lyons; Robert E. Paull; Todd P. Michael; Kerr Wall; Danny W. Rice; Henrik Albert; Ming-Li Wang; Yun J. Zhu; Michael Schatz; Niranjan Nagarajan; Ricelle A. Acob; Peizhu Guan; Andrea Blas; Ching Man Wai; Christine M. Ackerman; Yan Ren; Chao Liu; Jianmei Wang; Jianping Wang; Jong-Kuk Na; Eugene V. Shakirov; Brian Haas; Jyothi Thimmapuram; David Nelson; Xiyin Wang; John E. Bowers; Andrea R. Gschwend; Arthur L. Delcher; Ratnesh Singh; Jon Y. Suzuki; Savarni Tripathi; Kabi Neupane; Hairong Wei; Beth Irikura; Maya Paidi; Ning Jiang; Wenli Zhang; Gernot Presting; Aaron Windsor; Rafael Navajas-Pérez; Manuel J. Torres; F. Alex Feltus; Brad Porter; Yingjun Li; A. Max Burroughs; Ming-Cheng Luo; Lei Liu; David A. Christopher; Stephen M. Mount; Paul H. Moore; Tak Sugimura; Jiming Jiang; Mary A. Schuler; Vikki Friedman; Thomas Mitchell-Olds; Dorothy E. Shippen; Claude W. Depamphilis; Jeffrey D. Palmer; Michael Freeling; Andrew H. Paterson; Dennis Gonsalves; Lei Wang; Maqsudul Alam

2008-01-01

193

GREEN CRAB (CARCINUS MAENAS LINNAEUS) CONSUMPTION RATES ON AND PREY PREFERENCES AMONG FOUR BIVALVE PREY SPECIES  

EPA Science Inventory

The European green crab, Carcinus maenas, is a recent invader to Pacific Northwest (PNW) estuaries with a voracious appetite, especially for bivalves. To assess their potential impact, we estimated green crab consumption rates on four PNW bivalve species, Yaquina oyster (Ostrea ...

194

Reproduction and polychlorinated biphenyls in Fundulus heteroclitus (linnaeus) from New Bedford Harbor, Massachusetts, USA  

Microsoft Academic Search

This investigation evaluated polychlorinated biphenyl (PCB) accumulation, survival, and reproduction in Fundulus heteroclitus from four stations along a gradient of increasing sediment contamination from West Island in Buzzards Bay, Massachusetts, USA, to the most contaminated area of the New Bedford Harbor, Massachusetts, USA, Superfund site. Fish collected during their natural spawning season were held in the laboratory for 5 weeks.

Dianne E. Black; Ruth Gutjahr-Gobell; Richard J. Pruell; Barbara Bergen; Lesley Mills; Anne E. McElroy

1998-01-01

195

Tree inspection and control of infestations of Oak Processionary Moth Thaumetopoea processionea (Linnaeus)  

E-print Network

Tree inspection and control of infestations of Oak Processionary Moth Thaumetopoea processionea ..................................................................................... 4 2.1 Designation of the core and buffer zones 2.2 Tree inspection 2.3 Use of the Plant Health affecting timely management of OPM 4.7 Inspection of other imported trees 5. Conclusions

196

Removal of Pb (II) Ions from Aqueous Solutions by Cladophora rivularis (Linnaeus) Hoek  

PubMed Central

Biosorption of Pb(II) using Cladophora rivularis was examined as a function of initial pH heavy metal concentration and temperature. The optimum pH value for the biosorption of lead was 4.0. The adsorption equilibriums were well described by Langmuir and Freundlich isotherm models and it was implied by the results that the C. rivularis biomass is suitable for the development of efficient biosorbent in order to remove Pb(II) from wastewater and to recover it. The high values of correlation coefficient (R2 = 0.984) demonstrate equilibrium data concerning algal biomass, which is well fitted in Freundlich isotherms model equations. The dimensionless parameter RL is found in the range of 0.0639 to 0.1925 (0 < RL < 1), which confirms the favorable biosorption process. Fourier transform infra-red (FTIR) spectroscopy of C. rivularis was used to reveal the main function groups of biosorption, which were hydroxyl, amine groups, C–H stretching vibrations of –CH3 and –CH2, and complexation with functional groups. All these results suggest that C. rivularis can be used effectively for removal of Pb(II). PMID:22629198

Jafari, Naser; Senobari, Zoreh

2012-01-01

197

Morphometric analysis of fetal development of Cavia porcellus (Linnaeus, 1758) by ultrasonography--pilot study.  

PubMed

Measurements on the growth process and placental development of the embryo and fetuses of Cavia porcellus were carried out using ultrasonography. Embryo, fetus, and placenta were monitored from Day 15 after mating day to the end of gestation. Based on linear and quadratic regressions, the following morphometric analysis showed a good indicator of the gestational age: placental diameter, biparietal diameter, renal length, and crown rump. The embryonic cardiac beat was first detected at an average of 22.5 days. The placental diameter showed constant increase from beginning of gestation then remained to term and presented a quadratic correlation with gestational age (r(2) = 0.89). Mean placental diameter at the end of pregnancy was 3.5 ± 0.23 cm. By Day 30, it was possible to measure biparietal diameter, which followed a linear pattern of increase up to the end of gestation (r(2) = 0.95). Mean biparietal diameter in the end of pregnancy was 1.94 ± 0.03 cm. Kidneys were firstly observed on Day 35 as hyperechoic structures without the distinction of medullar and cortical layers, thus the regression model equation between kidney length and gestational age presents a quadratic relationship (r(2) = 0.7). The crown rump presented a simple linear growth, starting from 15 days of gestation, displaying a high correlation with the gestational age (r(2) = 0.9). The offspring were born after an average gestation of 61.3 days. In this study, we conclude that biparietal diameter, placental diameter, and crown rump are adequate predictive parameters of gestational age in guinea pigs because they present high correlation index. PMID:24560548

Santos, Juliana; Fonseca, Erika; van Melis, Juliano; Miglino, Maria Angélica

2014-04-15

198

Protein profile of the seminal plasma of collared peccaries (Pecari tajacu Linnaeus, 1758).  

PubMed

This study was conducted to characterize the major proteins of the peccary seminal plasma, based on the semen samples collected from nine adult and reproductively sound animals. Our approach included the use of two-dimensional electrophoresis followed by Coomassie blue staining and analysis of polypeptide maps with PDQuest Software (Bio-Rad). Proteins were identified by tandem mass spectrometry (LC-MS/MS). We detected 179 protein spots per gel and 98 spots were identified by mass spectrometry, corresponding to 23 different proteins. The combined intensity of those spots accounted for 56.2±6% of the intensities of all spots and 60.9% of the intensities of spots presented in every protein map. Protein spots identified as clusterin represented 19.7±8.3% of the integrated optical densities of all spots detected in the seminal plasma maps. There was a negative association (r=-0.87; P<0.05) between the intensity of a clusterin spot and the percentage of sperm with functional membrane. Spermadhesin porcine seminal plasma protein 1 and bodhesin 2 comprised 5.4±1.9 and 8.8±3.9% of the total intensity of all spots respectively. Many proteins appeared in a polymorphic pattern, such as clusterin (27 spots), epididymal secretory glutathione peroxidase (ten spots), inter-?-trypsin inhibitor (12 spots), and IgG-binding protein (ten spots), among others. In conclusion, we presently describe the major seminal plasma proteome of the peccary, which exhibits a distinct high expression of clusterin isoforms. Knowledge of wild species reproductive biology is crucial for an understanding of their survival strategies and adaptation in a changing environment. PMID:24516176

Santos, E A A; Sousa, P C; Martins, J A M; Moreira, R A; Monteiro-Moreira, A C O; Moreno, F B M B; Oliveira, M F; Moura, A A; Silva, A R

2014-06-01

199

NOTES ON THE EMBRYONIC PERIOD OF THE PINFISH LAGODON RHOMBOIDES (LINNAEUS)  

EPA Science Inventory

Adult pinfish, Lagodon rhomboides, were collected during September and October, 1974 and 1975. Following a minimum of one week holding period, females were initially injected with 200 IU human chorionic gonadotropin and injected with 400 IU every second day thereafter until matur...

200

Sexual Dimorphisms in the Dermal Denticles of the Lesser-Spotted Catshark, Scyliorhinus canicula (Linnaeus, 1758)  

PubMed Central

The dermal layers of several elasmobranch species have been shown to be sexually dimorphic. Generally, when this occurs the females have thicker dermal layers compared to those of males. This sexual dimorphism has been suggested to occur as a response to male biting during mating. Although male biting as a copulatory behaviour in Scyliorhinus canicula has been widely speculated to occur, only relatively recently has this behaviour been observed. Male S. canicula use their mouths to bite the female’s pectoral and caudal fins as part of their pre-copulatory behaviour and to grasp females during copulation. Previous work has shown that female S. canicula have a thicker epidermis compared to that of males. The structure of the dermal denticles in females may also differ from that of males in order to protect against male biting or to provide a greater degree of friction in order to allow the male more purchase. This study reveals that the length, width and density of the dermal denticles of mature male and female S. canicula are sexually dimorphic across the integument in areas where males have been observed to bite and wrap themselves around females (pectoral fin, area posterior to the pectoral fin, caudal fin, and pelvic girdle). No significant differences in the dermal denticle dimensions were found in other body areas examined (head, dorsal skin and caudal peduncle). Sexually dimorphic dermal denticles in mature S. canicula could be a response to male biting/wrapping as part of the copulatory process. PMID:24116179

Crooks, Neil; Babey, Lucy; Haddon, William J.; Love, Adrian C.; Waring, Colin P.

2013-01-01

201

First detection of Alaria alata mesocercariae in wild boars (Sus scrofa Linnaeus, 1758) from Bulgaria.  

PubMed

The trematode Alaria alata, an intestinal parasite of different carnivore species is widely distributed throughout Europe. The mesocercarial stages of Alaria spp. may infect almost all vertebrate species, including humans, and, in particular, omnivorous scavengers such as wild boars serve as paratenic hosts for the parasite. The introduction of the A. alata mesocercariae migration technique (AMT) opened the way to a reliable detection of Alaria spp. mesocercariae in different body tissues of their paratenic hosts. For the first time, it was possible to detect vital A. alata mesocercariae from two Bulgarian wild boars by means of this new method. In addition, polymerase chain reaction (PCR) examination of the respective parasitic DNA allowed the unequivocal species identification of the parasites as A. alata. Isolation and molecular biological identification of the parasite's developmental stages make significant contributions to completion of data on both the distribution of Alaria spp. in stocks of European game and the relationship between different Eurasian Alaria spp. isolates. PMID:23374251

Riehn, K; Lalkovski, N; Hamedy, A; Lücker, Ernst

2014-06-01

202

Echinometra lucunter (Linnaeus) (Echinoidea, Echinometridae) als Wirt einer komplexen Lebensgemeinschaft im Karibischen Meer  

NASA Astrophysics Data System (ADS)

The association between Acyrtus rubiginosus (Gobiesocidae), Clastotoechus vanderhorsti (Porcellanidae), Ophiothrix sp. (Ophiotrichidae) and their rock-boring host Echinometra lucunter (Echinometridae) has been studied on the rocky shores of Santa Marta, Colombia. The three inhabitants of the sea urchin dwellings benefit from their cohabitation by receiving effective shelter from intertidal effects and from predators. The sea urchin, by contrast, seems neither to be benefitted nor harmed by the association.

Schoppe, Sabine

1991-09-01

203

Control of breathing in in vitro brain stem preparation from goldfish (Carassius auratus; Linnaeus).  

PubMed

In vitro brain stem preparations from goldfish (Carassius auratus) were used to first determine whether this species possesses central chemoreceptors able to modulate respiratory activity. Preparations were superfused with an artificial cerebrospinal fluid (aCSF); fictive breathing was recorded extracellularly by placing a suction electrode on cranial nerve VII. Reducing the level of O2 in the gas mixture used to bubble the aCSF from a hyperoxic level (80% or 98.7% O2) to a relative hypoxic level (20% or 40% O2) increased the frequency of the fictive respiratory burst (P = 0.0002). Reducing the pH of the aCSF from 7.9 to 7.4 by increasing CO2 in the superfusate did not affect fictive breathing. Chloride-mediated neurotransmission (GABA/glycine) is a major modulator of respiratory activity; however, its effect on the neural circuits that regulate breathing in teleosts remains unknown. Bath application of GABA (0.5, 5.0 mM) decreased burst frequency but not amplitude; this effect was dose dependent (drug × concentration: P = 0.01). Superfusion of the preparations with aCSF containing 1.25 ?M of bicuculline methochloride and 1.50 ?M of strychnine hydrochloride (GABAA and glycine receptor antagonists, respectively) increased burst frequency (P = 0.002) and amplitude (P < 0.001). We conclude that respiratory activity produced by the goldfish brain stem is not responsive to the moderate CO2 levels used in this study; it may contain O2 chemoreceptors, but the relatively small response could also reflect nonspecific effects of hypoxia on the central nervous system. Cl(-)-mediated neurotransmission inhibits fictive breathing; this aspect of respiratory regulation is similar to other groups of vertebrates. PMID:24769710

Côté, Éric; Rousseau, Jean-Philippe; Fournier, Stéphanie; Kinkead, Richard

2014-01-01

204

Nurse egg consumption and intracapsular development in the common whelk Buccinum undatum (Linnaeus 1758)  

NASA Astrophysics Data System (ADS)

Intracapsular development is common in marine gastropods. In many species, embryos develop alongside nurse eggs, which provide nutrition during ontogeny. The common whelk Buccinum undatum is a commercially important North Atlantic shallow-water gastropod. Development is intracapsular in this species, with individuals hatching as crawling juveniles. While its reproductive cycle has been well documented, further work is necessary to provide a complete description of encapsulated development. Here, using B. undatum egg masses from the south coast of England intracapsular development at 6 °C is described. Number of eggs, veligers and juveniles per capsule are compared, and nurse egg partitioning, timing of nurse egg consumption and intracapsular size differences through development are discussed. Total development took between 133 and 140 days, over which 7 ontogenetic stages were identified. The number of both eggs and veligers were significantly related to capsule volume, with approximately 1 % of eggs developing per capsule. Each early veliger consumed nurse eggs rapidly over just 3-7 days. Within each capsule, initial development was asynchronous, but it became synchronous during the veliger stage. No evidence for cannibalism was found during development, but large size differences between embryos developing within each capsule were observed, and occasionally `empty' veligers were seen, which had not successfully consumed any nurse eggs. These results indicate a high level of competition for nurse eggs within each capsule during development in the common whelk. The initial differences observed in nurse egg uptake may affect individual predisposition in later life.

Smith, Kathryn E.; Thatje, Sven

2013-03-01

205

Carl Linnaeus, Erasmus Darwin and Anna Seward: Botanical Poetry and Female Education  

ERIC Educational Resources Information Center

This article will explore the intersection between "literature" and "science" in one key area, the botanical poem with scientific notes. It reveals significant aspects of the way knowledge was gendered in the Enlightenment, which is relevant to the present-day education of girls in science. It aims to illustrate how members of…

George, Sam

2014-01-01

206

Evolutionary Divergence of Geographic Subspecies within the Scalloped Spiny Lobster Panulirus homarus (Linnaeus 1758)  

PubMed Central

Panulirus homarus is an economically important spiny lobster that is widespread through the Indo-West Pacific Region, but has an uncertain taxonomic status, with three or four geographic subspecies having been described. This study used mitochondrial (16S, COI and control region) and nuclear (18S, ITS-1) DNA sequences to examine specimens of all putative subspecies and forms from throughout their range, in order to determine their genetic validity, and understand the evolutionary history of this species. Despite the range of diversity present in the loci examined, the results were consistent across genes. P. h. rubellus from the SW Indian Ocean comprised the most divergent lineage that was reciprocally monophyletic with respect to all other P. homarus (approx. 9% divergence in COI), and has likely evolved reproductive barriers. The putative P. h. “Brown” subspecies from the Marquesas Is in the central Pacific also comprised a somewhat divergent monophyletic lineage (approx. 3% in COI), but may simply be an allopatric population. The widespread P. h. homarus was not diverged at all from the described P. h. megasculpta from the NW Indian Ocean. The degree of evolutionary divergence of populations at the extremes distribution of the species is somewhat surprising, given the long pelagic larval stage, but suggests that allopatric speciation has been an important driver in the evolution of the genus. PMID:24892781

Lavery, Shane D.; Farhadi, Ahmad; Farahmand, Hamid; Chan, Tin-Yam; Azhdehakoshpour, Ashkan; Thakur, Vibhavari; Jeffs, Andrew G.

2014-01-01

207

The Sargassum Frogfish (Histrio histrio Linnaeus) observed in mangroves in St. John, US Virgin Islands  

USGS Publications Warehouse

The Sargassum Frogfish (Histrio histrio), the only pelagic member of the frogfish family Antennariidae, is considered an obligate associate of floating mats of the brown algae Sargassum natans and S. fluitans (Adams 1960; Dooley 1972; Pietsch and Grobecker 1987). Between February and April 2010, 20 of these fish were observed in three mangrove-fringed bays in Virgin Islands Coral Reef National Monument, St. John, US Virgin Islands. All of them were clinging to clumps of the red alga Acanthophora spicifera growing on the submerged prop roots of red mangrove trees (Rhizophora mangle) distributed along an estimated total of 2,160 mof shoreline (Fig. 1). All of the fish were at a depth of less than 0.5 meters. Two individuals were seen on one prop root, but the other 18 were solitary. Their estimated standard lengths ranged from about 20 to 100 mm. Littler and Littler (2000, p. 295) published a photograph of one individual in blades of the green alga Ulva lactuca growing on a prop root in Belize. This is the first report of the Sargassum Frogfish living in association with attached algae.

Rogers, C.S.; Pietsch, T.W.; Randall, J.E.; Arnold, R.J.

2010-01-01

208

Mitochondrial phylogeography of the European pond turtle, Emys orbicularis (Linnaeus 1758).  

PubMed

The phylogeny and phylogeography of Emys orbicularis was inferred from mitochondrial nucleotide sequences of the cytochrome b gene analysed by DNA sequencing and RNA heteroduplex analysis. Within the family Emydidae the monotypic genus Emys is affiliated with the nearctic taxa Emydoidea blandingii and Clemmys marmorata. The analysis of 423 individuals of E. orbicularis, originating throughout its distribution range, revealed a remarkable intraspecific differentiation in 20 different haplotypes with distinct geographical ranges. Maximum parsimony analysis produced a star-like phylogeny with seven main lineages which may reflect separations in the late Pliocene. The haplotype distribution examined by partial Mantel tests and analysis of molecular variance revealed a substantial effect of glacial periods. This historical perspective suggests the existence of multiple glacial refugia and considerable Holocene range expansion which was modulated by climatic traits. Further support is gained for the occurrence of long-term parapatry in glacial refugia. PMID:10620234

Lenk, P; Fritz, U; Joger, U; Wink, M

1999-11-01

209

The energetics of growth, respiration, and egestion of juvenile striped mullet, Mugil cephalus Linnaeus  

E-print Network

on juvenile striped mullet to measure the major pathways of energy flow through a euryhaline teleost. The experimental fish were subjected to a range of ration sizes in order to determine the effect of food quantity on the energetics of growth, respiration...- able on marine or euryhaline teleosts. Notable exceptions are those studies by Nenzel (1960), Pandian (1967a, b, c), and Missing (1964), although the last work is based on nitrogen rather than energy trans- ' fer. The other two authors measured...

Muska, Carl Frank

2012-06-07

210

Rock preference of planulae of jellyfish Aurelia aurita (Linnaeus 1758) for settlement in the laboratory  

NASA Astrophysics Data System (ADS)

Planulae of Aurelia aurita were exposed to 11 types of rocks (basalt, gabbro, granite, rhyolite, sandstone, limestone, conglomerate, gneiss, quartzite, marble and schist) to examine their attachment preference among rock material and position. Numbers of attached polyps was the highest on marble and the least on limestone. Their preference with regard to settling position was the same among the rocks, showing the highest density of polyps on the underside (88.5%) compared to upper (23.6%) and perpendicular sides (10.3%) of rock. The results showed that while position preference is more important than rock property, higher numbers of polyps were observed in rocks with a medium surface hardness.

Yoon, Won Duk; Choi, Sung-Hwan; Han, Changhoon; Park, Won Gyu

2014-06-01

211

Effect of Artificial Diets on Growth, Survival and Condition of Adult Cuttlefish, Sepia officinalis Linnaeus, 1758  

Microsoft Academic Search

The effects of artificial diets on growth and body condition of adult cuttlefish, Sepia officinalis were tested in two experiments. Supplemented prepared diets (fish myofibrillar protein concentrate) were fed during a 30-day and a 21-day experiments. Growth, feeding rate and food conversion of group-reared cuttlefish were analyzed. The first of these experiments tested four artificial diets, made with increasing levels

Pedro M. Domingues; Paul F. Dimarco; Jose P. Andrade; Phillip G. Lee

2005-01-01

212

Oocyte adhesiveness and embryonic development of Astyanax bimaculatus (Linnaeus, 1758) (Pisces: Characidae).  

PubMed

This study shows for the first time the presence of a jelly coat on oocytes of neotropical Characiformes fish. This structure could be responsible for the adhesiveness of Astyanax bimaculatus oocytes, a species widely distributed in South America including in the São Francisco River basin in Brazil. Adult specimens of A. bimaculatus were submitted to artificial reproduction in order to analyse the egg morphology and embryonic development. The eggs were fertilised and kept in incubators with a water temperature of 24°C so that embryogenesis could be monitored. Ovulated and unfertilised oocytes were also collected and submitted to routine histological techniques. Astyanax bimaculatus oocytes were found to be spherical, yellowish, and covered by a thin jelly coat with a slightly adhesive surface. The mean oocyte diameter was 1.03 ± 0.03 mm, the perivitelline space was 0.21 ± 0.02 mm and the jelly coat's thickness was 0.04 ± 0.01 mm. Positive periodic acid-Schiff (PAS) stain and Alcian blue stain pH 2.5 indicated the presence of neutral glycoproteins, and carboxylated acid glycoconjugates on the jelly coat that formed mucosubstances that may be associated with egg adhesiveness. At a water temperature of 24°C, blastopore closure and hatching occurred at 5 h and 17 h after fertilisation, respectively. The results of this study provide essential information for phylogenetic studies and for a better understanding of the reproductive strategy of A. bimaculatus, currently included in the incertae sedis group of the Characidae family due to the lack of monophyly among the families of the group. PMID:22717095

Weber, André Alberto; Arantes, Fábio Pereira; Sato, Yoshimi; Rizzo, Elizete; Bazzoli, Nilo

2013-05-01

213

An experimental demonstration of the life cycle of a Diplostomulum from Lampetra fluviatilis Linnaeus, 1758  

Microsoft Academic Search

Summary Metacercariae are recorded from the central nervous system of Lampetra fluviatilis in a British river. They are compared with metacercariae of Diplostomum phoxini, D. gasterostei, D. spathaceum and with measurements of Diplostomulum petromyzi-fluviatilis described by Gintovt (1969) from Lampetra planeri (Table 1). Other stages in the life-cycle of this diplostomulum were obtained experimentally; adults from immunosuppressed ducks (Anas platyrhynchus)

Roger Sweeting; John Cass

1976-01-01

214

Reduction of feral cat (Felis catus Linnaeus 1758) colony size following hysterectomy of adult female cats.  

PubMed

The size of urban cat colonies is limited only by the availability of food and shelter; therefore, their population growth challenges all known population control programs. To test a new population control method, a free-roaming feral cat colony at the Zoological Park in the city of Rio de Janeiro was studied, beginning in 2001. The novel method consisted of performing a hysterectomy on all captured female cats over 6 months of age. To estimate the size of the colony and compare population from year to year, a method of capture-mark-release-recapture was used. The aim was to capture as many individuals as possible, including cats of all ages and gender to estimate numbers of cats in all population categories. Results indicated that the feral cat population remained constant from 2001 to 2004. From 2004 to 2008, the hysterectomy program and population estimates were performed every other year (2006 and 2008). The population was estimated to be 40 cats in 2004, 26 in 2006, and 17 cats in 2008. Although pathogens tend to infect more individuals as the population grows older and maintains natural behavior, these results show that free-roaming feral cat colonies could have their population controlled by a biannual program that focuses on hysterectomy of sexually active female cats. PMID:21440475

Mendes-de-Almeida, Flavya; Remy, Gabriella L; Gershony, Liza C; Rodrigues, Daniela P; Chame, Marcia; Labarthe, Norma V

2011-06-01

215

Effects of anticholinesterase drugs on biomarkers and behavior of pumpkinseed, Lepomis gibbosus (Linnaeus, 1758).  

PubMed

The presence of pharmaceutical residues in the aquatic environment has recently received great attention, as potential adverse effects may arise from their presence. Inhibition of cholinesterases (ChE) has been widely used as an environmental biomarker of exposure to organophosphates (OP) and carbamate (CB) pesticides. However, other widespread anthropogenic contaminants - including pharmaceutical drugs - can exert toxic effects through ChE inhibition. Studies with aquatic species have shown that inhibition of ChE is associated with behavioral changes. Bearing this in mind, this work aimed to study the effects on individual behavior and acetylcholinesterase (AChE) activity of selected tissues of Lepomis gibbosus, after exposure to the anticholinesterasic drugs neostigmine and pyridostigmine. Results revealed that neostigmine significantly decreased the activity of AChE in the head (LOEC = 100 mg L(-1)), but not in dorsal muscle. On the other hand, pyridostigmine significantly decreased the activity of AChE in both the head (LOEC = 0.001 mg L(-1)) and dorsal muscle homogenates (LOEC = 100 mg L(-1)). The impairment of this enzymatic form was attained at ecologically relevant concentrations (in the case of pyridostigmine, for head AChE), which is an interesting finding, specially considering that these toxic effects occurred for a pharmaceutical compound. Contrarily, there were no significant differences in the behavior of L. gibbosus in any parameter, for neither drug. These results suggest that the behavioral parameters analyzed (scototaxis and lethargy) in L. gibbosus could not be regarded as suitable markers to assess the effects of drugs such as neostigmine and pyridostigmine. In contrast, the pattern of response elicited by cholinesterasic inhibition showed the usefulness of this toxicological parameter for the assessment of pharmaceuticals in the environment, namely anticholinesterasics. PMID:22576010

Rodrigues, Sara; Antunes, Sara C; Brandão, Fátima P; Castro, Bruno B; Gonçalves, Fernando; Nunes, Bruno

2012-05-01

216

Pancreatic infections of Myxobolus osburni Herrick (Myxozoa: Myxosporea) in the pumpkinseed, Lepomis gibbosus (Linnaeus) in Iowa.  

PubMed

Cysts of Myxobolus osburni occurred throughout the pancreas in 119 of 150 (79.3%) pumpkinseed (Lepomis gibbosus) from West Lake Okoboji, northwest Iowa during the summer, 1980. None of 341 bluegill (Lepomis macrochirus) were infected. Lobate cysts (up to 3 mm diameters) adjacent to the gall bladder contained sporulating plasmodia and mature spore masses. Inflammatory responses in the infected pancreas included engorged blood vessels, endocrine cell nuclei pyknosis, leukocyte (mostly lymphocyte) infiltration, fibroblast proliferation, dark pigment deposition and fibrosis. Host reaction was most pronounced in pancreas containing unencapsulated spore aggregates. Spore variability and plasmodial structure are also described. PMID:6808159

Ingram, K M; Mitchell, L G

1982-01-01

217

Reproduction and sexual dimorphism in a population of Virginia Striatula Linnaeus (Reptilia, Colubridae  

E-print Network

evaluation of this possible correlation than was here obtained. 24 S R The total sample utilized in this study contained 324 snakes: 169 males, 155 females. This secondary sex ratio has been subjected to the chi-square test to deter- mine whether... primary sex ratio of five males to six females. The value of chi-square is 0. 09 with one degree of freedom, and the null hypothesis must again be accepted. Because this test was based on only two broods, it was decided to add to these the three...

Clark, Donald Ray

2012-06-07

218

Cytogenetic response of Scots pine (Pinus sylvestris Linnaeus, 1753) (Pinaceae) to heavy metals  

PubMed Central

Abstract We studied cytogenetic reactions of Scots pine seedlings to heavy metals – lead, cupric and zinc nitrates applied at concentrations 0.5 to 2000 µM. We determined the range of concentrations of heavy metals that causes mutagenic effect. Lead was found to cause the strongest genotoxicity as manifested by significant increase in the frequency of pathological mitosis, occurrence of fragmentations and agglutinations of chromosomes, various types of bridges, and a significant number of the micronuclei which were absent in the control. Possible cytogenetic mechanisms of the cytotoxic action of heavy metals are discussed. PMID:24260654

Belousov, Mikhail Vladimirovich; Mashkina, Olga Sergeyevna; Popov, Vasily Nikolayevich

2012-01-01

219

Exposure to domoic acid affects larval development of king scallop Pecten maximus (Linnaeus, 1758).  

PubMed

Domoic acid (DA) is a highly toxic phycotoxin produced by bloom forming marine diatoms Pseudo-nitzschia spp. Bivalves can accumulate this toxin to a high level through their feeding activities, and thus illness or death in can occur in consumers of bivalves. In this study, king scallop, Pecten maximus, larvae were exposed to dissolved domoic acid (DA) for 25d, and the toxin accumulation and effects of harbouring this toxin were investigated. Scallop larvae incorporated DA continuously during the larval culture period and accumulated a maximum DA level of 5.21pgind(-1) when exposed to a solution of 50ngml(-1) dissolved DA. As a result of the DA treatment, larval growth, measured in terms of shell length and the appearance of the eye-spot, and larval survival were significantly compromised. This is the first study on DA incorporation dynamics in P. maximus larvae, signifying the potential of using shellfish larvae for the study on mechanisms of phycotoxin accumulation. The negative effect of DA exposure suggests that this toxin could possibly influence natural recruitment in P. maximus, and it may be necessary to protect hatchery-cultured scallop larvae from DA during toxic Pseudo-nitzschia blooms. PMID:17178425

Liu, Hui; Kelly, Maeve S; Campbell, Dirk A; Dong, Shuang Lin; Zhu, Jian Xin; Wang, Su Feng

2007-02-28

220

Sexual dimorphisms in the dermal denticles of the lesser-spotted catshark, Scyliorhinus canicula (Linnaeus, 1758).  

PubMed

The dermal layers of several elasmobranch species have been shown to be sexually dimorphic. Generally, when this occurs the females have thicker dermal layers compared to those of males. This sexual dimorphism has been suggested to occur as a response to male biting during mating. Although male biting as a copulatory behaviour in Scyliorhinus canicula has been widely speculated to occur, only relatively recently has this behaviour been observed. Male S. canicula use their mouths to bite the female's pectoral and caudal fins as part of their pre-copulatory behaviour and to grasp females during copulation. Previous work has shown that female S. canicula have a thicker epidermis compared to that of males. The structure of the dermal denticles in females may also differ from that of males in order to protect against male biting or to provide a greater degree of friction in order to allow the male more purchase. This study reveals that the length, width and density of the dermal denticles of mature male and female S. canicula are sexually dimorphic across the integument in areas where males have been observed to bite and wrap themselves around females (pectoral fin, area posterior to the pectoral fin, caudal fin, and pelvic girdle). No significant differences in the dermal denticle dimensions were found in other body areas examined (head, dorsal skin and caudal peduncle). Sexually dimorphic dermal denticles in mature S. canicula could be a response to male biting/wrapping as part of the copulatory process. PMID:24116179

Crooks, Neil; Babey, Lucy; Haddon, William J; Love, Adrian C; Waring, Colin P

2013-01-01

221

Risk of predation affects habitat selection by the pinfish Lagodon rhomboides (Linnaeus)  

Microsoft Academic Search

Estuarine fishes are generally much more abundant in structurally-complex seagrass beds than in nearby sand flats. We tested for this pattern by comparing trawl catches from adjacent seagrass beds and sand flats within Turkey Point Shoal, a shallow estuarine system in the northern Gulf of Mexico. Fish abundance in seagrass beds (primarily Thalassia testudinum Konig) was significantly (760%) higher than

Frank Jordan; Mark Bartolini; Christine Nelson; Paula E. Patterson; Heather L. Soulen

1997-01-01

222

MAMMALIAN SPECIES No. 642, pp. 16, 3 figs. Pteropus vampyrus. By Thomas H. Kunz and Deborah P. Jones  

E-print Network

. Photograph by T. H. Kunz. Pteropus vampyrus Linnaeus, 1758 Large Flying Fox Vespertilio vampyrus Linnaeus is a syn- onym). P. v. vampyrus Linnaeus, 1758, see above (celaeno Hermann, ja- vanicus Desmarest

Hayssen, Virginia

223

Bradypus tridactylus (Pilosa: Bradypodidae) VIRGINIA HAYSSEN  

E-print Network

, Northampton, MA 01063, USA; vhayssen@email.smith.edu Abstract: Bradypus tridactylus Linnaeus, 1758 g y . o r g Bradypus tridactylus Linnaeus, 1758 Pale-throated Sloth [Bradypus] tridactylus Linnaeus

Hayssen, Virginia

224

Morphological and Molecular Characterization of Hematodinium perezi (Dinophyceae: Syndiniales), a Dinoflagellate Parasite of the Harbour Crab,  

E-print Network

two portunid crab species, Carcinus mae- nas Linnaeus, 1758, and Liocarcinus depurator Linnaeus, 1758, was described from the Australian sand crab, Portunus pelagicus Linnaeus, 1758. It was determined to be distinct

225

Journal of Natural History Vol. 44, Nos. 12, January 2010, 4180  

E-print Network

Eustylini Lacordaire (Coleoptera: Curculionidae: Entiminae): Compsus argyreus (Linnaeus), Diaprepes abbreviatus (Linnaeus), Eustylus puber (Olivier), Exophthalmus quadrivittatus (Olivier), Exorides wagneri (von described by Linnaeus, pertains to populations that occur along the northern coast of Puerto Rico. Keywords

Franz, Nico M.

226

MAMMALIAN SPECIES No. 788, pp. 17, 3 figs. Hystrix africaeaustralis. By Erika L. Barthelmess  

E-print Network

of the photographer, D. Petefish. Hystrix Linnaeus, 1758 Hystrix Linnaeus, 1758:56. Type species Hystrix cristata; Woods and Kilpatrick 2005). Three sub- genera (Acanthion Cuvier, 1823; Hystrix Linnaeus, 1758; and The

Hayssen, Virginia

227

Phylogeny and Provisional Classification of the Solanaceae Based on Chloroplast DNA  

E-print Network

classification and nomenclature dates to Linnaeus (1753). Linnaeus held a typological view of species, consistent genealogical." Many of the groups recognized in Linnaeus' work (1753) are included in classifications today

Olmstead, Richard

228

J. R. Rooker G. J. Holt S. A. Holt Vulnerability of newly settled red drum (Sciaenops ocellatus)  

E-print Network

Sciaenops ocellatus (Linnaeus) larvae and early juveniles to pin®sh Lagodon rhomboides (Linnaeus) predators complexity and rearing condition war- rant further consideration. Red drum Sciaenops ocellatus (Linnaeus

Rooker, Jay R.

229

Zooarqueologia dos mamferos aquticos e semi-aquticos da Ilha de Santa Catarina, sul do Brasil  

E-print Network

) and b) cetaceans: Eubalaena australis (Desmoulins, 1822), Delphinus delphis Linnaeus,1758, Stenella, 1804.. Three species of semi-aquatic mammals were also recorded: Hydrochoerus hydrochaeris (Linnaeus, 1758), Tapirus terrestris (Linnaeus, 1758) and Lontra longicaudis (Olfers, 1818). Both sites presented

Simões-Lopes, Paulo César

230

Bibliography & natural history; essays presented at a conference convened in June 1964  

E-print Network

the work of the Swedish naturalist Carl Linnaeus (1707-78) belongs to the same period. The two are linked. Influence of Linnaeus Paradoxically Linnaeus, who lived in war-impoverished Sweden, a country without good illustrators and good printers...

Buckman, Thomas R.

1966-01-01

231

Hydrobiologia 477: 195199, 2002. 2002 Kluwer Academic Publishers. Printed in the Netherlands.  

E-print Network

crayfish spe- cies (Astacus astacus Linnaeus and Austropotamobius pallipes Lereboullet) the stone crayfish, 1993; Troschel, 1997). Highest densities of Astacus as- tacus Linnaeus occurred in gravel and stony

Hödl, Walter

232

Bradypus pygmaeus (Pilosa: Bradypodidae) VIRGINIA HAYSSEN  

E-print Network

of Mammalogists Synonymies completed 29 November 2007 w w w . m a m m a l o g y . o r g Bradypus Linnaeus, 1758 Bradypus Linnaeus, 1758:34. Type species Bradypus tridac- tylus Linnaeus, 1758, by subsequent designation Ledru, 1810:257, footnote. Incorrect subsequent spelling of Bradypus Linnaeus. Choloepus: Desmarest

Hayssen, Virginia

233

Capra ibex (Artiodactyla: Bovidae) FRANCESCA PARRINI, JAMES W. CAIN, III, AND PAUL R. KRAUSMAN  

E-print Network

) Abstract: Capra ibex Linnaeus, 1758, is a bovid commonly called the Alpine ibex that is sexually dimorphic of Mammalogists Synonymies completed 15 October 2008 w w w . m a m m a l o g y . o r g Capra Linnaeus, 1758 Capra Linnaeus, 1758:68. Type species Capra hircus Linnaeus, 1758, by Linnaean tautonomy. Hircus Brisson, 1762

Hayssen, Virginia

234

2008 THE GREAT LAKES ENTOMOLOGIST 103 University of Illinois, Urbana-Champaign, Department of Entomology, 320 Morrill  

E-print Network

of Vanessa cardui Linnaeus (Lepidoptera: Nymphalidae) on Glycine max Linnaeus (soybean) foliage grown under. In this study, we examined the growth and survivorship of larvae of Van- essa cardui Linnaeus, the painted lady butterfly (Lepidoptera: Nymphalidae), on Glycine max Linnaeus (soybean) foliage grown under elevated

DeLucia, Evan H.

235

Event based Control for Distributed Systemsy  

E-print Network

Event based Control for Distributed Systemsy Karl H. Johansson and Maben Rabi ACCESS Linnaeus CentreACCESS Linnaeus Centre Electrical Engineering, Royal Institute of Technology Stockholm Sweden and Estimation June 2 5, 2009, Noordwijkerhout ACCESS Linnaeus CentreACCESS Linnaeus Centre · One of Europes

Johansson, Karl Henrik

236

Wireless Control: Opportunities and Challengespp g  

E-print Network

Wireless Control: Opportunities and Challengespp g Karl Henrik Johansson ACCESS Linnaeus Centre School of Electrical EngineeringACCESS Linnaeus Centre, School of Electrical Engineering Royal Institute Sahlholm Automationsdagarna, Stockholm, 4 5 Feb, 2009 ACCESS Linnaeus CentreACCESS Linnaeus Centre · One

Johansson, Karl Henrik

237

Introduction: What's in a name? As Shakespeare asked, "What's in a name? That which we  

E-print Network

and popularised by a rather scruffy Swedish doctor, born exactly three hundred years ago: Carl Linnaeus. Linnaeus Linnaeus was born in the Småland province of southern Sweden on 23 May 1707. He wrote about everything, from diseases to minerals to anthropology, but nowadays Linnaeus is mainly remembered as a naturalist

Viglas, Anastasios

238

Choloepus hoffmanni (Pilosa: Megalonychidae) VIRGINIA HAYSSEN  

E-print Network

Bradypus Linnaeus, 1758:34. Part. Myrmecophaga Linnaeus, 1758:35. Part. Choloepus Illiger, 1811:108. Type species Bradypus didactylus Linnaeus, 1758, by subsequent designation (Gray 1827:275). Unaues Rafinesque:305. Type species Bradypus didactylus Linnaeus, 1758, by monotypy. Cholaepus Schinz, 1821:328. Incorrect

Hayssen, Virginia

239

Leopardus braccatus (Carnivora: Felidae) ANITA L. BARSTOW AND DAVID M. LESLIE, JR.  

E-print Network

Leopardus Gray, 1842 Felis Linnaeus, 1758:41. Part (Felis pardalis Linnaeus, 1758). Leopardus Forska�l, 1775, 1816]). Leopardus Gray, 1842:260. Type species Leopardus griseus Gray, 1842 (5 Felis pardalis Linnaeus, 1858:386. Type species Felis pardalis Linnaeus, 1758, by subsequent designation (Allen 1905

Hayssen, Virginia

240

MAMMALIAN SPECIES No. 715, pp. 19, 3 figs. Canis mesomelas. By Lyle R. Walton and Damien O. Joly  

E-print Network

of Mammalogists, taken by J. G. Hall, 1973. Canis Linnaeus, 1758 Canis Linnaeus, 1758:38. Type species Canis familiaris ( Canis lupus Linnaeus). Thos Oken, 1816:1037. Type species Thos vulgaris ( Canis au- reus Linnaeus). Not available according to Opinion 417, In- ternational Commission on Zoological Nomenclature

Hayssen, Virginia

241

u. S. DEPARTMENT OF COMMERCE Daniel C. Roper, Secretary  

E-print Network

- ilD _ Snake eel, Pisodonophis {ruentijcr Goode and Bean _ Herring, Clupea harengus Linnaeus _ Alewife scombrus Linnaeus _ Tuna, Thunnus thynnus (Linnaeus) _ Common bonito, Sarda sarda (Bloch) _ Spearfish, marlin, Makaira albida (Poey)_ Swordfish, X iphias gladiu8 Linnaeus _ Pilotfish, Naucrate8 ductor

242

Mercury in wild terrestrial carnivorous mammals from north-western Poland and unusual fish diet of red fox  

Microsoft Academic Search

Total mercury concentrations were determined in the kidney (K), liver (L), and pectoral muscle (M) of 19 individuals representing\\u000a wild carnivorous mammals from NW Poland: 10 red foxes Vulpes vulpes (Linnaeus, 1758), 3 raccoon dogs Nyctereutes procyonoides Gray, 1834, 2 badgers Meles meles Linnaeus, 1758, 3 pine martens Martes martes Linnaeus, 1758, and 1 polecat Mustela putorius Linnaeus, 1758. The

El?bieta Kalisi?ska; Piotr Lisowski; Wies?aw Salicki; Teresa Kucharska; Katarzyna Kavetska

2009-01-01

243

Age and growth of the blue shark, Prionace glauca Linnaeus, 1758, in the Northwest coast off Mexico Edad y crecimiento del tiburón azul, Prionace glauca Linnaeus, 1758, en la costa noroeste de México  

Microsoft Academic Search

The blue shark is one of the main species caught in the artisanal fisheries in the northwest coast of Mexico. The age and growth was estimated by counting the growth bands on vertebral centra stained with silver nitrate from 204 sharks. Shark sizes ranged from 81 to 270 cm total length (TL), with a mean of 165 ± 35 cm

María del Pilar Blanco-Parra; Felipe Galván-Magaña; Fernando Márquez-Farías

2008-01-01

244

Identification of a Novel Metalloproteinase and Its Role in Juvenile Development of the Tobacco Hornworm, Manduca sexta (Linnaeus)  

PubMed Central

Matrix metalloproteinases (MMPs) are a class of zinc-dependent endopeptidases that are highly conserved across numerous taxa, from bacteria to humans. Recently, MMPs have been identified in several insect species and are hypothesized to function in immunity and development. In this study, we identify a putative MMP and correlate its proteolytic activity and gene and protein expression in the tracheae with developmental stage. Ms-MMP gene expression increases 10-fold during molting, which is accompanied by an increase in both protein expression and gelatinolytic activity. To directly test the hypothesis that Ms-MMP plays a critical role in juvenile development of Manduca sexta, we injected a broad-spectrum MMP inhibitor and recorded its effects on growth and development. Inhibition of MMPs caused a delay in juvenile development and decreased growth rates. Understanding the function of MMPs will help us better understand molting and control of body size in insects. Furthermore, elucidating functions for MMPs in lower taxa may yield critical information about the evolution of the numerous MMPs found in vertebrates. J. Exp. Zool. (Mol. Dev. Evol.) 320B:105–117, 2013. © 2013 Wiley Periodicals, Inc. PMID:23475557

Vishnuvardhan, Smitha; Ahsan, Rubina; Jackson, Kathryn; Iwanicki, Rebecca; Boe, Jordan; Haring, Jodie; Greenlee, Kendra J

2013-01-01

245

Ontogenetic profile of innate immune related genes and their tissue-specific expression in brown trout, Salmo trutta (Linnaeus, 1758).  

PubMed

The innate immune system is a fundamental defense weapon of fish, especially during early stages of development when acquired immunity is still far from being completely developed. The present study aims at looking into ontogeny of innate immune system in the brown trout, Salmo trutta, using RT-PCR based approach. Total RNA extracted from unfertilized and fertilized eggs and hatchlings at 0, 1 h and 1, 2, 3, 4, 5, 6, 7 weeks post-fertilization was subjected to RT-PCR using self-designed primers to amplify some innate immune relevant genes (TNF-?, IL-1?, TGF-? and lysozyme c-type). The constitutive expression of ?-actin was detected in all developmental stages. IL-1? and TNF-? transcripts were detected from 4 week post-fertilization onwards, whereas TGF-? transcript was detected only from 7 week post-fertilization onwards. Lysozyme c-type transcript was detected early from unfertilized egg stage onwards. Similarly, tissues such as muscle, ovary, heart, brain, gill, testis, liver, intestine, spleen, skin, posterior kidney, anterior kidney and blood collected from adult brown trout were subjected to detection of all selected genes by RT-PCR. TNF-? and lysozyme c-type transcripts were expressed in all tissues. IL-1? and TGF-? transcripts were expressed in all tissues except for the brain and liver, respectively. Taken together, our results show a spatial-temporal expression of some key innate immune-related genes, improving the basic knowledge of the function of innate immune system at early stage of brown trout. PMID:23765117

Cecchini, Stefano; Paciolla, Mariateresa; Biffali, Elio; Borra, Marco; Ursini, Matilde V; Lioi, Maria B

2013-09-01

246

Chemistry of the sternal gland secretion of the Mediterranean centipede Himantarium gabrielis (Linnaeus, 1767) (Chilopoda: Geophilomorpha: Himantariidae)  

NASA Astrophysics Data System (ADS)

The geophilomorph centipede, Himantarium gabrielis, when disturbed, discharges a viscous and proteinaceous secretion from the sternal glands. This exudate was found by gas chromatography-mass spectrometry, liquid chromatography-high resolution mass spectrometry, liquid chromatography-mass spectrometry-mass spectrometry and NMR analyses to be composed of hydrogen cyanide, benzaldehyde, benzoyl nitrile, benzyl nitrile, mandelonitrile, mandelonitrile benzoate, 3,7,6 O-trimethylguanine (himantarine), farnesyl 2,3-dihydrofarnesoate and farnesyl farnesoate. This is the first report on the presence of benzyl nitrile and mandelonitrile benzoate in secreted substances from centipedes. Farnesyl 2,3-dihydrofarnesoate is a new compound, while himantarine and farnesyl farnesoate were not known as natural products. A post-secretion release of hydrogen cyanide by reaction of mandelonitrile and benzoyl nitrile was observed by NMR, and hydrogen cyanide signals were completely assigned. In addition, a protein component of the secretion was analysed by electrophoresis which revealed the presence of a major 55 kDa protein. Analyses of the defensive exudates of other geophilomorph families should produce further chemical surprises.

Vujisi?, Ljubodrag V.; Vu?kovi?, Ivan M.; Makarov, Slobodan E.; Ili?, Bojan S.; Anti?, Dragan Ž.; Jadranin, Milka B.; Todorovi?, Nina M.; Mrki?, Ivan V.; Vajs, Vlatka E.; Lu?i?, Luka R.; ?ur?i?, Božidar P. M.; Miti?, Bojan M.

2013-09-01

247

Diverse Microbiota Identified in Whole Intact Nest Chambers of the Red Mason Bee Osmia bicornis (Linnaeus 1758)  

PubMed Central

Microbial activity is known to have profound impact on bee ecology and physiology, both by beneficial and pathogenic effects. Most information about such associations is available for colony-building organisms, and especially the honey bee. There, active manipulations through worker bees result in a restricted diversity of microbes present within the colony environment. Microbial diversity in solitary bee nests remains unstudied, although their larvae face a very different situation compared with social bees by growing up in isolated compartments. Here, we assessed the microbiota present in nests and pre-adults of Osmia bicornis, the red mason bee, by culture-independent pyrosequencing. We found high bacterial diversity not comparable with honey bee colonies. We identified a variety of bacteria potentially with positive or negative interactions for bee larvae. However, most of the other diverse bacteria present in the nests seem to originate from environmental sources through incorporated nest building material and stored pollen. This diversity of microorganisms may cause severe larval mortality and require specific physiological or symbiotic adaptations against microbial threats. They may however also profit from such a diverse environment through gain of mutualistic partners. We conclude that further studies of microbiota interaction in solitary bees will improve the understanding of fitness components and populations dynamics. PMID:24205188

Keller, Alexander; Grimmer, Gudrun; Steffan-Dewenter, Ingolf

2013-01-01

248

SEM studies on immature stages of the drone flies (diptera, syrphidae): Eristalis similis (Fallen, 1817) and Eristalis tenax (Linnaeus, 1758).  

PubMed

Adult drone flies (Syrphidae: Eristalis spp.) resemble male honeybees in appearance. Their immature stages are commonly known as rat-tailed maggots due to the presence of a very long anal segment and a telescopic breathing tube. The larvae are associated with decaying organic material in liquid or semi-liquid media, as in the case of other saprophagous eristalines. Biological and morphological data were obtained from both laboratory cultures and sampling in the field. Drone flies are important pollinators for wild flowers and crops. In fact, mass rearing protocols of Eristalis species are being developed to be used as efficient alternative pollinators. However, deeper knowledge of larval morphology and biology is required to improve artificial rearing. The production quality control of artificial rearing must manage the consistency and reliability of the production output avoiding, for example contamination with similar species. This article presents the first description of the larva and puparium of E. similis, including a comparative morphological study of preimaginal stages of the anthropophilic and ubiquitous European hoverfly species E. tenax. Scanning electron microscopy has been used for the first time to describe larvae and puparia of both species. Moreover, the preimaginal morphology of E. similis has been compared with all known descriptions of the genus Eristalis. The main diagnostic characters of the preimaginal stages of E. similis are the morphology of the anterior spiracles (shape of clear area and arrangement of facets) and pupal spiracles (length, shape, and arrangement of tubercles). PMID:23733631

Pérez-Bañón, Celeste; Hurtado, Pilar; García-Gras, Elena; Rojo, Santos

2013-08-01

249

The wild boar (Sus scrofa Linnaeus, 1758) as secondary reservoir of Fasciola hepatica in Galicia (NW Spain).  

PubMed

Fasciolosis is an emerging or reemerging human and animal disease in numerous parts of the world. In Galicia (NW, Spain), the wild boar (Sus scrofa) is the main wild ungulate in terms of abundance and distribution. Its population has continuously increased over the past decades and this population growth has been accompanied by a reduction of habitats, so that the wild boar populations encroach more and more frequently onto agricultural lands. The increase of the interface area between livestock and the wild boars frequently involves the sharing of pastures and water sources, so that the circulation of common pathogens is propitiated. This is the first report concerning the importance of the wild boar as a possible reservoir of Fasciola hepatica infection in Spain. Livers from 358 hunted wild boars were analyzed showing that 11.2% were parasitized by F. hepatica, with burdens ranging from 1 to 14 flukes (mean=2.3). Fecal analysis demonstrated that 40.0% of parasitized animals shed F. hepatica eggs with a mean excretion of 6.1 eggs per gram of feces (epg). The presence of coproantigens analyzed by MM3-COPRO ELISA was positive in 62.9% of infected wild boars. After incubation, the percentage of hatched eggs ranged between 41.0% and 90.0% suggesting that the wild boar is very likely to contribute to the environmental contamination with viable parasite eggs. Comparative morphometric data were obtained using a computer image analysis system (CIAS) on the basis of standardized measurements. F. hepatica from cattle, sheep and wild boars from the same geographical area presents a similar body development and gravidity. Our study shows for the first time that the F. hepatica uterus from the wild boar presents an intermediate size between that found in primary reservoir hosts such as cattle and sheep, i.e., the individual potential egg output capacity of the wild boar does not greatly differ from that detected in Galician livestock. These results show that F. hepatica in Galicia has a normal development in wild boars, presenting its own characteristics in shape and size in comparison with other host species. The high prevalence of infection detected in the wild boar, the normal fluke development in the liver, and the possibility of shedding F. hepatica eggs capable of embryonating and giving rise to viable miracidia with the potential to infect intermediate hosts suggest a possible role of this species as a secondary reservoir in this Spanish region. PMID:24103736

Mezo, Mercedes; González-Warleta, Marta; Castro-Hermida, José Antonio; Manga-González, M Yolanda; Peixoto, Raquel; Mas-Coma, Santiago; Valero, M Adela

2013-12-01

250

Sexual Shape Dimorphism of the Mangrove Crab Ucides cordatus (Linnaeus, 1763) (Decapoda, Ucididae) Accessed through Geometric Morphometric  

PubMed Central

Sexual dimorphism is often observed in Crustaceans. Considering the great diversity of this subphylum, only few reports are found in the literature and most are mainly based on traditional morphometry. The present study uses geometric morphometrics analysis to identify sexual dimorphism by shape variation in the overexploited semiterrestrial crab Ucides cordatus, species with great social and economic importance in South America. Comparative morphology analyses were performed by using the outer face of the propodus of major cheliped, dorsal and anterior region of carapace shape. Significant differences in shape between sexes were detected in these body areas. The causes of dimorphism presented in this species are not clear but, analogous to other possibly associated species, it may be inferred that the causes are with adaptations to body ability of reproductive potential (females), and of reproductive behaviour and agonistics encounters (males). Additional analyses on courtship displays and other reproductive aspects should provide better comprehension of functionality of this morphological differentiation. PMID:25383362

Alencar, C. E. R. D.; Lima-Filho, P. A.; Molina, W. F.; Freire, F. A. M.

2014-01-01

251

Brain anatomy of the marine isopod Saduria entomon Linnaeus, 1758 (Valvifera, Isopoda) with special emphasis on the olfactory pathway.  

PubMed

Representatives of at least six crustacean taxa managed to establish a terrestrial life style during their evolutionary history and the Oniscidea (Isopoda) are currently held as the most successfully terrestrialized malacostracan crustaceans. The brain architecture of terrestrial isopods is fairly well understood and studies on this field suggest that the evolutionary transition from sea to land in isopods coincided with a considerable size reduction and functional loss of their first pair of antennae and associated brain areas. This finding suggests that terrestrial isopods may have no or poor abilities to detect volatile substances but that their chemosensory ecology is most likely restricted to contact chemoreception. In this study, we explored how the brain of a marine isopod and particularly its olfactory system compares to that of terrestrial relatives. Using histochemical and immunohistochemical labeling, brightfield and confocal laser-scan microscopy, we show that in the marine isopod Saduria entomon aesthetascs on the first pair of antennae provide input to a well defined deutocerebrum (DC). The deutocerebral chemosensory lobes (DCL) are divided into spherical neuropil compartments, the olfactory glomeruli (og). Secondary processing areas in the lateral protocerebrum (lPC) are supplied by a thin but distinct projection neuron tract (PNT) with a contralateral connection. Hence, contrary to terrestrial Isopoda, S. entomon has at least the neuronal substrate to perceive and process olfactory stimuli suggesting the originally marine isopod lineage had olfactory abilities comparable to that of other malacostracan crustaceans. PMID:24109435

Kenning, Matthes; Harzsch, Steffen

2013-01-01

252

Helminth fauna of the stoat (Mustela erminea Linneaus, 1758) and the weasel (M. nivalis Linnaeus, 1758) in Belorussian Polesie.  

PubMed

Helminthological examinations of 30 stoat and 31 weasel carcasses were carried out in Belorussian Polesie (southern part of Belarus, Brest and Gomel regions) between 1980 and 1999. The total rate of helminth infection of these animals was 78.7%. A total of 23 stoats and 25 weasels were infected by helminths. The animals were hosts for 20 species of helminths. PMID:11511009

Shimalov, V V; Shimalov, V T

2001-08-01

253

Age, Growth, Reproduction and Feeding of the Spurdog ( Squalus acanthias Linnaeus, 1758) in the South-eastern Black Sea  

NASA Astrophysics Data System (ADS)

Life-history parameters and diet of spurdog ( Squalus acanthias) sampled from the SE Black Sea were studied. Spurdog from age classes I to XIV were identified, with a dominance of age class VIII for both sexes. The length-weight relationship was W=0·0040*L 2·95and the mean annual growth rates in length and weight were 7·2 cm and 540·1 g, respectively. The estimated von Bertalanffy growth parameters were: W ?=12021 (g), L ?=157 (cm), K=0·12 (year -1) and t 0=-1·30 (year). The size at first maturity was 82 cm for males and 88 cm for females. Mean biennial fecundity was also found to be 8 pups/female. The relationships between fecundity-length, fecundity-weight and fecundity-age were found to be: F=-17·0842+0·2369*L (R=0·93), F=0·3780+0·0018*W (R=0·89) and F =-0·7859+1·1609*A (R=0·94) respectively. The spurdog can be considered an opportunistic feeder. Their natural diet was composed mainly of teleost fishes, followed by Crustaceans, Nematodes and Actinarians (=sea anemones). Whiting ( Merlangius merlangus euxinus) was the predominant prey item among their fish prey. Demersal teleosts formed the majority of the diet, and there was no difference ( P>0·05) among the food items of immature, maturing and mature individuals of both sexes.

Avsar, D.

2001-02-01

254

Habitat-related predation on juvenile wild-caught and hatchery-reared red drum Sciaenops ocellatus (Linnaeus)  

Microsoft Academic Search

We examined the patterns of habitat-specific mortality for newly settled red drum (Sciaenops ocellatus) using an experimental mesocosm approach. Experiments were designed to analyze prey vulnerability and fish rearing-type (wild-caught or hatchery-reared) in estuarine habitats of varying structural complexity including marsh (Spartina alterniflora Loisel), oyster reef (Crassostrea virginica Gmelin), seagrass (Halodule wrightii Aschers), and nonvegetated sand bottom. We used two

Gregory W. Stunz; Thomas J. Minello

2001-01-01

255

Inorganic nitrogen and its effect on growth of the abalone Haliotis tuberculata Linnaeus and the sea urchin Paracentrotus lividus Lamarck  

Microsoft Academic Search

The abalone, Haliotis tuberculata (7–12 g), and the sea urchin, Paracentrotus lividus (3–6 g), reared in a closed system were exposed for 2 weeks to various levels of ammonia (0, 0.5, 1.0, 5.0, 10.0 mg N–NH3–4 l?1), nitrite (0, 0.5, 1.0, 2.0, 5.0 mg N–NO2 l?1) and nitrate (0, 25, 50, 100, 250 mg N–NO3 l?1). For these concentrations, no

Olivier Basuyaux; Michel Mathieu

1999-01-01

256

Establishment of the green mussel, Perna viridis (Linnaeus 1758) (Mollusca: Mytilidae) on the West Coast of Florida  

USGS Publications Warehouse

In 1999, the green mussel, Perna viridis, was first observed in Tampa Bay, Florida. This was the first reported occurrence of this Indo-Pacific marine bivalve in North America. The mussels found in Tampa Bay were confirmed to be P. viridis based on both morphological and genetic characteristics. Since the initial discovery, surveys in Tampa Bay and on the west coast of Florida have documented the growth, recruitment, and range expansion of P. viridis. From November 1999 to July 2000, the mean shell length of a Tampa Bay population increased from 49.0 mm to 94.1 mm, an increase of 97%. Populations of P. viridis are successfully reproducing in Tampa Bay. Recruitment was observed on sampling plates in May and continued through July 2000. The full extent of mussel colonization is not clear, but mussels were found outside Tampa Bay in St. Petersburg, Florida, south to Venice. Based on these studies it is evident that P. viridis has successfully invaded Tampa Bay and the west coast of Florida. The long-term impact of P. viridis on native communities off the west coast of Florida cannot be predicted at this time.

Benson, A. J.; Marelli, D. C.; Frischer, M. E.; Danforth, J. M.; Williams, J. D.

2001-01-01

257

The effects of crowding on growth of the European cuttlefish, Sepia officinalis Linnaeus, 1758 reared at two temperatures  

Microsoft Academic Search

The objective of this study was to examine the impact of crowding (stocking density) on food consumption and growth of juvenile Sepia officinalis reared at 17 and 25 °C. Two groups of 75 cuttlefish each were reared in closed seawater systems with water temperatures of 17 and 25 °C. Each group was subdivided into two treatments (three replicates per treatment):

John Forsythe; Phillip Lee; Leigh Walsh; Tara Clark

2002-01-01

258

Inapparent Virus Infections and their Interactions in Pupae of the Honey Bee (Apis mellifera Linnaeus) in Australia  

Microsoft Academic Search

SUMMARY When honey bee pupae from seemingly healthy Australian colonies were injected with various salt solutions, inapparent infections of black queen-cell virus (BQCV), Kashmir bee virus (KBV), sacbrood virus (SBV) and, occasionally, cricket paralysis virus were activated. The activated viruses replicated to detectable concentrations after pupae were incubated at 35 °C for 3 days. Inapparent infections of SBV, but not

D. L. Anderson; A. J. Gibbs

1988-01-01

259

Age, Growth, and Structure of Vertebra in the School Shark Galeorhinus galeus (Linnaeus, 1758) from Southern Brazil  

Microsoft Academic Search

Age and growth of the school shark Galeorhinusgaleus was studied from rings in the verte­ bra and length-frequency data. Sam­ ples were collected by trawling off the southern Brazilian coast from June 1980 to September 1986. Histo­ logical studies were also conducted on the characteristics of the verte­ bra. Standard histological techniques and microradiography were used to determine the pattern

Carolus Maria Vooren; Beatrice Padovanl Ferreira

260

The feeding habits of three Mediterranean sea anemone species, Anemonia viridis (Forskål), Actinia equina (Linnaeus) and Cereus pedunculatus (Pennant)  

NASA Astrophysics Data System (ADS)

The feeding habits of the Mediterranean sea anemones Cereus pedunculatus, Actinia equina and Anemonia viridis were examined mainly by analysing their coelenteron contents. The three species are opportunistic omnivorous suspension feeders. Main source of food for A. viridis and C. pedunculatus are crustaceans (mainly amphipods and decapods, respectively), while for the midlittoral species A. equina, it is organic detritus. Using the same method, the temporal and spatial changes in the diet of A. viridis were examined. During the whole year, crustaceans seem to be the main source of food for A. viridis. The diet composition of this species, however, differs remarkably in space, possibly reflecting the different composition of the macrobenthic organismic assemblages in different areas. The data collected are compared with the limited bibliographical information.

Chintiroglou, Ch.; Koukouras, A.

1992-03-01

261

The effects of size grading and stocking density on growth performance of juvenile abalone, Haliotis tuberculata Linnaeus  

Microsoft Academic Search

The effects of size grading and stocking density on the growth of juvenile European abalone, Haliotis tuberculata L. (Gastropoda: Haliotidae) were assessed in the hatchery. Animals were held in cages deployed in a flowtray with recirculating seawater maintained at 18 ± 2 °C, and fed ad libitum on the red alga Palmaria palmata (L.) Kuntze. In the grading experiment juvenile

Yunus D. Mgaya; John P. Mercer

1995-01-01

262

Local variation in susceptibility of the diamondback moth, Plutella xylostella (Linnaeus) to insecticides and role of detoxification enzymes  

Microsoft Academic Search

The susceptibility of five different field populations of the diamondback moth collected as larvae within 15km radius of Ottanchathiram and of the IARI 17-65 laboratory strain to Biobit© (Bacillus thuringiensis var. kurstaki HD-1), cartap, Cry1Ab, fenvalerate, fipronil, flufenoxuron and RH 2485 was studied using cabbage leaf disc feeding bioassays. All field populations were highly tolerant to fenvalerate and flufenoxuron compared

M Mohan; G. T Gujar

2003-01-01

263

Three centuries of temperature records in Scotland preserved in sclerochronological archives from freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758)  

NASA Astrophysics Data System (ADS)

Bivalves are natural indicators of environmental variability as they reflect environmental conditions such as temperature in growth bands within the shell. During the winter period in temperate climes, shell growth ceases owing to the low water temperature and limited food supply. This hiatus is revealed by chemical staining as a very distinct etch-resistant band - termed the winter line. Winter lines alternate with less etch-resistant bands thus providing a chronology for any analyses which can be correlated to other proxy series and instrumental data. Freshwater pearl mussels have also been shown to form their shells in oxygen isotopic equilibrium with the ambient water thus fluctuations in water temperature can be constrained from the ^18Ocarbonatedata. As long as the date of collection is known, annual growth increments provide a precise dating tool for isotope samples and allow the allocation of precise calendar years to each part of the shell. Measurements of consecutive increments serve as records of isotopic composition from which derived temperatures may be correlated with other sample series and annual instrumental records, giving a high resolution proxy for temperature for a given region. ....... The use of live-collected M. margaritifera shells is now prohibited in the UK due to the mussel's rarity and its protection under the Wildlife and Countryside Act (1981) and the European Union Habitats and Species Directive (EUHSD). Museum collections of freshwater pearl mussels thus provide an invaluable resource, with many collections in UK museums having been live-collected during 19th century. As M. margaritifera is one of the longest-lived invertebrates, attaining an age of up to 140 years, sclerochronological and ^18Oaragonite data have the potential to provide terrestrial climate records on the centennial scale. The use of museum specimens has the potential to establish a composite three hundred year record of Scottish environmental change. Shells from several localities in Scotland dating from the late 1700s to the present were sampled and the results compiled to construct a composite record of temperature change prior to and during the anthopogenically-induced contribution to climate change. The breadth of the collections used and the sampling protocol employed allows the examination of intra-individual and intraspecific variability in ^18Oaragonite data from contemporaneous individuals from the same locality. Results have implications for the use of archaeological and subfossil shells in the reconstruction of past climates.

Pannell, C. L., ,, Dr; Fallick, A. E., ,, Prof.

2009-04-01

264

Effects of a mixture of non-ortho- and mono-ortho-polychlorinated biphenyls on reproduction in Fundulus heteroclitus (Linnaeus)  

SciTech Connect

To assess the effects of polychlorinated biphenyls (PCBs) on reproduction, female Fundulus heteroclitus were exposed to a mixture of non-ortho- and mono-ortho-PCBs, mimicking the mixture found in fish collected from New Bedford Harbor, Massachusetts, USA, a PCB-contaminated estuary. Exposure was by intraperitoneal injection of the mixture dissolved in corn oil. Doses of 0.76, 3.8, and 19 {micro}g PCB mixture per gram of wet weight produced liver concentrations of 2.99, 12.2, and 32.8 {micro}g non-ortho- and mono-ortho-PCBs per gram of dry liver, with dioxin toxic equivalency concentrations (TEQs) of 0.0963, 0.409, and 0.720 ng/g, respectively. Female mortality was 58%, and egg production was reduced by 77% at the highest dose, compared to controls. Food consumption declined with increasing PCB concentration, suggesting that PCBs act indirectly to reduce fecundity through an energetic effect. Pituitary gonadotropin content appeared to be suppressed at the highest dose, but the ability of ovarian follicles to produce estradiol and testosterone in vitro was not impaired. Significant residue-effects linkages were found, with TEQ emerging as a potential indicator of adverse effects. Mortality was directly related, and egg production was inversely related to log{sub 10}TEQ. Multiple regression analysis indicated that egg production was directly related to pituitary gonadotropin content and food consumption.

Black, D.E.; Gutjahr-Gobell, R.; Pruell, R.J.; Bergen, B. [Environmental Protection Agency, Narragansett, RI (United States); McElroy, A.E. [State Univ. of New York, Stony Brook, NY (United States). Marine Sciences Research Center

1998-07-01

265

Age, Growth and Feeding Habits of the Brown Comber Serranus hepatus(Linnaeus, 1758) on the Cretan Shelf  

NASA Astrophysics Data System (ADS)

Forty-five samples of the brown comber Serranus hepatuswere collected during experimental surveys carried out on a monthly basis (August 1990 to August 1992) along the Cretan continental shelf. A total of 1268 specimens 31-140 mm in total length were analysed. Growth was well described by both standard and seasonalized forms of the von Bertalanffy growth model and the computed parameters were L?;=152 mm, k=0·36, t0=-0·57. Feeding intensity was high throughout the study period and varied significantly among the age classes of fish examined. Stomach content analysis revealed that S. hepatusis carnivorous, feeding mainly on decapods. Diets did not vary seasonally; decapods were the most important prey throughout the year. However, the composition of the prey consumed varied considerably with predator age coupled with differences in mean prey sizes utilized by each age class. The mean weight of stomach contents increased significantly for older specimens, while the mean number of prey items decreased. Age-specific dietary selection was primarily a function of body size of the predator and appears to reduce intra-specific competition among the members of the different age classes. The results suggest that S. hepatusplays an important trophic role as a macrophagic carnivorous species on the Cretan continental shelf.

Labropoulou, M.; Tserpes, G.; Tsimenides, N.

1998-05-01

266

Senilia senilis (Linnaeus, 1758), a biogenic archive of environmental conditions on the Banc d'Arguin (Mauritania)  

NASA Astrophysics Data System (ADS)

Environmental archives are useful tools for describing past and current climate variations and they provide an opportunity to assess the anthropogenic contribution in coastal ecological changes. Along the West African coast, few studies have focused on such archives in coastal ecosystems. The bloody cockle Senilia senilis, an intertidal bivalve mollusk species, is widely distributed from Western Sahara to Angola, and has been harvested by humans over thousands of years. Therefore, this species appears to be a good candidate for assessing past variations of key environmental parameters such as temperature, primary production, and Saharan dust advection within West African coastal ecosystems. In the present paper, we focused (i) on the identification of growth rhythms of S. senilis shells in Mauritania (Banc d'Arguin), and (ii) on the potential of these shells as (paleo-)environmental archives. The method we used combined environmental survey, sclerochronology, and geochemical analyses of aragonite samples. We showed that microgrowth line formation was controlled by a tidal forcing, leading to the formation of two lines per lunar day. Brightness and thickness of these microgrowth lines progressively decreased from spring to neap tides (fortnightly cycle). Lunar daily growth rates displayed strong seasonal variations, with highest values (> 300 ?m per lunar day) recorded in summer. The oxygen isotope composition of S. senilis shells (?18Oaragonite) accurately tracked seawater temperature seasonal variations, with a precision of 0.8 °C. Finally, we discussed the opportunity to use Ba:Ca ratio in shells as a proxy for primary production or for Saharan dust transport. We also hypothesized that either Canary Currentvariations or, more probably, massive aerosol transfers from Sahara to the Atlantic Ocean could control uranium availability in coastal waters and explain the occurrence of U:Ca peaks within S. senilis shells.

Lavaud, Romain; Thébault, Julien; Lorrain, Anne; van der Geest, Matthijs; Chauvaud, Laurent

2013-02-01

267

Effect of Acute Exposure of the Organophosphate Insecticide Rogor on Some Biochemical Aspects of Clarias batrachus(Linnaeus)  

Microsoft Academic Search

Indian catfish (Clarias batrachus), a common fish of commercial importance, was exposed to a sublethal concentration (1\\/3 of 96 h LC50 value) of Rogor for periods ranging from 24 to 192 h. The changes in glycogen, lactate, lactate dehydrogenase, and glycogen phosphorylase (a,ab) contents of muscle tissue were studied. A gradual decrease in muscle glycogen and an increase in lactate

Ghousia Begum; Shantha Vijayaraghavan

1999-01-01

268

Ecomorphic variation in gemmoscleres of Ephydatia fluviatilis Linnaeus (Porifera: Spongillidae) with comments upon its systematics and ecology  

Microsoft Academic Search

An ecological and taxonomic investigation of Ephydatia fluviatilis was conducted. E. fluviatilis was found in alkaline fresh waters and slightly brackish waters. Extreme variation was found in the gemmoscleres of E. fluviatilis from different Louisiana habitats. The variation appeared to be ecomorphic and related to the chemical characteristics of the habitats. Laboratory investigations, based on the formation of gemmules by

Michael A. Poirrier

1974-01-01

269

Histopathological and genotoxic effects of pollution on Nile Tilapia (Oreochromis niloticus, Linnaeus, 1758) in the Billings Reservoir (Brazil).  

PubMed

The Billings Reservoir shows eutrophic waters due to the large amount of sewage, and consequently, the fish can be a problem for public health. Thus, this project aimed to analyze the histological gills and liver of Nile tilapia to verify morphological changes caused by environment, and the frequency of micronuclei was done, to observe the response to genotoxic activity. We observed histological alterations in gills and livers of Nile Tilapia classified as mild to severe, and the presence of micronucleus. The results enable better environmental monitoring and quality control of this species. PMID:24835316

Rezende, Karina Fernandes Oliveira; Santos, Rubens Martins; Borges, João Carlos Shimada; Salvo, Lígia Maria; da Silva, José Roberto Machado Cunha

2014-09-01

270

[The helminth fauna of red foxes (Vulpes vulpes Linnaeus 1758) in north Hesse and east Westphalia. 1. Cestodes].  

PubMed

Between November 1989 and June 1990 a total number of 397 foxes were examined for the presence of cestodes. The animals came from the districts of Arnsberg, Detmold and Kassel. In 16.4% of the foxes infections with Echinococcus multilocularis were found, in 28.5% Taenia crassiceps, in 14.4% Taenia polyacantha, in 4.3% Mesocestoides spp., in 3.3% Multiceps multiceps, in 2.5% Hydatigera taeniaeformis, in 0.8% Taenia hydatigena and in 0.3% Taenia martis. Infections with Echinococcus multilocularis very often showed high worm numbers of more than 1000 per fox. The number of worms for the other cestodes mostly varied between one and ten specimen per animal. PMID:1396164

Ballek, D; Takla, M; Ising-Volmer, S; Stoye, M

1992-09-01

271

I can think of few changes that I would make beyond correcting a few proofreading lapses (Linnaeus's great  

E-print Network

­ and the back feathers, i.e. the train, of peacocks.) Coyne is clearly skeptical of most of evolution- ary'? The historical contingency of evol- ution is exemplified by the variety of elongated display feathers among birds, which do include tail feathers in many other species, but also the flank feathers of Para- disaea birds

Galef Jr., Bennett G.

272

Sperm reflux and its role in multiple mating in males of a butterfly Polygonia c-aureum Linnaeus (Lepidoptera: Nymphalidae)  

Microsoft Academic Search

The relationship between sperm quantity in the duplex and that in the vasa deferentia was examined in the Asian comma butterfly, Polygonia c-aureum. In virgin males, the number of eupyrene sperm bundles in the duplex increased linearly with age, whereas that in the vasa deferentia was consistently small. However, numerous sperm were found in the vasa deferentia of males immediately

Satoshi Hiroyoshi; Jun Mitsuhashi

1999-01-01

273

Sperm reflux and its role in multiple mating in males of a butterfly Polygonia c-aureum Linnaeus (Lepidoptera: Nymphalidae).  

PubMed

The relationship between sperm quantity in the duplex and that in the vasa deferentia was examined in the Asian comma butterfly, Polygonia c-aureum. In virgin males, the number of eupyrene sperm bundles in the duplex increased linearly with age, whereas that in the vasa deferentia was consistently small. However, numerous sperm were found in the vasa deferentia of males immediately after mating. The number of eupyrene sperm bundles in the vasa deferentia after mating significantly increased with age and with increasing the time interval between matings. From these and other results, it was suggested that some sperm in the duplex were moved back to the vasa deferentia during mating, and that such sperm reflux provides a means to save sperm for multiple mating. PMID:12770378

Hiroyoshi, S; Mitsuhashi, J

1999-02-01

274

Alaria alata mesocercariae in wild boar (Sus scrofa, Linnaeus, 1758) in south regions of the Czech Republic.  

PubMed

From March 2012 to February 2013, 221 wild boar carcasses obtained from regular hunts in the Czech Republic were tested for Alaria alata mesocercariae using the Alaria-migration-technique. Most samples originated from South Moravia (173), and all 15 positive samples were found in this region, in particular in Tvrdonice (3/10) and Lanžhot (12/28), close to the site of the first description of this parasitic stage in wild boars in the territory of former ?SSR. These hunting grounds are located between the rivers March and Thaya, and rich in floodplains. Among the 38 carcasses tested in this area, higher carcass weights were associated with higher frequency of positive carcasses (P<0.05). Overall frequency of positive carcasses was 15/221 (6.8%). In positive samples (adipose and glandular tissue and muscle), the median number of mesocercariae was 14.3 per 100 g (range 3-69). PMID:23806746

Paulsen, P; Forejtek, P; Hutarova, Z; Vodnansky, M

2013-10-18

275

Distribution and biological features of the common pandora, Pagellus erythrinus (Linnaeus, 1758), in the southern Tyrrhenian Sea (Central Mediterranean)  

NASA Astrophysics Data System (ADS)

A synthetic analysis of the distribution, abundance and some biological traits of the common pandora ( Pagellus erythrinus) was performed. Data were gathered in 15 experimental bottom trawl surveys carried out off the southern Tyrrhenian Sea from 1994 to 2008. A total of 2,166 P. erythrinus were found in the investigated area, with a preference for the upper continental shelf (10-100 m). The highest persistence was recorded in the trawl-banned areas. The sex ratio Sr = F/( F + M) ranged between 0.60 and 0.96 (overall 0.78). The size at which 50 % of the individuals were mature was 157 and 170 mm total length for females and males, respectively. The length-weight relationship for all individuals was described by the following parameters: a = 0.016 and b = 2.905. Growth was evaluated (sexes combined) by applying length-based methods; up to eight significant modal components were evidenced. The von Bertalanffy growth parameters for the whole population were estimated at L ? = 454 mm, K = 0.08 and t 0 = -2.57. The present results are in agreement with the information available for the other Mediterranean stocks suggesting common biological features.

Busalacchi, B.; Bottari, T.; Giordano, D.; Profeta, A.; Rinelli, P.

2014-12-01

276

Antioxidant and antibacterial activity of essential oil and extracts of bay laurel Laurus nobilis Linnaeus (Lauraceae) from Portugal  

Microsoft Academic Search

Laurus nobilis L. is an aromatic plant frequently used as a spice in Mediterranean cookery and as a traditional medicine for the treatment of several infectious diseases. The aim of this study was to characterise the antibacterial and antioxidant activities of bay laurel essential oil (EO), ethanolic extract (EE) and hot\\/cold aqueous extract (AE). The major components detected in bay

C. Ramos; B. Teixeira; I. Batista; O. Matos; C. Serrano; N. R. Neng; J. M. F. Nogueira; M. L. Nunes; A. Marques

2012-01-01

277

Antioxidant and antibacterial activity of essential oil and extracts of bay laurel Laurus nobilis Linnaeus (Lauraceae) from Portugal  

Microsoft Academic Search

Laurus nobilis L. is an aromatic plant frequently used as a spice in Mediterranean cookery and as a traditional medicine for the treatment of several infectious diseases. The aim of this study was to characterise the antibacterial and antioxidant activities of bay laurel essential oil (EO), ethanolic extract (EE) and hot\\/cold aqueous extract (AE). The major components detected in bay

C. Ramos; B. Teixeira; I. Batista; O. Matos; C. Serrano; N. R. Neng; J. M. F. Nogueira; M. L. Nunes; A. Marques

2011-01-01

278

Analysis of the expression of p53 during the morphogenesis of the gastroesophageal mucosa of Gallus gallus domesticus (Linnaeus, 1758).  

PubMed

Ontogenesis comprises a series of events including cell proliferation and apoptosis and resulting in the normal development of the embryo. Protein p53 has been described as being involved in the development of several animal species. The aim of this study was to analyze the expression of protein p53 during the morphogenesis of the gastroesophageal mucosa of Gallus gallus domesticus and to correlate it with the histogenesis of structures present in this tissue. We used 24 embryos (at 12-20 days of incubation) and the thymus of two chickens. Immunohistochemical analysis was performed with the ABC indirect method. The expression of p53 in the gastroesophageal mucosa increased during the formation of the organ, mainly at the stages during which tissue remodeling and cell differentiation began. In the esophagus at stages 42 and 45, we observed immunoreactive (IR) cells in the surface epithelium and in early esophageal glands. In the proventriculus at stages 39-45, IR cells were present in the epithelial mucosa and rarely in the proventricular glands. In the gizzard after stage 42, we found IR cells mainly in the medial and basal epithelial layers of the mucosa and especially within the intercellular spaces that appeared at this phase and formed the tubular gland ducts. Thus, protein p53 occurs at key stages of development: in the esophagus during the remodeling of esophageal glands, in the proventriculus during the differentiation of the epithelium of the mucosa and in the gizzard during the formation of tubular glands. PMID:24068480

Ventura, Adriana; do Nascimento, Aparecida Alves; dos Santos, Marcos Antônio José; Vieira-Lopes, Danielle Alcantara; Sales, Armando; Pinheiro, Nadja Lima

2014-01-01

279

Ecotype Differentiation in the Face of Gene Flow within the Diving Beetle Agabus bipustulatus (Linnaeus, 1767) in Northern Scandinavia  

PubMed Central

The repeated occurrence of habitat-specific polyphyletic evolved ecotypes throughout the ranges of widely distributed species implies that multiple, independent and parallel selection events have taken place. Ecological transitions across altitudinal gradients over short geographical distances are often associated with variation in habitat-related fitness, these patterns suggest the action of strong selective forces. Genetic markers will therefore contribute differently to differences between ecotypes in local hybrid zones. Here we have studied the adaptive divergence between ecotypes of the water beetle Agabus bipustulatus along several parallel altitudinal gradients in northern Scandinavia. This water beetle is well known for its remarkable morphological variation associated with mountain regions throughout the western Palaearctic. Two morphological ecotypes are recognised: a montane type with reduced flight muscles and a lowland type with fully developed muscles. Using a multilocus survey of allozyme variation and a morphological analysis with landmark-based morphometrics, across thirty-three populations and seven altitudinal gradients, we studied the local adaptive process of gene flow and selection in detail. Populations were sampled at three different elevations: below, at and above the tree line. The results indicate that the levels of divergence observed between ecotypes in morphology and allele frequencies at ?-Glycerophosphate dehydrogenase relative to those shown by neutral molecular markers reflects local diversifying selection in situ. Four main lines of evidence are shown here: (1) A repeated morphological pattern of differentiation is observed across all altitudinal transects, with high reclassification probabilities. (2) Allele and genotype frequencies at the ?-Gpdh locus are strongly correlated with altitude, in sharp contrast to the presumable neutral markers. (3) Genetic differentiation is two to three times higher among populations across the tree line than among populations at or below. (4) Genetic differentiation between ecotypes within independent mountain areas is reflected by different sets of allozymes. PMID:22348080

Drotz, Marcus K.; Brodin, Tomas; Saura, Anssi; Giles, Barbara E.

2012-01-01

280

An important natural genetic resource of Oreochromis niloticus (Linnaeus, 1758) threatened by aquaculture activities in Loboi drainage, Kenya.  

PubMed

The need to improve food security in Africa through culture of tilapias has led to transfer of different species from their natural ranges causing negative impacts on wild fish genetic resources. Loboi swamp in Kenya is fed by three hot springs: Lake Bogoria Hotel, Chelaba and Turtle Springs, hosting natural populations of Oreochromis niloticus. The present study aimed at better genetic characterization of these threatened populations. Partial mtDNA sequences of the D-loop region and variations at 16 microsatellite loci were assessed in the three hot spring populations and compared with three other natural populations of O. niloticus in the region. Results obtained indicated that the hot spring populations had mitochondrial and nuclear genetic variability similar to or higher than the large closely related populations. This may be attributed to the perennial nature of the hot springs, which do not depend on rainfall but rather receive permanent water supply from deep aquifers. The study also revealed that gene flow between the three different hot spring populations was sufficiently low thus allowing their differentiation. This differentiation was unexpected considering the very close proximity of the springs to each other. It is possible that the swamp creates a barrier to free movement of fish from one spring to the other thereby diminishing gene flow. Finally, the most surprising and worrying results were that the three hot spring populations are introgressed by mtDNA genes of O. leucostictus, while microsatellite analysis suggested that some nuclear genes may also have crossed the species barrier. It is very likely that the recent intensification of aquaculture activities in the Loboi drainage may be responsible for these introgressions. Taking into account the importance of these new genetic resources, protection and management actions of the Loboi swamp should be accorded top priority to prevent the loss of these spring populations. PMID:25222491

Ndiwa, Titus Chemandwa; Nyingi, Dorothy Wanja; Agnese, Jean-François

2014-01-01

281

Ultrastructure and Glycoconjugate Pattern of the Foot Epithelium of the Abalone Haliotis tuberculata (Linnaeus, 1758) (Gastropoda, Haliotidae)  

PubMed Central

The foot epithelium of the gastropod Haliotis tuberculata is studied by light and electron microscopy in order to contribute to the understanding of the anatomy and functional morphology of the mollusks integument. Study of the external surface by scanning electron microscopy reveals that the side foot epithelium is characterized by a microvillus border with a very scant presence of small ciliary tufts, but the sole foot epithelium bears a dense field of long cilia. Ultrastructural examination by transmission electron microscopy of the side epithelial cells shows deeply pigmented cells with high electron-dense granular content which are not observed in the epithelial sole cells. Along the pedal epithelium, seven types of secretory cells are present; furthermore, two types of subepithelial glands are located just in the sole foot. The presence and composition of glycoconjugates in the secretory cells and subepithelial glands are analyzed by conventional and lectin histochemistry. Subepithelial glands contain mainly N-glycoproteins rich in fucose and mannose whereas secretory cells present mostly acidic sulphated glycoconjugates such as glycosaminoglycans and mucins, which are rich in galactose, N-acetyl-galactosamine, and N-acetyl-glucosamine. No sialic acid is present in the foot epithelium. PMID:22645482

Bravo Portela, I.; Martinez-Zorzano, V. S.; Molist- Perez, I.; Molist Garcia, P.

2012-01-01

282

Acclimation rate and resistance to lethal temperatures of 20-35 mm striped mullet, Mugil cephalus Linnaeus, at various salinities  

E-print Network

that fingerlings of channel catfish, 1 t 1 g tat . e 1'ghtly * * ' ta t to h'gh t* t tl fty. tg tll t l. (lead) f a d ' f y g ~L ~l t1 t h p 't' ly lated 'd e ' ta o to pp* - 1*th 1- test temperatures. On passing from one temperature to another within... that fingerlings of channel catfish, 1 t 1 g tat . e 1'ghtly * * ' ta t to h'gh t* t tl fty. tg tll t l. (lead) f a d ' f y g ~L ~l t1 t h p 't' ly lated 'd e ' ta o to pp* - 1*th 1- test temperatures. On passing from one temperature to another within...

Pfeiffer, Gerald Patrick

2012-06-07

283

Length-based growth, maturity and natural mortality of the cockfish Callorhinchus callorhynchus (Linnaeus, 1758) off Coquimbo, Chile  

Microsoft Academic Search

The growth rate, reproductive aspects, and natural mortality of chimaeras and ratfish are poorly known. In this study, life-history\\u000a parameters for cockfish Callorhinchus callorhynchus (Holocephali—Callorhinchidae) are estimated, which is an important fish resource exploited in Chile. Specimens were sampled\\u000a from the artisanal fishery captures, from November 2006 to November 2007. The standard length (SL) of males fluctuated between\\u000a 20 and

Carolina Alarcón; Luis A. Cubillos; Enzo Acuña

284

Helminth communities of European eels Anguilla anguilla (Linnaeus, 1758) from the Vistula Lagoon and Puck Bay, Poland.  

PubMed

Within 2001-2002 a total of 621 eel Anguilla anguilla (L., 1758) (488 from the Vistula Lagoon and 133 from the Puck Bay) were examined. Fifteen parasite taxa were recovered: Pseudodactylogyrus anguillae (Yin et Sproston, 1948), Brachyphallus crenatus (Rudolphi, 1802), Deropristis inflata (Molin, 1859), Diplostomum spp., Bothriocephalus claviceps (Goeze, 1782), Proteocephalus macrocephalus (Creplin, 1825), Anguillicola crassus (Kuwahara, Niimi et Itagaki, 1974), Camallanus lacustris (Zoega, 1776), Cystidicola farionis Fischer, 1798, Hysterothylacium aduncum (Rudolphi, 1802), Raphidascaris acus (Bloch, 1779), Acanthocephalus anguillae (Müller, 1780), A. lucii (Müller, 1776), Echinorhynchus gadi Müller, 1776, and Pomphorhynchus laevis (Müller, 1776), representing Monogenea, Digenea, Cestoda, Nematoda, and Acanthocephala, respectively. Ten of these taxa occurred in the Vistula Lagoon, while fourteen were noted in the Puck Bay. P. anguillae, Diplostomum spp., C. lacustris, C. farionis and P. laevis were not found in the lagoon eels, while B. crenatus did not occur in the bay. Anguillicola crassus was the most frequently found parasite (Vistula Lagoon: prevalence 75%, mean intensity 6.9 specimens; Puck Bay: 74.4%, and 8.3 specimens, respectively). Pseudodactylogyrus anguillae was recorded for the first time in the Puck Bay. PMID:16838624

Bystydzie?iska, Zofia; Rolbiecki, Leszek; Rokicki, Jerzy

2005-01-01

285

Fine structure and chemical analysis of the metathoracic scent gland of Eurygaster maura (Linnaeus, 1758) (Heteroptera: Scutelleridae).  

PubMed

The morphology and ultrastructure of the metathoracic scent glands (MTG) of Eurygaster maura were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Also, extracts of the volatile fraction of the MTG secretion from males and females were analyzed by capillary gas chromatography-mass spectrometry (GC-MS). In SEM investigations, MTG are composed of a reservoir and a pair of lateral glands connected to the reservoir by a duct. MTG are open in between the meso- and the metacoxae. These areas, called evaporation areas, are composed of mushroom-like elements. In TEM investigations, the reservoir walls contained two types of cells. Generally, a reservoir is lined by a single layer of epithelial cells, type I cells, which have numerous organelles. Type II cells are found only in a certain area of the reservoir wall. These cells have large secretory ducts lined by a cuticular intima layer. The lateral glands are lined by secretory cells and a secretory duct found in their cytoplasm. Nuclei of secretory cells are closed to the basal region of the cells and circular-shaped. In GC-MS investigations, the MTG exhibited a typical scutellerid composition. In general, (E)-2-hexanal, (E)-2-hexenyl acetate, n-tridecane, n-hexanoic acid, octadecanoic acid, and n-dodecane compounds were present, while diisooctyl acetate and 14-Beta-H-Pregna were detected only in the male extracts of Eurygaster maura. PMID:18274257

Durak, Dilek; Kalender, Yusuf

2007-01-01

286

The Feeding Ecology of the Blue Swimming Crab, Portunus pelagicus (Linnaeus, 1758), at Kung Krabaen Bay, Chanthaburi Province, Thailand.  

PubMed

The natural diet of blue swimming crabs, Portunus pelagicus, was investigated from October 2008 to October 2009 using hand sampling and a crab gill net. The results showed that the major prey items in the stomach contents of P. pelagicus were teleost fish (29.61%), organic matter (20.69%), crustaceans (18.3%) and shelled molluscs (11.46%). Significant differences were found in diet composition between juvenile and mature crabs, between crabs inside and outside the bay and among seasons. In contrast, significant differences were not found between male and female crabs. PMID:25210585

Kunsook, Chutapa; Gajaseni, Nantana; Paphavasit, Nittharatana

2014-08-01

287

Agonistic interactions between the invasive green crab, Carcinus maenas (Linnaeus) and juvenile American lobster, Homarus americanus (Milne Edwards)  

Microsoft Academic Search

Invasive organisms have the potential for competition with native organisms. In the Southern Gulf of St. Lawrence, juvenile American lobsters have a potential spatial overlap with adult green crabs. Crustaceans use agonistic behaviour to settle disputes, with the larger organism often winning contests for limited resources such as food and shelter. Two experiments were carried out using adult green crabs

M. A. Rossong; P. J. Williams; M. Comeau; S. C. Mitchell; J. Apaloo

2006-01-01

288

Agonistic interactions between invasive green crabs, Carcinus maenas (Linnaeus), and sub-adult American lobsters, Homarus americanus (Milne Edwards)  

Microsoft Academic Search

The invasive green crab, Carcinus maenas, has recently expanded its range into the Southern Gulf of St. Lawrence, where there is potential for substantial niche overlap with juvenile American lobsters, Homarus americanus. We used two experiments to elicit, record and analyze the agonistic interactions of adult green crabs (carapace width of 63–75 mm) and sub-adult (carapace length of 55–70 mm)

P. J. Williams; T. A. Floyd; M. A. Rossong

2006-01-01

289

Melatonin Induced Changes in Specific Growth Rate, Gonadal Maturity, Lipid and Protein Production in Nile Tilapia Oreochromis niloticus (Linnaeus 1758)  

PubMed Central

We have investigated the effect of melatonin (MLT) on specific growth rate (SGR% day?1), condition factor (k), gonado-somatic-index (GSI), histological structures of gonads, serum as well as gonadal protein and lipid in Nile tilapia Oreochromis niloticus. MLT treatment in the dose of 25 ?g/L for three weeks reduced SGR% day?1 (0.9±0.04) as compared to control (1.23±0.026). The GSI value was significantly (p<0.05) reduced to 1.77±0.253 from control where it was 2.56±0.25. Serum protein level increased from 9.33±2.90 mg/ml (control) to 11.67±1.45 mg/ml after MLT treatment while there was depressed serum triglycerides (86.16±1.078 mg/dl) and cholesterol (126.66±0.88 mg/dl) as compared to control values where these were 123.0±1.23 mg/dl and 132.0±1.65 mg/dl respectively. Histological structure of ovary showed small eggs of early perinucleolus stage after MLT treatment while testicular structure of control and MLT treated fish was more or less similar. It is concluded that exogenous melatonin suppressed SGR% day?1, GSI, ovarian cellular activity, protein and lipid biosynthesis, in tilapia suggesting that melatonin is useful in manipulating the gonadal maturity in fishes. PMID:25049476

Singh, Ruchi; Singh, A. K.; Tripathi, Madhu

2012-01-01

290

How do plant defense compounds influence the oviposition behaviour of small cabbage white butterfly Pieris rapae (Linnaeus)?  

Microsoft Academic Search

Jasmonic acid (JA) is an elicitor for induced plant defense. Herbivore attack causes an increase in endogenous JA in a plant, but exogenous JA treatment induces a similar set of compounds as an attack by an insect herbivore. In some plants, volatiles are induced after plant injury by herbivores and these volatiles repel the future herbivores. But, do volatiles also

Vu Quoc Ngu; Michel Zevenbergen; Maaike Bruinsma; Joop van Loon

2008-01-01

291

The essential oil of Brazilian pepper, Schinus terebinthifolia Raddi in larval control of Stegomyia aegypti (Linnaeus, 1762)  

Microsoft Academic Search

BACKGROUND: The ability of mosquitoes of the genus Aedes and its allies, such as Stegomyia, to transmit diseases such as dengue and yellow fever, makes them important in public health. This study aims to evaluate the use of the essential oil of Brazilian pepper in biological control of by assessing and quantifying the larvicidal effect against S. aegypti, the only

Ary G Silva; Drielle L Almeida; Silas N Ronchi; Amarildo C Bento; Rodrigo Scherer; Alessandro C Ramos; Zilma MA Cruz

2010-01-01

292

Females do it better. Individual recognition experiments reveal sexual dimorphism in Lemur catta (Linnaeus 1758) olfactory motivation and territorial defence.  

PubMed

In this paper, we aim at demonstrating individual recognition of female genital marking in Lemur catta. By gas chromatography and behavioural trials we verified the occurrence of the three components of recognition systems. We showed that each female has a unique chemical signature (expression component), and males and females perceive female individuality (perception component). To verify the presence of the action component (the last component of recognition systems), we designed a bioassay based on territorial competition to verify the functional response to female odours. Only females identified other females on the basis of their scents. The lack of a territorial functional response by males to female secretions may not indicate a male inability to identify females by their scents. In fact, sexual dimorphism in motivation and territorial defence may explain the response by males in the functional experiment. Actually, game theory predicts that males defend their own territories more vigorously against males compared with females. Therefore, the result of individual recognition bioassays of female odours may open interesting scenarios in the evaluation of the territorial defence investment across the different sex combinations. PMID:17644684

Palagi, Elisabetta; Dapporto, Leonardo

2007-08-01

293

Multiple paternity assessed using microsatellite markers, in green turtles Chelonia mydas (Linnaeus, 1758) of Ascension Island, South Atlantic  

Microsoft Academic Search

Paternity was determined for three clutches and up to 20 offspring per clutch in the green turtle (Chelonia mydas) from Ascension Island, South Atlantic, using microsatellite markers. All three clutches were sired by at least two different males. The results were compared with those of previous studies of multiple paternity in turtles. No significant difference among studies was observed in

J. S. Ireland; A. C. Broderick; F. Glen; B. J. Godley; G. C. Hays; P. L. M. Lee; D. O. F. Skibinski

2003-01-01

294

Respiratory distress and behavioral changes induced by sodium cyanide in the fresh water TELEOST, Cyprinus carpio (Linnaeus).  

PubMed

An acute toxicity (LC50) test using a static renewal bioassay method was conducted to determine the toxicity of sodium cyanide in freshwater exotic carp, Cyprinus carpio exposed for 96 h to different concentrations of sodium cyanide. The acute toxicity value was found to be 1 mg/L; one third of the LC50 (0.33 mg/L) was selected as the sublethal concentration for subacute studies. Behavioral patterns were observed in lethal (1, 2, 3, and 4 d) and sublethal concentrations (1, 5, 10, and 15 d). Cyprinus carpio in toxic media exhibited irregular, erratic, and darting swimming movements, hyperexcitability, loss of equilibrium, and sinking to the bottom, which might be due to inhibition of cytochrome c oxidase activity and decreased blood pH. The combination of cytotoxic hypoxia with lactate acidosis depresses the central nervous system and myocardium, the most sensitive critical sites for anoxia, resulting in respiratory arrest and death. A decrease in oxygen consumption (-28.36 to -78.28%; -14.22 to -47.25%) was observed at both lethal and sublethal concentrations of sodium cyanide respectively. Fish at the sublethal concentration were found under stress, but that was not fatal. PMID:19601395

David, M; Ramesh, H; Deshpande, S P; Chebbi, S G; Krishnamurthy, G

2009-01-01

295

Nutritional Ecology of a Generalist Herbivore Vanessa cardui Linnaeus (Lepidoptera: Nymphalidae) on Variable Larval and Adult Diets  

E-print Network

Effects of adult-derived carbohydrates, amino acids and micronutrients on female reproduction in a fruit-Effects of larval starvation and adult diet-derived amino acids on reproduction in a fruit-Effects of adult-derived carbohydrates, amino acids and micronutrients on female reproduction in a fruit-

VanOverbeke, Dustin R.

2011-01-01

296

Occurrence of Theileria and Babesia species in water buffalo (Bubalus babalis, Linnaeus, 1758) in the Hubei province, South China.  

PubMed

The presence and prevalence of tick-borne haemoparasites in water buffalo from the Hubei province, south China was investigated using the reverse line blot (RLB) hybridization assay and phylogenetic analysis of the parasite 18S rRNA gene. Theileria buffeli (19.1%) was the most frequently found species in all of the locations, followed by Babesia orientalis (8.9%), Babesia bovis (1.0%) and Babesia bigemina (0.7%). Only 12 (3.9%) of the samples had mixed infections. Eleven samples with single infections were selected for further characterization using 18S rRNA gene sequence analysis. Phylogenetic analysis showed that the eight T. buffeli 18S rRNA gene sequences obtained grouped into four clusters, of which three grouped with the known T. buffeli types B and D. The remaining five grouped separately from the previously describe T. buffeli types, constituting new T. buffeli types. The two B. bigemina 18S rRNA gene sequences obtained grouped closely with B. bigemina Kunming; this serves as the first report of B. bigemina in the Hubei province. The B. orientalis Daye 18S rRNA gene sequence obtained grouped closely with the previously reported B. orientalis Wuhan strain and with Babesia sp. Kashi 1 and Kashi 2. PMID:22154255

He, Lan; Feng, Hui-Hui; Zhang, Wen-Jie; Zhang, Qing-Li; Fang, Rui; Wang, Li-Xia; Tu, Pan; Zhou, Yan-Qin; Zhao, Jun-Long; Oosthuizen, Marinda C

2012-05-25

297

Structure, attachment, replacement and growth of teeth in bluefish, Pomatomus saltatrix ( Linnaeus, 1766), a teleost with deeply socketed teeth  

Microsoft Academic Search

Tooth replacement poses many questions about development, pattern formation, tooth attachment mechanisms, functional morphology and the evolution of vertebrate dentitions. Although most vertebrate species have polyphyodont dentitions, detailed knowledge of tooth structure and replacement is poor for most groups, particularly actinopterygians. We examined the oral dentition of the bluefish, Pomatomus saltatrix, a pelagic and coastal marine predator, using a sample

William E. Bemis; Anne Giuliano; Betty McGuire

2005-01-01

298

Structure, attachment, replacement and growth of teeth in bluefish, Pomatomus saltatrix (Linnaeus, 1776), a teleost with deeply socketed teeth.  

PubMed

Tooth replacement poses many questions about development, pattern formation, tooth attachment mechanisms, functional morphology and the evolution of vertebrate dentitions. Although most vertebrate species have polyphyodont dentitions, detailed knowledge of tooth structure and replacement is poor for most groups, particularly actinopterygians. We examined the oral dentition of the bluefish, Pomatomus saltatrix, a pelagic and coastal marine predator, using a sample of 50 individuals. The oral teeth are located on the dentary and premaxillary bones, and we scored each tooth locus in the dentary and premaxillary bones using a four-part functional classification: absent (A), incoming (I), functional (F=fully ankylosed) or eroding (E). The homodont oral teeth of Pomatomus are sharp, deeply socketed and firmly ankylosed to the bone of attachment. Replacement is intraosseus and occurs in alternate tooth loci with long waves of replacement passing from rear to front. The much higher percentage of functional as opposed to eroding teeth suggests that replacement rates are low but that individual teeth are quickly lost once erosion begins. Tooth number increases ontogenetically, ranging from 15-31 dentary teeth and 15-39 premaxillary teeth in the sample studied. Teeth increase in size with every replacement cycle. Remodeling of the attachment bone occurs continuously to accommodate growth. New tooth germs originate from a discontinuous dental lamina and migrate from the lingual (dentary) or labial (premaxillary) epithelium through pores in the bone of attachment into the resorption spaces beneath the existing teeth. Pomatomus shares unique aspects of tooth replacement with barracudas and other scombroids and this supports the interpretation that Pomatomus is more closely related to scombroids than to carangoids. PMID:16351980

Bemis, William E; Giuliano, Anne; McGuire, Betty

2005-01-01

299

Thermal tolerance during early ontogeny in the common whelk Buccinum undatum (Linnaeus 1785): Bioenergetics, nurse egg partitioning and developmental success  

NASA Astrophysics Data System (ADS)

Temperature is arguably the primary factor affecting development in ectotherms and, as a result, may be the driving force behind setting species' geographic limits. The shallow-water gastropod Buccinum undatum is distributed widely throughout the North Atlantic, with an overall annual thermal range of below zero to above 22 °C. In UK waters this species is a winter spawner. Egg masses are laid and develop when sea temperatures are at their coolest (4 to 10 °C) indicating future climate warming may have the potential to cause range shifts in this species. In order to examine the potential impacts of ocean warming, we investigate the effects of temperature on the early ontogeny of B. undatum across a thermal range of 0 to 22 °C. Each egg mass consists of approximately 100 capsules, in which embryos undergo direct development. Successful development was observed at temperatures ranging from 6 to 18 °C. Rates of development increased with temperature, but the proportion of each egg mass developing successfully decreased at the same time. With increasing temperature, the mean early veliger weight increased, but the number of early veligers developing per capsule decreased, suggesting a negative impact on the number of crawl-away juveniles produced per capsule. Elemental analysis showed both carbon (C) and nitrogen (N) to increase with temperature in early veligers but not in hatching juveniles, indicating greater energy reserves are accumulated during early ontogeny to compensate for the higher energetic demands of development at higher temperature. The developmental plasticity observed in B. undatum suggests this species to be capable of adapting to temperatures above those it currently experiences in nature. B. undatum may possess a thermal resilience to ocean warming at its current upper temperature distribution limit. This thermal resilience, however, may come at the cost of a reduced offspring number.

Smith, Kathryn E.; Thatje, Sven; Hauton, Chris

2013-05-01

300

Untersuchungen zum Gesundheitsstatus von Kanadagänsen ( Branta canadensis , Linnaeus, 1758) in Nordrhein-Westfalen an Hand der Analyse von Eiern  

Microsoft Academic Search

Zusammenfassung 107 Eier der Kanadagans aus Gelegen im Bereich des Naherholungsgebietes „Saaler Mühle“ in Nordrhein-Westfalen wurden morphometrisch, mikrobiologisch und serologisch untersucht. Untersucht wurde auf Erreger oder gegen diese gerichtete Antikörper von (i) Zoonosen (Salmonella sp.,Campylobacter sp.,Chlamydia sp.), (ii) die Erreger oder deren Antikörper von Tierseuchen (Virus der Newcastle Disease, Influenza A-Virus der Hämagglutinin (HA-)-Subtypen H5 und H7), (iii) Erreger oder

Brigitte M. Bönner; Sabine Jäger; Ursula Reichel; Walburga Lutz; J. Wissing; W. Knickmeier; W. H. Gerlich; Ulrike C. Wend; Annette L. Bolte; E. F. Kaleta

2003-01-01

301

[Parasite fauna and features of the parasite community structure in the minnow Phoxinus phoxinus (Linnaeus) from Yenisei and Kacha rivers].  

PubMed

Phoxinus phoxinus is a species widely distributed throughout Palaearctic and is a good model for investigation of parasite communities. Species composition and structure of parasite communities in the minnow from the streams if different types, namely Yenisei river near Krasnoyarsk City and its left affluent Kacha River, were examined. Indices of Shannon, Simpson, and Berger-Parker were used to describe the component parasite communities. Twenty five parasite species of seven classes were revealed, and ectoparasite were found to be dominating among them. The host-specific parasite species Paratrichodina phoxini (Infusoria), Dactylogyrus borealis (Monogenea), Parahemiurus merus and Diplostomum phoxini (Digenea) constitute the peculiarity of the parasite fauna in minnow. Parasite community of minnow in the Kacha river is the most various one. It is caused by the following factors--favorable temperature conditions, composition of ichthyofauna, and a high density of fish population in the Kacha river. Metacercaria of Diplostomum phoxini, the specific parasites of minnow's brain, are dominating in both streams. PMID:20349627

German, Iu K; Pronin, N M

2010-01-01

302

Genetic divergence in the Atlantic-Mediterranean Montagu's blenny, Coryphoblennius galerita (Linnaeus 1758) revealed by molecular and morphological characters.  

PubMed

Coryphoblennius galerita is a small intertidal fish with a wide distribution and limited dispersal ability, occurring in the northeastern Atlantic and Mediterranean. In this study, we examined Atlantic and Mediterranean populations of C. galerita to assess levels of genetic divergence across populations and to elucidate historical and contemporary factors underlying the distribution of the genetic variability. We analyse three mitochondrial and one nuclear marker and 18 morphological measurements. The combined dataset clearly supports the existence of two groups of C. galerita: one in the Mediterranean and another in the northeastern Atlantic. The latter group is subdivided in two subgroups: Azores and the remaining northeastern Atlantic locations. Divergence between the Atlantic and the Mediterranean can be the result of historical isolation between the populations of the two basins during the Pleistocene glaciations. Present-day barriers such as the Gibraltar Strait or the 'Almeria-Oran jet' are also suggested as responsible for this isolation. Our results show no signs of local extinctions during the Pleistocene glaciations, namely at the Azores, and contrast with the biogeographical pattern that has been observed for Atlantic-Mediterranean warm-water species, in which two groups of populations exist, one including the Mediterranean and the Atlantic coast of western Europe, and another encompassing the western tropical coast of Africa and the Atlantic islands of the Azores, Madeira and Canaries. Species like C. galerita that tolerate cooler waters, may have persisted during the Pleistocene glaciations in moderately affected locations, thus being able to accumulate genetic differences in the more isolated locations such as the Azores and the Mediterranean. This study is one of the first to combine morphological and molecular markers (mitochondrial and nuclear) with variable rates of molecular evolution to the study of the relationships of the Atlantic and Mediterranean populations of a cool-water species. PMID:17845433

Domingues, Vera S; Faria, Cláudia; Stefanni, Sergio; Santos, Ricardo S; Brito, Alberto; Almada, Vitor C

2007-09-01

303

Effects of seven antifouling compounds on photosynthesis and inorganic carbon use in sugar kelp Saccharina latissima (Linnaeus).  

PubMed

Macroalgae depend on carbon-concentrating mechanisms (CCMs) to maintain a high photosynthetic activity under conditions of low carbon dioxide (CO(2)) availability. Because such conditions are prevalent in marine environments, CCMs are important for upholding the macroalgal primary productivity in coastal zones. This study evaluated the effects of seven antifouling compounds-chlorothalonil, DCOIT, dichlofluanid, diuron, irgarol, tolylfluanid, and zinc pyrithione (ZnTP)-on the photosynthesis and CCM of sugar kelp (Saccharina latissima (L.)). Concentration-response curves of these toxicants were established using inhibition of carbon incorporation, whereas their effects over time and their inhibition of the CCM were studied using inhibition of O(2) evolution. We demonstrate that exposure to all compounds except ZnTP (< 1000 nM) resulted in toxicity to photosynthesis of S. latissima. However, carbon incorporation and O(2) evolution differed in their ability to detect toxicity from some of the compounds. Diuron, irgarol, DCOIT, tolylfluanid, and, to some extent, dichlofluanid inhibited carbon incorporation. Chlorothalonil did not inhibit carbon incorporation but clearly inhibited oxygen (O(2)) evolution. Photosynthesis showed only little recovery during the 2-h postexposure period. Inhibition of photosynthesis even increased after the end of exposure to chlorothalonil and tolylfluanid. Through changes in pH of the medium, toxic effects on the CCM could be studied isolated from photosynthesis effects. The CCM of S. latissima was inhibited by chlorothalonil, DCOIT, dichlofluanid, and tolylfluanid. Such inhibition of the CCM, or the absence thereof, deepens the understanding the mechanism of action of the studied compounds. PMID:22743627

Johansson, Per; Eriksson, Karl Martin; Axelsson, Lennart; Blanck, Hans

2012-10-01

304

Levels of heavy metals in green-lipped mussel Perna veridis (Linnaeus) from Muar Estuary, Johore, Malaysia.  

PubMed

Muscle and feather in tissue of 40 juveniles and 40 adult green-lipped mussel Perna veridis (L.) collected from Muar Estuary, Johor were analyzed for copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn) concentration using a fast and sensitive Inductively Coupled Plasma Mass Spectrometer (ICP-MS). In this study, the average concentration of Cu was 8.96 microg g(-1) dry weights, Cd with 0.58 microg g(-1) dry weight, Pb averaging 2.28 microg g(-1) dry weights and Zn averaged to 86.73 microg g(-1) dry weight. The highest accumulation of metal studied was found in feather sample compared to the muscle. The positive relationship of Cu, Cd, Pb and Zn with P. virdis length suggesting that the accumulation of these metals were formed in the mussel. In all cases, metal levels found were lower than the guideline of international standards of reference and the examined bivalve were not associated with enhanced metal content in their tissues and were safe within the limits for human consumption. PMID:19137835

Kamaruzzaman, B Y; Ong, M C; Zaleha, K; Shahbudin, S

2008-09-15

305

Residual effects of TMOF-Bti formulations against 1st instar Aedes aegypti Linnaeus larvae outside laboratory  

PubMed Central

Objective To evaluate the effectiveness and residual effects of trypsin modulating oostatic factor-Bacillus thuringiensis israeliensis (TMOF-Bti) formulations against Aedes aegypti (Ae. aegypti) (L.) larvae at UKM Campus Kuala Lumpur. Methods Twenty first instar Ae. aegypti larvae were added in each bucket containing 4 L of water supplied with crushed dried leaf powder as their source of food. Combination of TMOF-Bti in rice husk formulation with the following weights viz 10, 25, 50 and 100 mg, respectively in duplicate was distributed in the buckets; while TMOF-Bti in wettable powder formulation each weighing viz 2, 5, 10 and 20 mg, respectively in duplicate was also placed in the buckets. The control buckets run in duplicate with 4 L of water and 20 first instar Ae. aegypti larvae. All buckets were covered with mosquito netting. Larval mortality was recorded after 24 hours and weekly for five weeks. A new batch of 20 1st instar larvae Ae. aegypti was introduced into each bucket weekly without additional TMOF-Bti rice husk formulation or wettable powder. The experiment was repeated for four times. Results The result of the study showed that all formulations were very effective on the first two weeks by giving 100% larval mortality for all concentrations applied. The TMOF (2%) + Bti (2%) had a good residual effect until the end of 3rd week, TMOF (4%) + Bti (4%) until 4th week, wettable powder TMOF (20%) + Bti (20%) until the third week. Conclusions From the results it can be concluded that the TMOF-Bti formulations can be utilized in dengue vector control. PMID:23569922

Saiful, AN; Lau, MS; Sulaiman, S; Hidayatulfathi, O

2012-01-01

306

Intestinal ciliated protozoa of the Asian elephant Elephas maximus Linnaeus, 1758 with the description of Triplumaria izmirae n. sp.  

PubMed

Species composition and distribution of intestinal ciliates excreted in the feces of three Asian elephants living in Sasal? National Park, Izmir, Turkey, were investigated. Seven ciliate genera consisting of 36 species were identified. This is the first report on intestinal ciliates in elephants living in Turkey; one new species, T. izmirae n. sp., was described. This new species has a special macronucleus shape, skeletal rod plates with two wings and posterior contractile vacuole lying beneath the dorsal left base of the tail flap. The buccal infraciliary bands of T. izmirae are similar to those of T. selenica and T. suwako known from elephants. Triplumaria ovina and Raabena bella occurred in highest percentages in two elephants, whereas Latteuria polyfaria was highest in the third one. Ciliate densities in the three fecal samples were 3.5, 1.5 and 5.0 × 10(4)/mL. PMID:24280461

Gürelli, Gözde; Ito, Akira

2014-02-01

307

Apparent protein and energy digestibility of common and alternative feed ingredients by Atlantic cod, Gadus morhua (Linnaeus, 1758)  

Microsoft Academic Search

Studies were conducted with Atlantic cod, Gadus morhua (L.), to determine the apparent digestibility coefficients (ADCs) of protein and energy and the digestible energy (DE) content in feed ingredients widely available in Canada. We also tested the assumption of “independency” used in digestibility studies. The feed ingredients included two fish meals (herring, anchovy), three crustacean by-product meals (whole krill, crab,

Sean M. Tibbetts; Joyce E. Milley; Santosh P. Lall

2006-01-01

308

Antimicrobial activity of volatile component and various extracts of Enteromorpha linza (Linnaeus) J. Agardh from the coast of Izmir, Turkey  

Microsoft Academic Search

The methanol, dichloromethane, hexane, chloroform and volatile components ofEnteromorpha linza were testedin vitro for their antimicrobial activity against five Gram-positive, four Gram-negative bacteria andCandida albicans ATCC 10239. GC-MS analysis of the volatile components ofE. linza resulted in the identification of 35 compounds which constituted 84.76% of the total compounds. The volatile components ofE. linza consisted of n-tetratriacontane (8.45%), 1-heptadecanamine (6.65%)

Atakan Sukatar; N. Ulku Karabay-Yava?soglu; Guven Ozdemir; Zerrin Horzum

2006-01-01

309

Parasites of native Cichlidae populations and invasive Oreochromis niloticus (Linnaeus, 1758) in tributary of Amazonas River (Brazil).  

PubMed

This study provides the first investigation on acquisition of parasites in invasive O. niloticus by parasite species of native Cichlidae from the Igarapé Fortaleza basin, Northern Brazil. There were examined 576 specimens of 16 species of native cichlids and invasive O. niloticus collected in the main channel and the floodplain area of this tributary of Amazon River. The invasive O. niloticus was poorly parasitized having only Ichthyophthirius multifiliis, Trichodina centrostrigeata, Paratrichodina africana, Trichodina nobilis (Protozoa) and Cichlidogyrus tilapiae (Monogenoidea), and this host has not acquired any parasite species common to the native ichthyofauna region. In contrast, species of native cichlids showed rich fauna of parasites with predominance of Monogenoidea species, larvae and adults of Nematoda, Digenea, Cestoidea and Acanthocephala, besides four species of Protozoa and four Crustacea. However, only T. nobilis was acquired by native fish, the Aequidens tetramerus, which is a new host for this exotic Trichodinidae. In O. niloticus, well established in the region, the small number of helminth species may be associated with its rusticity, good adaptation in the new environment and also the presence of native parasites with relative specificity, but without ability to complete its life cycle in this invasive host of this ecosystem. PMID:24728360

Bittencourt, Luana Silva; Pinheiro, Douglas Anadias; Cárdenas, Melissa Querido; Fernandes, Berenice Maria; Tavares-Dias, Marcos

2014-03-01

310

Brain anatomy of the marine isopod Saduria entomon Linnaeus, 1758 (Valvifera, Isopoda) with special emphasis on the olfactory pathway  

PubMed Central

Representatives of at least six crustacean taxa managed to establish a terrestrial life style during their evolutionary history and the Oniscidea (Isopoda) are currently held as the most successfully terrestrialized malacostracan crustaceans. The brain architecture of terrestrial isopods is fairly well understood and studies on this field suggest that the evolutionary transition from sea to land in isopods coincided with a considerable size reduction and functional loss of their first pair of antennae and associated brain areas. This finding suggests that terrestrial isopods may have no or poor abilities to detect volatile substances but that their chemosensory ecology is most likely restricted to contact chemoreception. In this study, we explored how the brain of a marine isopod and particularly its olfactory system compares to that of terrestrial relatives. Using histochemical and immunohistochemical labeling, brightfield and confocal laser-scan microscopy, we show that in the marine isopod Saduria entomon aesthetascs on the first pair of antennae provide input to a well defined deutocerebrum (DC). The deutocerebral chemosensory lobes (DCL) are divided into spherical neuropil compartments, the olfactory glomeruli (og). Secondary processing areas in the lateral protocerebrum (lPC) are supplied by a thin but distinct projection neuron tract (PNT) with a contralateral connection. Hence, contrary to terrestrial Isopoda, S. entomon has at least the neuronal substrate to perceive and process olfactory stimuli suggesting the originally marine isopod lineage had olfactory abilities comparable to that of other malacostracan crustaceans. PMID:24109435

Kenning, Matthes; Harzsch, Steffen

2013-01-01

311

Study of Toxoplasma infection in Brazilian wild mammals: serological evidence in Dasypus novemcinctus Linnaeus, 1758 and Euphractus sexcinctus Wagler, 1830.  

PubMed

Toxoplasmosis is a worldwide distributed zoonosis that affects man and most warm-blooded animals, with a great economic impact in animal and public health. Serum samples from nine 9-banded armadillos, three 6-banded armadillos, three coatimundis, two opossums and one nutria were submitted for anti-Toxoplasma gondii antibody detection by means of a modified direct agglutination method. Encephalic tissue of three 6-banded armadillos, one 9-banded armadillo, one coatimundi and one nutria were digested in acid pepsin solution and inoculated into Swiss mice for parasite isolation. Only one serum sample from a nine-banded armadillo and two from six-banded armadillos reacted producing titers equal to 256, 512 and 512, respectively. T. gondii was isolated in two 6-banded armadillos, one of which was not positive in the serological test. PMID:16188389

da Silva, Aristeu Vieira; de Moraes Gimenes Bosco, Sandra; Langoni, Helio; Bagagli, Eduardo

2006-01-15

312

Descriptive anatomic study of the great vessels of the heart in the capuchin monkey Cebus apella (Linnaeus, 1758).  

PubMed

The aim of this study was to describe the anatomy of the great vessels of the heart in capuchin monkey (Cebus apella) and to compare with those of other primates, including humans. The hearts were prepared through fixation in 10% formalin and subsequently dissected using standard techniques and instruments. The arterial and venous systems were perfused with colored latex solution via the femoral vessels. An ascending cylindrical branch with relatively great caliber was identified in the aorta artery, in addition to an aortic arch, from which three great arteries were originated, the brachiocephalic trunk, the left common carotid artery and the left subclavian artery. After a course of variable extension, the pulmonary trunk divided into right and left pulmonary arteries. The caudal vena cava was morphologically similar to that of humans, except for its association with the cardiac lobe of the right lung, whereas the cranial vena cava was formed by the two braquiocephalic veins and received the azygos vein close to right atrium. The pulmonary veins, in number of six, ended at the posterior face of the left atrium, differently from both humans and other primates. In conclusion, the morphology of the great vessels of the heart in Cebus apella was similar to that of humans and other primates, although some differences are evidenced with regards to topography and number of anatomic structures, particularly the relationship of the caudal vena cava with the cardiac lobe of the right lung and the presence of six pulmonary veins in Cebus apella. PMID:22642625

Rosa, L; Silva, Z; Pereira, M; Santos, L; Mitri, F; Carvalho-Barros, R; Silva, D

2012-12-01

313

Histological survey of symbionts and other conditions of pod razor clam Ensis siliqua (Linnaeus, 1758) in Galicia (NW Spain).  

PubMed

The aim of the present study was to carry out a survey of parasites and other conditions affecting pod razor clam populations, Ensis siliqua, in two beds from Galicia (NW Spain). In Galicia, the production of E. siliqua has increased in recent years due to the development of specific plans for its exploitation, however few and quite recent pathological studies have been carried out in this species. The results of this study showed the presence of different protozoa as the more prevalent group, especially Nematopsis sp. gregarines, unidentified branchial protozoa, renal coccidia and Trichodina sp. ciliates. Larval stages of trematodes and neoplastic disorders were also observed with lower prevalences. Furthermore, an ultrastructural analysis of two types of unidentified basophilic inclusions, both found in the digestive gland, revealed the presence of icosahedral viral particles and prokaryotic organisms, respectively. None of the parasites detected in E. siliqua from this study was notifiable to the World Organisation for Animal Health (OIE) and the majority of the symbionts and conditions observed in their tissues did not cause host damage. Nevertheless, parasites like bucephalid digenean sporocysts, viral inclusions, prokaryotic infections, disseminated neoplasm or germinoma detected in some samples could cause moderate or severe damage to the host depending on the intensity of infection. PMID:23026702

Ruiz, Maite; Darriba, Susana; Rodríguez, Rosana; López, Carmen

2013-01-01

314

Impact of Elevated Levels of Atmospheric CO 2 and Herbivory on Flavonoids of Soybean ( Glycine max Linnaeus)  

Microsoft Academic Search

Atmospheric levels of carbon dioxide (CO2) have been increasing steadily over the last century. Plants grown under elevated CO2 conditions experience physiological changes, particularly in phytochemical content, that can influence their suitability\\u000a as food for insects. Flavonoids are important plant defense compounds and antioxidants that can have a large effect on leaf\\u000a palatability and herbivore longevity. In this study, flavonoid

Bridget F. O’Neill; Arthur R. Zangerl; Orla Dermody; Damla D. Bilgin; Clare L. Casteel; Jorge A. Zavala; Evan H. DeLucia; May R. Berenbaum

2010-01-01

315

Relative growth and reproductive cycle of the date mussel Lithophaga lithophaga (Linnaeus, 1758) sampled from the Bizerte Bay (Northern Tunisia)  

NASA Astrophysics Data System (ADS)

Relative growth and the reproductive cycle of the date mussel Lithophaga lithophaga were studied from September 2002 to October 2003 in the Bizerte Bay (Northern Tunisia). Relationships between shell length and shell width, shell height as well as volume-related variables (shell dry weight, soft tissues dry weight and total wet weight) showed negative allometries in both sexes except for shell width in males (isometry) and shell height in both sexes (positive allometry). The sex ratio was unbalanced, within the length range of 6-48 mm, 49.43 % of the animals were males, 24.39 % females and 26.17 % sexually undifferentiated; within the length range of 49-92 mm, the respective values were 41.19, 52.7 and 6.1 %. Histological investigations as well as analyses of the condition index and the gonadosomatic index (CI and GSI) revealed the presence of a single reproductive cycle per year. Spawning occurred at the end of August and early September and was associated with a decrease in seawater temperature and salinity. A resting phase occurred in winter, coinciding with the lowest water temperatures. Histological examinations of the gonads of a total of 130 specimens revealed only two cases of hermaphroditism. The present study constitutes a useful baseline for a sustainable management of local wild stocks of L. lithophaga.

Kefi, Ferdaous Jaafar; Boubaker, Samir; Menif, Najoua Trigui El

2014-09-01

316

Dorado  

NASA Astrophysics Data System (ADS)

(the Goldfish, or Swordfish—sometimes shown as Xiphias; abbrev. Dor, gen. Doradus; area 179 sq. deg.) A southern constellation which lies between Pictor and Reticulum, and culminates at midnight in early December. It was first shown on Petrus Plancius' celestial globe of c. 1598, though it is usually attributed to the Dutch navigators Pieter Dirkszoon Keyser (also known as Petrus Theodorus) and F...

Murdin, P.

2000-11-01

317

Anim. Behav., 1996, 51, 10711075 Honeydew flicking by treehoppers provides cues to potential tending ants  

E-print Network

on the ground, the ants climb onto the host plant and start tending activity. Honeydew-soaked filter papers-soaked papers. Because predation and parasitism on G. xiphias can be severe at early stages, and tending ants protect the homopterans against predators and parasitoids, the capacity to attract ants early in life can

Oliveira, Paulo S.

318

Rapid Jumps and Bioluminescence Elicited by Controlled Hydrodynamic Stimuli in a Mesopelagic Copepod, Pleuromamma xiphius  

Microsoft Academic Search

Actively vertically migrating mesopelagic copepods are preyed upon by a wide variety of fishes and invertebrates. Their responses to predatory attacks in- clude vigorous escape jumps and discharge of biolumi- nescent material. Escape jumps and bioluminescent dis- charges in the calanoid copepod Pleuromamma xiphias were elicited by quantified hydrodynamic disturbances. Brief weak stimuli (peak water velocity 64 ? 21 pm

D. K. HARTLINE; E. J. BUSKEY; P. H. LENZ

1999-01-01

319

DEVELOPMENT OF THE VERTEBRAL COLUMN, FINS AND FIN SUPPORTS, BRANCHIOSTEGAL RAYS, AND SQUAMATION  

E-print Network

by Ovchinnikov (1970). Arata (1954) described the larvae and juveniles, and Yasuda et al. (1978) described. 1982. facilitate its phylogenetic placement. Although literature is abundant on larvae, juveniles, and adults ofthis monotypic species and genus(Palko et al. 1981), detailed osteological studies of Xiphias do

320

GEOL 104 Dinosaurs: A Natural History Smithsonian Assignment I: Osteology and Life on Land before the Dinosaurs  

E-print Network

]. Look for the case labeled "Flying Fish". Find the skeleton of the flying fish Danichthys. 2) The "wings" of the flying fish are actually pectoral fins. Compared to Xiphias, the fins are: [ of a totally different. The end of the osteology exhibit proper is a chamber with the skeletons of various fish (if you get

Holtz Jr., Thomas R.

321

JIMAR ANNUAL REPORT FOR FY 2012 P.I. NAME: (Mark A. Merrifield, Ph. D.), William A. Walsh  

E-print Network

. Catch statistics, length data, and standardized CPUE for blue shark Prionace glauca taken by longline gladius, blue marlin Makaira nigricans, and striped marlin Kajikia audax; SHARKWG: blue shark Prionace glauca and shortfin mako Isurus oxyrinchus). The web pages were prepared in the form of working papers

Hawai'i at Manoa, University of

322

Conepatus leuconotus (Carnivora: Mephitidae) JERRY W. DRAGOO AND STEVEN R. SHEFFIELD  

E-print Network

, not Viverra Linnaeus, 1758. Mustela: Daudin in Lace´pe`de, 1802:163. Not Mustela Linnaeus, 1758. Gulo: Humboldt, 1812:347. Not Gulo Pallas, 1780. Gulo: Illiger, 1815:109, 121. Part, not Gulo Pallas, 1780

Hayssen, Virginia

323

Federal Noxious Weed List (as of June 30, 2006) Aquatic/Wetland  

E-print Network

dentatasquamata Yuncker Cuscuta denticulata Engelmann 1 #12;Cuscuta epilinum Weihe Cuscuta epithymum (Linnaeus. Alectra spp. Cuscuta spp. (dodders), other than following species: Cuscuta americana Linnaeus Cuscuta applanata Engelmann Cuscuta approximata Babington Cuscuta attenuata Waterfall Cuscuta boldinghii Urban

Nowak, Robert S.

324

ACTIVITY AND FEEDING BEHAVIOR OF THE SUMMER FLOUNDER (PARALICHTHYS DENTATUS)  

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adult summer flounder, Pa'ralichthys dentatus (Linnaeus), held under controlled laboratory conditions, feeding, and general swim- ming patterns of adult summer flounder, Paral- ichthys dentat1iS (Linnaeus

325

TEXAS A&M UNIVERSITY LIBRARIES USING THE CSE FORMAT  

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as its initial citation. Ex: Modern scientific nomenclature really began with Linnaeus in botany1 scientific nomenclature really began with Linnaeus in botany13 , but other disciplines2, 16 were not many

326

Abstract--The Caranx hippos spe-cies complex comprises three extant  

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(Caranx hippos) (Linnaeus, 1766) from both the west- ern and eastern Atlantic oceans; Pacific crevalle nearly identical range. Recognized as "superb light species Caranx hippos (Linnaeus) (At- tackle species

327

Modeling and Prediction in Diabetes Marzia Cescon  

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the distance! Marzia 5 #12;Financial Support The author is member of the LCCC Linnaeus Center and the ELLIIT7 IST-216592 and the Swedish Research Council by the LCCC Linnaeus Center and by the ELLIIT Ex

328

BULLETIN OF MARINE SCIENCE. 87(3):687694. 2011 http://dx.doi.org/10.5343/bms.2010.1101  

E-print Network

, and Karina Ramírez ABSTRACT Atlantic bluefin tuna, Thunnus thynnus (Linnaeus, 1758), are highly migratory for Atlantic bluefin tuna, Thunnus thynnus (Linnaeus, 1758), has been recorded in subtropical waters

329

ACKNOWLEDGMENTS _ GENUS PENAEUS FABRICIUS _  

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to the western Atlantic species of PenaeIIS . - -- -- -- --- --- -- --- Penaeus setifems (Linnaeus) - _ Taxonomic III #12;IV PenaeUB BeU/eroB (Linnaeus)-Continued Distribution and morphological variations

330

Last updated 1/10/2012 Federal Noxious Weed List  

E-print Network

-reed Parasitic Latin Name Author(s) Common Name(s) Aeginetia spp. Linnaeus Varies by species Alectra spp. Thunb malabathricum Linnaeus Malabar melastome Mikania cordata (Burman f.) B. L. Robinson Mile-a-minute Mikania

Watson, Craig A.

331

Most people are familiar with the beautiful and often strikingly  

E-print Network

to describe in this profile; however, many books are dedicated to the topic. Taxonomy Goldfish, Carassius auratus (Linnaeus 1758), and common carp, Cyprinus carpio (Linnaeus 1758), are members of the family

Hill, Jeffrey E.

332

SOUTHEASTERN NATURALIST2005 4(3):435446 Abundance and Community Composition of Waterbirds  

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). Cattle Egret (Bubulcus ibis Linnaeus) were the most abundant wading bird species during the wet season (64 ± 22% of individuals); White Ibis (Eudocimus albus Linnaeus) were most common during the dry

Dugger, Bruce

333

75 FR 45675 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)  

Federal Register 2010, 2011, 2012, 2013

...Glacier (ASPA 131), Linnaeus Terrance (ASPA 138), and Botany Bay (ASPA 154) to review the sites' management plans and...Glacier (ASPA 131), Linnaeus Terrance (ASPA 138), and Botany Bay (ASPA 154) Dates: September 1, 2010 to August 31,...

2010-08-03

334

Moths: Lepidoptera Vtor O. Becker -Scott E. Miller  

E-print Network

to Argentina. Manduca sexta (Linnaeus 1763). Widespread in the New World. Manduca rustica (Fabricius 1775 Pseudosphinx tetrio (Linnaeus 1771). (See plate 37.) United States through the Antilles to Argentina. Erinnyis alope (Drury 1773). Widespread in the New World. Erinnyis ello (Linnaeus 1758). Neotropical. Erinnyis

Mathis, Wayne N.

335

Introduction Anthro-01.qxd 12/12/03 8:51 PM Page 1  

E-print Network

. ESSENTIALISM Anthropoidea was recognized as a natural group at the birth of modern classification. Linnaeus foliate (or spear-shaped) canines separated from the incisors by a diastema; and blunt molars (Linnaeus distinguishing it from other species and by notes on its location. As an essentialist, Linnaeus believed

336

Mitogenomic Phylogenetics of Fin Whales (Balaenoptera physalus spp.): Genetic Evidence for Revision of  

E-print Network

whales (Balaenoptera physalus): B. p. physalus Linnaeus, 1758 in the Northern Hemisphere, B. p. quoyi.archer@noaa.gov Introduction Fin whales (Balaenoptera physalus Linnaeus, 1758) are distributed across the temperate to subpolar. physalus Linnaeus, 1758 in the Northern Hemisphere, B. p. quoyi Fischer, 1829 in the Southern Hemisphere

337

eld Guide to the Flatfishes of the Family Bothidae in the Western North Atlantic  

E-print Network

. Paralichthys dentatus (Linnaeus, 1766) ·.·...·... Paralichthys squamilentus Jordan and Gilbert, 1882 Syacium gunteri Ginsburg, 1933 ·... Syacium papillosum (Linnaeus, 1758). Syacium micrurum Ranzani, 1840) ··· BMhus lunatus (Linnaeus, 1758) . Bothus maculiferus (Poey, 1860) .· Key to the species of the genus

338

Linnaeosicyos (Cucurbitaceae): a New Genus for Trichosanthes amara, the Caribbean Sister Species of all Sicyeae  

E-print Network

Trichosanthes has flowers with strikingly fringed petals, and Linnaeus therefore placed a species from, Linnaeus, Plumier. With about 100 accepted species, Trichosanthes L. is the largest genus of the family. amara L., a species from the Caribbean island of Hispaniola in the Greater Antilles. Linnaeus (1753

Renner, Susanne

339

Chasing Tyrannosaurus and Deinonychus  

E-print Network

to humans, or its attractiveness. Carl von Linné, better known by the Latin form of his name, Linnaeus, developed the basic set of rules of biological nomenclature used by scientists since the mid-1700s. Linnaeus. Linnaeus' sys- tem was universal. It could be applied to all or- ganisms--plants, animals, fungi, and even

Holtz Jr., Thomas R.

340

BULLETIN OF MARINE SCIENCE. 89(0):000000. 2013 http://dx.doi.org/10.5343/bms.2011.1134  

E-print Network

, and Richard Bell ABSTRACT Predation by clupeoid species (e.g., Atlantic herring, Clupea harengus Linnaeus, especially for Atlantic cod, Gadus morhua Linnaeus, 1758. Adult cod also prey on herring, creating a positive by sprat, Sprattus sprattus Linnaeus, 1758, and herring, Clupea harengus FastTrack publication #12;BULLETIN

Myers, Ransom A.

341

UNITED STATES DEPARTMENT OF THE INTERIOR, Stewart L. Udall, Secretary FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner  

E-print Network

. of south Atlantic coast ' o__________________ 192 Trachinotu8 carolin1t8 (Linnaeus)___ ___ __ __ __ _ ___ _ 192 Trachinotu8 Jalcatu8 (Linnaeus) ___ _ __ __ ___ __ __ _______ 196 Trachinot1l8 glaucUB (Bloch Three species of pompano, Trachinot1t8 carolinU8 (Linnaeus), T. falcatu8 (Lin- naeus), and T. glaucu8

342

Glis glis (Rodentia: Gliridae) BORIS KRYSTUFEK  

E-print Network

.krystufek@zrs.upr.si Abstract: Glis glis (Linnaeus, 1766) is a glirid commonly called the fat or edible dormouse:113. Type species Sciurus glis Linnaeus, 1766:87, by designation under the plenary powers species Sciurus glis Linnaeus, 1766, by original designation. Myorus Reichenbach, 1835:7. Incorrect

Hayssen, Virginia

343

MAMMALIAN SPECIES No. 636, pp. 16, 3 figs. Eira barbara. By Steven J. Presley  

E-print Network

. Smith, 1842:201 ( Mustela barbara Linnaeus, 1758). CONTEXT AND CONTENT. Order Carnivora, suborder Caniformia, family Mustelidae, subfamily Mustelinae. The genus Eira is monotypic. Eira barbara (Linnaeus, 1758) Tayra Mustela barbara Linnaeus, 1758:46. Type locality ``Brasilia,'' re- stricted by Lo

Willig, Michael

344

MAMMALIAN SPECIES No. 712, pp. 16, 3 figs. Lutra maculicollis. By Serge Larivie`re  

E-print Network

of Michael Somers. Lutra Bru¨nnich, 1771 Mustela Linnaeus, 1758:45. Type species Mustela lutra. Lutra Brisson, 1762:13. Type species Mustela lutra Linnaeus. Not valid (Ellerman and Morrison-Scott 1951). Lutra Bru¨nnich, 1771:34. Type species Mustela lutra Linnaeus. Lutris Dume´ril, 1806:12. Modification of Lutra. Lutrix

Hayssen, Virginia

345

CeMEB in progress Highlights in midterm from  

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CeMEB in progress Highlights in midterm from the Linnaeus Centre for Marine Evolutionary Biology Activities & Events 26 CeMEB facts CeMEB The Linnaeus Centre for Marine Evolutionary Biology Global scale - pected to increase our knowledge basis to help policy makers develop management strategies. The Linnaeus

Johannesson, Henrik

346

THE AMERICAN OYSTER CRASSOSTREA VIRGINICA GMELIN By PAUL S. GALTSOFF, Fishery Biolo,;,t  

E-print Network

below a depth of 40 feet. The name "Ostrea" was given by Linnaeus (1758) to a number of mollusks which within the shells or naked, that Linnaeus listed under a general name "Vermes" which includes worms, mollusks, echinoderms, and others. The translation of Linnaeus' diagnosis reads as follows: SheH bivalve

347

MAMMALIAN SPECIES No. 803, pp. 16, 3 figs. Caluromys lanatus. By N. C. Caceres and A. P. Carmignotto  

E-print Network

lanatus from Salto Caxias Dam, Parana´ State, Brazil. Caluromys J. A. Allen, 1900 Didelphis Linnaeus, 1758:54. Part. Didelphys Schreber, 1778:532. Part, unjustified emendation of Di- delphis Linnaeus, 1758. Sarigua, 1856:74. Type species Philander cayopol- lin Burmeister, 1856 ( Didelphis philander Linnaeus, 1758

Hayssen, Virginia

348

An Historical Review of Sebastes Taxonomy and Systematics Discovery: The Late 1700's  

E-print Network

with the early descriptions of Sebastes. The first scholarly reference to a rockfish was by Linnaeus (1761) who description of Perca marina, Linnaeus (1761) cited the common Norwegian name (uer or rödfisk) for the fish was "hardly believable"; nevertheless, the name Sebastes marinus (Linnaeus) was used until recently

349

A sampling unit for estimating gall densities of Paradiplosis tumifex (Diptera: Cecidomyiidae) in  

E-print Network

associated damage in balsam fir, Abies balsamea (Linnaeus) Miller, Christmas trees. Infestation was greater insecte au sapin baumier (Abies balsamea (Linnaeus) Miller), l'arbre de Noe¨l. Le taux d'infestation e throughout the range of balsam fir, Abies balsamea (Linnaeus) Miller, in North America. The Christmas tree

Heard, Stephen B.

350

A new species of western Atlantic lizardfish (Teleostei: Synodontidae: Synodus) and  

E-print Network

. bondi, S. foetens (Linnaeus, 1766), and S. intermedius (Agassiz, 1829) Benjamin W. Frable (contact- medius (Agassiz, 1829) (Sand Diver) and S. foetens (Linnaeus, 1766) (In- shore Lizardfish). A new species foetens (Linnaeus, 1766) (Inshore Lizardfish) are estimated to be at fully exploited levels as bycatch

351

UNITED STATES DEPARTMENT OF THE INTERIOR, Fred A. Seaton, Secretary FISH AND WILDLIFE SERVICE, Arnie J. Suomela, Commissioner  

E-print Network

Linnaeus IN KARLUK LAKE AND BARE LAKE KODIAK ISLAND, ALASKA BY JOHN GREENBANK AND PHILIP R. NELSON FISHERY: Greenbank, John. Life history of the threespine stickleback Ga.vtero8teu8 aC1.tl.eatua Linnaeus in Karluk OF THE THREESPINE STICKLEBACK Gasterosteus aculeatus Linnaeus IN' KARLUK LAKE AND BARE LAKE, KODIAK ISLAND, ALASKA

352

SYSTEMATICS AND ZOOGEOGRAPHY OF THE PORCUPINEFISHES (DIODON, DIODONTIDAE, TETRAODONTIFORMES), WITH  

E-print Network

species: D. hystrix Linnaeus and D. eydouxii Brissout de Bameville are closely related species, each counts; D. ho!ocanthus Linnaeus and D. liturosus Shaw form a second species pair, each of which has the time of Linnaeus. The most recent description of a valid "new" species was in 1846, but, unfortunately

353

Entomological Research 36 (2006) 196201 2006 The Authors  

E-print Network

The fig wax scale Ceroplastes rusci (Linnaeus) (Homoptera: Coccidae) in south-east Vietnam: Pest status scale Ceroplastes rusci (Linnaeus) is a serious pest of fruit trees in many countries. In the present scale Ceroplastes rusci (Linnaeus) (Homoptera: Coccidae) is a member of the soft scale subfamily Cero

Eastwood, Rod

354

ANIMAL BEHAVIOUR, 2003, 65, 10651068 doi:10.1006/anbe.2003.2143  

E-print Network

in three realms, which today would be called geology, botany and zoology. Carl Linnaeus and Georges Buffon were pivotal figures in the early stages of the discipline. Linnaeus devised a system for organizing, resulting in a 36-volume encyclopaedia. The immediate effect of work by Linnaeus and Buffon was to stimulate

Arnold, Stevan J.

355

1. INTRODUCTION: SOME COMMENTS ON THE ZOOLOGICAL TERM GENUS  

E-print Network

function. The func- tions which Linnaeus visualized for the components of the scientific name. 1953: 48). Even before Linnaeus there was a recognition of the cat- egories genus and species. So illustration. There is a cohesive pattern in lumping Lacerta (Linnaeus, 1758; comprising lizards, crocodiles

356

Tamandua tetradactyla (Pilosa: Myrmecophagidae) VIRGINIA HAYSSEN  

E-print Network

College, Northampton, MA 01063, USA; vhayssen@email.smith.edu Abstract: Tamandua tetradactyla (Linnaeus g y . o r g Tamandua Gray, 1825 Myrmecophaga Linnaeus, 1758:35. Part. Myrmecophagam Pallas, 1766 tamandua G. Cuvier, 1798 5 Tamandua tetradactyla (Linnaeus, 1758), by tautonomy. Tamanduas F. Cuvier, 1829

Hayssen, Virginia

357

UNITED STATES DEPARTMENT OF THE INTERIOR Harold L. Ickes, Secretary  

E-print Network

Anchoviella milchilli (Cuvier and Valenciennes). Anchovy 83 Conger conger (Linnaeus). Conger eel 83 (Linnaeus). Tonguefish 84 Syngnathus jloridae (Jordan and Gil- bert). Pipefish 84 Syrictes fuscus (Storer). Common pipefish 85 Hippocampus hudsonius DeKay. Sea- horse 85 Menidia menidia (Linnaeus). Silver- side 85

358

Impact of Elevated Levels of Atmospheric CO2 and Herbivory on Flavonoids of Soybean  

E-print Network

Linnaeus) Bridget F. O'Neill & Arthur R. Zangerl & Orla Dermody & Damla D. Bilgin & Clare L. Casteel Linnaeus) grown under ambient and elevated levels of CO2 and subjected to damage by herbivores in three feeding guilds: leaf skeletonizer (Popillia japonica Newman), leaf chewer (Vanessa cardui Linnaeus

DeLucia, Evan H.

359

MAMMALIAN SPECIES No. 713, pp. 110, 3 figs. Alopex lagopus. By Alexandra M. Audet, C. Brian Robbins, and Serge Larivie`re  

E-print Network

. Where sympatric, the red fox (V. vulpes) can be differenti- ated by its larger size ( 3 kg), white. Arctic fox in summer pelage. Photograph by Lyle R. Walton. Alopex Kaup, 1829 Canis Linnaeus, 1758). Alopex lagopus (Linnaeus, 1758) Arctic Fox Canis lagopus Linnaeus, 1758:40. Type locality ``alpibus

Hayssen, Virginia

360

Lemur catta (Primates: Lemuridae) DON E. WILSON AND ELIZABETH HANLON  

E-print Network

.elizabeth@gmail.com (EH) Abstract: Lemur catta Linnaeus, 1758, is a lemurid commonly called the ring-tailed lemur, Madagascar, lemurid, primate, ring-tailed lemur E 25 March 2010 American Society of Mammalogists Synonymies is monotypic. Lemur catta Linnaeus, 1758 Ring-tailed Lemur Lemur catta Linnaeus, 1758:30. Type locality

Hayssen, Virginia

361

216 (2010/3) Territoire, Paysage, Anthropisation, Perception, Conservation, Restauration  

E-print Network

'un agrosystème. Le cas de la Guifette noire Chlidonias niger (Linnaeus, 1758) dans le Marais poitevin au sein d'un agrosystème. Le cas de la Guifette noire Chlidonias niger (Linnaeus, 1758) dans le cas de la Guifette noire CHLIDONIAS NIGER (Linnaeus, 1758) dans le Marais poitevin Alain Thomas 11

Boyer, Edmond

362

Insecticide residues in cotton soils of Burkina Faso and effects of insecticides on fluctuating asymmetry in honey bees ( Apis mellifera Linnaeus)  

Microsoft Academic Search

Four insecticides (acetamiprid, cypermethrin, endosulfan and profenofos) are used quarterly in the cotton-growing areas of Burkina Faso, West Africa. These insecticides were investigated in soils collected from traditionally cultivated and new cotton areas. Also, the effects of insecticide exposure on the developmental instability of honey bees, Apis mellifera, were explored. In soil samples collected three months after insecticide treatments, endosulfan

Norbert Ondo Zue Abaga; Paul Alibert; Sylvie Dousset; Paul W. Savadogo; Moussa Savadogo; Michel Sedogo

2011-01-01

363

Seasonal and local variation of Cr, Ni and Co concentrations in Ulva rigida C. Agardh and Enteromorpha linza (Linnaeus) from Thermaikos Gulf, Greece.  

PubMed

Cobalt, nickel and chromium concentrations were determined in Enteromorpha linza and Ulva rigida in seawater and sediment after seasonal collection from Thermaikos Gulf, Greece. Industrial waste and sewage is poured into this Gulf. The relative abundance of metals in the seaweeds and seawater decreased in the order Ni > Cr > Co, whereas in the sediment the order was Cr > Ni > Co. The two seaweeds bioaccumulated similar metal concentrations. The seasonal variation of metals in the two algae was not significant, but seemed to depend on the growth dynamics, the age of the tissue, the metal concentrations in the environment and the abiotic factors (such as salinity and temperature). Only Cr concentrations in E. linza showed significant local variation which depended on the area into which the industrial and domestic wastes were discharged and on their transport by sea currents. Nickel and chromium concentrations in U. rigida and Cr concentrations in E. linza displayed significant positive correlation with their concentrations in the seawater. Concentrations of the three metals in the seaweeds and seawater of Thermaikos Gulf generally exceeded the 'background' levels. PMID:15091522

Haritonidis, S; Malea, P

1995-01-01

364

The Acanthaster Survey of Saipan, Marianas Islands, 1969. Structure and Ecology of the Saipan Reefs in Relation to Predation by Acanthaster planci (Linnaeus).  

National Technical Information Service (NTIS)

While the principal factor controlling the depth of reef coral growth in the Caribbean appears to be the ambient light intensity, in the Indo-Pacific it may well be the level of Acanthaster predation below the wave base. Such a biological control of reef ...

T. F. Goreau, I. Peter, E. A. Graham, J. C. Lang, P. D. Goreau

1969-01-01

365

Anti-inflammatory and anti-angiogenic effects of flavonoids isolated from Lycium barbarum Linnaeus on human umbilical vein endothelial cells.  

PubMed

Anti-inflammatory and anti-angiogenic effects of flavonoids isolated from Lycium barbarum fruits, a traditional Chinese medicine, on human umbilical vein endothelial cells (HUVECs) were investigated. Initially, flavonoids were extracted with 80% ethanol and separated using a Cosmosil 140 C18-OPN column, with the acidic fraction eluted with deionized water being composed of chlorogenic acid, caffeoyl quinic acid, caffeic acid and p-coumaric acid and the neutral fraction eluted with methanol composed of quercetin-diglycoside, rutin and kaempferol-O-rutinoside. Flavonoid extract was effective in inhibiting expression of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule (VCAM-1) induced by TNF-? in HUVECs. The RT-PCR analysis indicated that ICAM-1 mRNA induced by TNF-? was inhibited by flavonoid extract. The flavonoid extract attenuated TNF-?-induced I?B phosphorylation as well as NF-?B, p65 and p50 translocation from cytosol to nucleus, through inhibition on TNF-?- and H(2)O(2)-induced intracellular reactive oxygen species (ROS) production. For the anti-angiogenic study, the flavonoid extract inhibited vascular endothelial growth factor (VEGF)-induced cell proliferation and migration in HUVECs, as well as angiogenesis. However, the flavonoid extract did not inhibit VEGF signaling. Surprisingly, HUVECs adhesion to the extracellular matrix was compromised and adhesion-induced signaling was retarded by the flavonoid extract. PMID:22751795

Wu, Wen-Bin; Hung, Dian-Kun; Chang, Fung-Wei; Ong, Eng-Thaim; Chen, Bing-Huei

2012-10-01

366

[Freshwater Pearl mussels of the genus Margaritifera (Mollusca: Bivalvia) described as M. elongata (Lamarck, 1819) and M. borealis (Westerlund, 1871) should be classified with M. margaritifera (Linnaeus, 1758)].  

PubMed

The shells of Pearl mussels from the basins of the Solza, Keret', and Umba rivers flowing into the White Sea have been measured to determine the ratio of shell convexity to its maximum height. This ratio is the main character that, according to Bogatov et al. (2003), allows one to distinguish between three species of the genus Margaritifera: M. margaritifera, M. elongata, and M. borealis. It has been found that the above ratio gradually increases as the shell grows. Therefore, this character is unsuitable for species diagnosis, the more so that no hiatus in it between the three forms of pearl mussels has been revealed in any of the samples studied. On this basis, it may be concluded that Northern Europe, including Russia, is inhabited by only one species of pearl mussels, M. margaritifera. PMID:18491570

Sergeeva, I S; Bolotov, I N; Bespalaia, Iu V; Makhrov, A A; Bukhanova, A L; Artamonova, V S

2008-01-01

367

Insecticide residues in cotton soils of Burkina Faso and effects of insecticides on fluctuating asymmetry in honey bees (Apis mellifera Linnaeus).  

PubMed

Four insecticides (acetamiprid, cypermethrin, endosulfan and profenofos) are used quarterly in the cotton-growing areas of Burkina Faso, West Africa. These insecticides were investigated in soils collected from traditionally cultivated and new cotton areas. Also, the effects of insecticide exposure on the developmental instability of honey bees, Apis mellifera, were explored. In soil samples collected three months after insecticide treatments, endosulfan and profenofos concentrations varied in the range of 10-30 ?g kg(-1) in the traditionally cultivated zones and 10-80 ?g kg(-1) in the new cotton zones, indicating a pollution of agricultural lands. However, only profenofos concentrations were significantly higher in the new cotton zone than the traditionally cultivated zones. In addition, the index of fluctuating asymmetry, FA1, in the length of second tarsus (L(HW)) was increased for bees when exposed to pesticide treated cotton fields for 82d, and their FA levels were significantly higher than those in the control colony in an orchard. The other studied traits of bees exposed to insecticides were not significantly different from controls. Our results indicate that FA may be considered as a biomarker reflecting the stress induced by insecticide treatments. However, the relationship between FA and stressors needs further investigations. PMID:21190716

Ondo Zue Abaga, Norbert; Alibert, Paul; Dousset, Sylvie; Savadogo, Paul W; Savadogo, Moussa; Sedogo, Michel

2011-04-01

368

Seasonal and local variation of Cr, Ni and Co concentrations in Ulva rigida C. Agardh and Enteromorpha linza (Linnaeus) from Thermaikos Gulf, Greece  

Microsoft Academic Search

Cobalt, nickel and chromium concentrations were determined in Enteromorpha linza and Ulva rigida in seawater and sediment after seasonal collection from Thermaikos Gulf, Greece. Industrial waste and sewage is poured into this Gulf. The relative abundance of metals in the seaweeds and seawater decreased in the order Ni > Cr > Co, whereas in the sediment the order was Cr

S. Haritonidis; P. Malea

1995-01-01

369

The development and demise of a Medieval forest-meadow system at Linnaeus' birthplace in southern Sweden: implications for conservation and forest history  

Microsoft Academic Search

The rapid industrialisation of agriculture and forestry during the last century has contributed to a transformation of the forested landscape in southern Sweden. Palaeoecological investigation revealed how the Medieval forest-meadow system was created about 900 years ago from a deciduous forest type that had been rather stable for the previous 3000 years. The study site was a forest hollow close

Matts Lindbladh; Richard Bradshaw

1995-01-01

370

Biochemical compounds' dynamics during larval development of the carpet-shell clam Ruditapes decussatus (Linnaeus, 1758): effects of mono-specific diets and starvation  

NASA Astrophysics Data System (ADS)

Successful larval growth and development of bivalves depend on energy derived from internal (endotrophic phase) and external (exotrophic phase) sources. The present paper studies survival, growth and biochemical changes in the early developmental stages (from egg to pediveliger) of the clam Ruditapes decussatus in order to characterize the nutritional requirements and the transition from the endotrophic to the exotrophic phase. Three different feeding regimes were applied: starvation and two mono-specific microalgal diets ( Isochrysis aff galbana and Chaetoceros calcitrans). A comparison between fed and unfed larvae highlighted the importance of egg lipid reserves, especially neutral lipids, during a brief endotrophic phase of embryonic development (first 2 days after fertilization). Egg reserves, however, may energetically contribute to the maintenance of larvae beyond the embryonic development. In fed larvae, the endotrophic phase is followed by a mixotrophic phase extending to days 5-8 after fertilization and a subsequent exotrophic phase. Metamorphosis starts around day 20. The intense embryonic activities are supported by energy derived from lipids, mainly from neutral lipids, and the metamorphic activities are supported by energy derived essentially from proteins accumulated during the planktonic phase and depend on the nutritional value of diets. The diet of I. aff galbana proves to be more adequate to R. decussatus larval rearing. The results provide useful information for the successful production of R. decussatus aquaculture.

Matias, Domitília; Joaquim, Sandra; Ramos, Margarete; Sobral, Paula; Leitão, Alexandra

2011-09-01

371

The strength of biogenic sand reefs: Visco-elastic behaviour of cement secreted by the tube building polychaete Sabellaria alveolata, Linnaeus, 1767  

NASA Astrophysics Data System (ADS)

Mechanical properties of the biomineralised cement from tube-building marine worms are poorly known. Secreted from an organ connected to the polychaetes specialised glands, the cement glues sand grains and calcareous shell fragments of a given size and, on a larger scale, ensures the resistance of the reef to waves. In this study, three kinds of mechanical tests were performed with worm tubes to establish the nature of the cement behaviour. Results obtained show that cement behaves like a visco-elastic material. This property allows the tubes to dissipate the mechanical energy from the waves to which they are subject and to reduce the mechanical stress transmitted inside the tubes to the polychaetes. Comparison of "fresh" and "dry" cements highlights that the visco-elastic behaviour of the cement is maintained after five years. The viscosity of the cement is therefore not related to moisture but to its chemical composition. More generally, these results offer a better understanding of the role of cement on worm reefs strength and their persistence in the geological record.

Le Cam, Jean-Benoît; Fournier, Jérôme; Etienne, Samuel; Couden, Jérôme

2011-01-01

372

The effect of dietary exogenous digestive enzymes on ingestion, assimilation, growth and survival of gilthead seabream ( Sparus aurata , Sparidae, Linnaeus) larvae  

Microsoft Academic Search

The success of microdiets commonly used in the cultivation of marine fish larvae is limited to serving as partial replacements\\u000a for live food. This limited success is thought to be associated with a reduced digestive ability due to an incompletely developed\\u000a digestive system. The enhanced growth obtained from live food has been partially attributed to the digestive enzyme activity\\u000a of

S. Kolkovski; A. Tandler; G. Wm. Kissil; A. Gertler

1993-01-01

373

Total and methyl-mercury content in bivalves, Mytilus galloprovincialis Lamarck and Ostrea edulis Linnaeus: relationship of biochemical composition and body size  

SciTech Connect

Mussels and oysters are of interest to pollution ecologists because they are widely distributed, suspension feeding invertebrates and are likely to accumulate pollutants from their environment (Goldberg 1975). Many authors have estimated the relation between the concentration of metals in the flesh and various biotic and abiotic parameters. Body mass (estimated in dry weight) is evidently an important factor governing the uptake of metals by these organisms. The highest concentrations of certain metals were often found in the smallest individuals. The relation between metal content and body size can best be described using Boyden's model which is useful for quantifying any physiological activities in relation to the dry weight of the specimens. In the present paper the authors describe the investigation into the relationship between total and methyl-mercury content and body mass in mussels and oysters.

Najdek, M.; Sapunar, J.

1987-07-01

374

Effects of the passage in chicks on the development of Ascaris lumbricoides Linnaeus, 1758 (Syn. A. lumbricoides var. suum, A. suum, A. suis  

E-print Network

. . . ~, ~, , ~. . . . . . 46 gean growth of ~ larvae (in peroent) in rabbits infected with A. lumbriooides ova reoovered and inoubated after passage ~ the 1ntest1nal traot of ohioks ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4... . . . ~, ~, , ~. . . . . . 46 gean growth of ~ larvae (in peroent) in rabbits infected with A. lumbriooides ova reoovered and inoubated after passage ~ the 1ntest1nal traot of ohioks ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4...

Manuel, Mauro Fernando

2012-06-07

375

Integration of western king prawn ( Penaeus latisulcatus Kishinouye, 1896) and green seaweed ( Ulva lactuca Linnaeus, 1753) in a closed recirculating aquaculture system  

Microsoft Academic Search

Integrating recirculating aquaculture systems with seaweeds is one of the strategies that can minimise wastes and risk of disease outbreaks. This study investigated the effect of integrating green seaweed (Ulva lactuca) with western king prawns (Penaeus latisulcatus) at varying stocking densities on the water quality, nutrient conversion rates and nutrient budget under closed recirculating culture system. The experiment was conducted

Le Van Khoi; Ravi Fotedar

376

Biogeography of helminth parasitism in Lemmus Link (Arvicolinae), with the description of Paranoplocephala fellmani n. sp. (Cestoda: Anoplocephalidae) from the Norwegian lemming L. lemmus (Linnaeus).  

PubMed

We describe the gastrointestinal helminth fauna of true lemmings (Lemmus spp., Arvicolinae) based on published and original material throughout the Holarctic range of these hosts. According to the existing data, the helminth fauna of true lemmings consists of three widespread and/or locally common taxa: Hymenolepis horrida (sensu lato) (Hymenolepididae), Anoplocephaloides lemmi (Anoplocephalidae) and Heligmosomoides spp. (Heligmosomidae). Despite the taxonomic boundaries and ancient phylogenetic splits in the hosts, there are no major faunistic differences for parasites within western (Siberian) L. sibiricus and L. bungei, and eastern (North American) L. trimucronatus throughout their distribution range. In contrast, the Norwegian lemming L. lemmus, which is a Fennoscandian endemic and closely related to the western populations of L. sibiricus, has only a single host-specific helminth, the cestode Paranoplocephala fellmani n. sp. (Anoplocephalidae). We describe the new species and show that it differs consistently from related species by its long and slender cirrus-sac. However, there are also a number of other significant differences, e.g., P. fellmani n. sp. and Andrya primordialis in Tamiasciurus hudsonicus (Sciuridae) evidently have a unique (sub)type of uterine development among Andrya/Paranoplocephala spp. Because P. fellmani n. sp. was also found to occur in Alaska (host L. trimucronatus), this species seems to follow the same biogeographical pattern as the other specialist helminths of Lemmus. We suggest alternative explanations for the absence of three major helminth taxa in the Norwegian lemming in Fennoscandia. PMID:11389326

Haukisalmi, V; Henttonen, H

2001-05-01

377

Survival, growth and reproduction of non-indigenous Nile tilapia, Oreochromis niloticus (Linnaeus 1758). I. Physiological capabilities in various temperatures and salinities  

USGS Publications Warehouse

The physiological tolerances of non-native fishes is an integral component of assessing potential invasive risk. Salinity and temperature are environmental variables that limit the spread of many non-native fishes. We hypothesised that combinations of temperature and salinity will interact to affect survival, growth, and reproduction of Nile tilapia, Oreochromis niloticus, introduced into Mississippi, USA. Tilapia withstood acute transfer from fresh water up to a salinity of 20 and survived gradual transfer up to 60 at typical summertime (30°C) temperatures. However, cold temperature (14°C) reduced survival of fish in saline waters ?10 and increased the incidence of disease in freshwater controls. Although fish were able to equilibrate to saline waters in warm temperatures, reproductive parameters were reduced at salinities ?30. These integrated responses suggest that Nile tilapia can invade coastal areas beyond their point of introduction. However, successful invasion is subject to two caveats: (1) wintertime survival depends on finding thermal refugia, and (2) reproduction is hampered in regions where salinities are ?30. These data are vital to predicting the invasion of non-native fishes into coastal watersheds. This is particularly important given the predicted changes in coastal landscapes due to global climate change and sea-level rise.

Schofield, Pamela J.; Peterson, Mark S.; Lowe, Michael R.; Brown-Peterson, Nancy J.; Slack, William T.

2011-01-01

378

Publisher: Institute for Animal Husbandry, Belgrade-Zemun UDC 639.31 NEUROBEHAVIORAL RESPONSES OF THE FRESHWATER TELEOST, CYPRINUS CARPIO (LINNAEUS.) UNDER QUINALPHOS INTOXICATION  

E-print Network

Abstract: Effect of quinalphos on the freshwater fish, Cyprinus carpio to elucidate inhibitory effect of quinalphos on acetyl cholinesterase activity associated behavioral changes. Fishes were exposed to one fifth (0.15µg/l) and one tenth (0.75 µg/l) of the lethal concentration (7.5 µg/l) of quinalphos for a period of 1, 7 and 14 days, and were allowed to recover for 7 days. Maximum decrement in acetyl cholinesterase activity of the exposed fish was recorded in brain followed by muscle, gill and liver. Recovery tenures witnessed increment in acetyl cholinesterase activity but significantly differed in comparison with control group. Depression of acetyl cholinesterase activity suggests decreased cholinergic transmission and consequent accumulation of acetylcholine in the tissues leading to cessation of nerve impulses. This has lead to behavioral and morphological changes due to impaired neurophysiology of the fish.

S. G. Chebbi; M. David

379

The impact of CO2 on collection of Aedes aegypti (Linnaeus) and Culex quinquefasciatus Say by BG-Sentinel(r) traps in Manaus, Brazil  

PubMed Central

Carbon dioxide (CO2) is an important component for activating and attracting host-seeking mosquitoes. The BG-Sentinel(r) trap is a well-established monitoring tool for capturing Culicidae, but CO2 role for the trap effectiveness has not been evaluated in highly urbanised areas. The objective was to evaluate the effectiveness of BG-Sentinel traps baited with and without CO2 for capturing urban mosquitoes. Fifteen areas were selected within the city of Manaus, Brazil, where four BG-Sentinels were operated for 24 h, two of them with CO2 and two without CO2. Captured Aedes aegypti females were dissected for the determination of their parity status. A significantly higher proportion of traps (from 32-79%) were positive for female Ae. aegypti when using the BG-Sentinel with CO2 (?2 = 11.0271, p ? 0.001). Catches of female Culex spp were six times higher in CO2 traps (Mann-Whitney U test = 190.5; p = 0.001). Parity rates were similar for both traps. This study showed that CO2 has primarily an enhancing effect on the efficacy of BG-Sentinel for capturing Culex spp in Manaus. For Ae. aegypti, the positivity rate of the trap was increased, when CO2 was added. PMID:23579804

de Azara, Tatiana Mingote Ferreira; Degener, Carolin Marlen; Roque, Rosemary Aparecida; Ohly, Jorg Johannes; Geier, Martin; Eiras, Alvaro Eduardo

2013-01-01

380

Follow-up of the health conditions of an urban colony of free-roaming cats (Felis catus Linnaeus, 1758) in the city of Rio de Janeiro, Brazil.  

PubMed

Similar to other urban areas where food and shelter are abundant, the zoological garden of Rio de Janeiro has dealt for years with a colony of feral or semi-feral domestic cats. A survey was conducted during 2002-2004 as a follow-up to a previous study in 2001 of the cat colony to identify pathogens circulating among the population and to annually follow the status of the cats to analyze morbidity coefficients and associations among infections and infestations identified in the colony. During the 3 years of the present study, 75 cats were sampled at least once, including 44 that were caught and examined only once, 14 that were examined twice, and 17 that were examined three times. For each cat that was caught, records were kept regarding sex, age, general health, and the presence of ectoparasites. Each year, a blood sample was taken for hematologic testing, platelet count, hemoparasite detection, antibodies to Toxoplasma gondii, and retrovirus detection. Blood counts were within normal range for the majority of cats tested. Feline immunodeficiency virus, fleas, and lice were detected in all years; however, incidence rates for each of these varied significantly throughout the years. Prevalence of Cytauxzoon spp., Mycoplasma spp., T. gondii infections were variable among the 3 years, although differences were not significant. Prevalence of feline leukemia virus increased significantly over the 3 years. Mycoplasma spp. and flea infestations were significantly associated, but no other associations among the pathogens were detected. Over the 3 years, the rate of new cat introductions decreased, and the pathogens showed a tendency to disseminate throughout the colony; however, there was virtually no evidence of clinically detectable disease. Therefore, it seems that stabilizing the population by a judicious control program facilitated the distribution of the pathogens throughout the colony, while the general well-being of the cats was not seriously affected. PMID:17481822

Mendes-de-Almeida, Flavya; Labarthe, Norma; Guerrero, Jorge; Faria, Maria Carolina Ferreira; Branco, Aline Serricella; Pereira, Cássia Dias; Barreira, Jairo Dias; Pereira, Maria Julia Salim

2007-06-20

381

Sanitary conditions of a colony of urban feral cats (Felis catus Linnaeus, 1758) in a zoological garden of Rio de Janeiro, Brazil.  

PubMed

The colony of urban stray cats living in the Rio de Janeiro zoological garden was studied in order to develop a population and health control program. As many cats as possible were captured during two months (47 animals) and were classified according to gender, age, weight and coat markings. They were submitted to a general health evaluation, examined for the presence of ectoparasites and sent to a surgical neutering program. All animals had a blood sample drawn for CBC, platelet count, heartworm and retroviruses detection. Capillary blood smears were made for hemoparasites detection. Coat marking and colors were tabby (59.7%), followed by solid black (17%); torbie (10.6%); bicolor (10.6%) and harlequin (2.1%). The only ectoparasites found were fleas, which infested 28% of the animals. The hemoparasites found were Haemobartonella felis (38%) and piroplasmas that could not be differentiated between Cytauxzoon spp. and Babesia spp. (47%). No cat was found infected by Dirofilaria immitis or FeLV (Feline Leukemia Virus), although FIV (Feline Immunodeficiency Virus) antibodies could be detected (21%). There was no correlation between hemoparasites and FIV infections. The estimated total cat population (mark-recapture method) was 59; 68% female and 32% male, suggesting that a neutering program is in fact needed. PMID:15517031

Mendes-de-Almeida, Flavya; Faria, Maria Carolina Ferreira; Branco, Aline Serricella; Serrão, Maria Lucia; Souza, Aline Moreira; Almosny, Nádia; Charme, Márcia; Labarthe, Norma

2004-01-01

382

Topography and ultrastructure of the tegument of Aphallus tubarium (Rodolphi, 1819) Poche, 1926 (Digenea: Cryptogonimidae), intestinal parasite of the common Dentex dentex (Linnaeus 1758) from Valinco Gulf.  

PubMed

The tegument ultrastructure of the intestinal fluke Aphallus tubarium was studied for the first time with the use of scanning and transmission electron microscopy. New details on morphology were recorded. The ultrastructural study revealed that the tegument of A. tubarium had a syncytial organization with a distal cytoplasm lying over a basal matrix and cytons. The surface of the tegument is covered with pectinate spines arranged quincuncially. As anterior-posterior differences were observed, particular attention was given to spines. Spines decrease in size and density from the anterior part of body to posterior part. Two types of sensory structures were identified, uniciliated and dome-shaped. Type 1 sensory receptors were outgrowths bearing groups of papillae with shorter and rigid apical seta visible on the anterior part of body surface, encircling the worm. Type 2 sensory receptors was dome-shaped papillae devoid of cilia, found mainly around the oral sucker. Diagrams of spines and sensory receptors were made to help in understanding the nature of these structures. Surface morphology may prove to be useful in distinguishing Aphallus spp with other Cryptogonimidae. PMID:25236270

Antonelli, Laetitia; Quilichini, Yann; Foata, Joséphine; Marchand, Bernard

2014-10-01

383

Identification of novel Babesia and Theileria species in South African giraffe ( Giraffa camelopardalis, Linnaeus, 1758) and roan antelope ( Hippotragus equinus, Desmarest 1804)  

Microsoft Academic Search

Blood specimens were received from five cases in which young adult giraffe, from different geographic origins in South Africa, showed sudden onset of disease and subsequently died. Additional specimens from two translocated giraffe, as well as one specimen from a roan antelope, were also included in the study. Blood slides from some of these animals showed the presence of piroplasms.

Marinda C. Oosthuizen; Basil A. Allsopp; Milana Troskie; Nicola E. Collins; Barend L. Penzhorn

2009-01-01

384

Predatory impact of the green crab ( Carcinus maenas Linnaeus) on post-settlement winter flounder ( Pseudopleuronectes americanus Walbaum) as revealed by immunological dietary analysis  

Microsoft Academic Search

Predation on flatfish during the early juvenile stage is an important factor regulating year-class strength and recruitment. In this study, immunological dietary analysis was performed on green crabs (Carcinus maenas) collected from the Niantic River, Connecticut, in an effort to evaluate the predatory impact of this species on post-settlement winter flounder (Pseudopleuronectes americanus). Through the use of species-specific antiserum, winter

David L. Taylor

2005-01-01

385

Characterization of 13 microsatellite loci for the deep-sea coral, Lophelia pertusa (Linnaeus 1758), from the western North Atlantic Ocean and Gulf of Mexico  

USGS Publications Warehouse

A suite of 13 polymorphic tri- and tetranucleotide microsatellite loci were isolated from the ahermatypic deep-sea coral, Lophelia pertusa. Among 51 individuals collected from three disjunct oceanic regions, allelic diversity ranged from six to 38 alleles and averaged 9.1 alleles per locus. Observed heterozygosity ranged from 9.1 to 96.8% and averaged 62.3% in the Gulf of Mexico population. For some loci, amplification success varied among collections, suggesting regional variation in priming site sequences. Four loci showed departures from Hardy-Weinberg equilibrium in certain collections which may reflect nonrandom mating. ?? 2008 Blackwell Publishing Ltd.

Morrison, C.L.; Eackles, M.S.; Johnson, R.L.; King, T.L.

2008-01-01

386

A Stock Assessment of the Blue Swimming Crab Portunus pelagicus (Linnaeus, 1758) for Sustainable Management in Kung Krabaen Bay, Gulf of Thailand.  

PubMed

A stock assessment of blue swimming crabs, Portunus pelagicus was conducted with crab gill nets and collapsible crab traps at Kung Krabaen Bay, in the eastern Gulf of Thailand, from 2008 to 2009. Several key indicators show that P. pelagicus population is in crisis. Fishing mortality shows an increase to 4.14. The exploitation rate is 0.71, higher than the optimal value of 0.38. The size of the mature females has also decreased from 8.10±0.39 cm to 7.52±1.14 cm. The average fecundity is 0.572×10(6)±0.261×10(6) eggs per batch, and the sex ratio (male:female) is 1:0.92. Based on these results, a sustainable management program for P. pelagicus was proposed as follows: (i) closing the bay during the spawning season, (ii) restoration of the Enhalus acoroides seagrass beds, (iii) restocking crab larvae in the bay and (iv) educating and networking all stakeholders to develop a better understanding of the ecology of the crab to support sustainable fishery management in Kung Krabaen Bay. PMID:25210587

Kunsook, Chutapa; Gajaseni, Nantana; Paphavasit, Nittharatana

2014-08-01

387

Reconciling deep calibration and demographic history: bayesian inference of post glacial colonization patterns in Carcinus aestuarii (Nardo, 1847) and C. maenas (Linnaeus, 1758).  

PubMed

A precise inference of past demographic histories including dating of demographic events using bayesian methods can only be achieved with the use of appropriate molecular rates and evolutionary models. Using a set of 596 mitochondrial cytochrome c oxidase I (COI) sequences of two sister species of European green crabs of the genus Carcinus (C. maenas and C. aestuarii), our study shows how chronologies of past evolutionary events change significantly with the application of revised molecular rates that incorporate biogeographic events for calibration and appropriate demographic priors. A clear signal of demographic expansion was found for both species, dated between 10,000 and 20,000 years ago, which places the expansions events in a time frame following the Last Glacial Maximum (LGM). In the case of C. aestuarii, a population expansion was only inferred for the Adriatic-Ionian, suggestive of a colonization event following the flooding of the Adriatic Sea (18,000 years ago). For C. maenas, the demographic expansion inferred for the continental populations of West and North Europe might result from a northward recolonization from a southern refugium when the ice sheet retreated after the LGM. Collectively, our results highlight the importance of using adequate calibrations and demographic priors in order to avoid considerable overestimates of evolutionary time scales. PMID:22164307

Marino, Ilaria A M; Pujolar, Jose Martin; Zane, Lorenzo

2011-01-01

388

A second generation genetic map of the bumblebee Bombus terrestris (Linnaeus, 1758) reveals slow genome and chromosome evolution in the Apidae.  

E-print Network

Abstract Background The bumblebee Bombus terrestris is an ecologically and economically important pollinator and has become an important biological model system. To study fundamental evolutionary questions at the genomic level, a high resolution...

Stolle, Eckart; Wilfert, Lena; Schmid-Hempel, Regula; Schmid-Hempel, Paul; Kube, Michael; Reinhardt, Richard; Moritz, Robin F A

2011-01-19

389

Evaluation on larvicidal effects of essential oils of some local plants against Anopheles arabiensis Patton and Aedes aegypti Linnaeus (Diptera, Culicidae) in Ethiopia  

Microsoft Academic Search

The concern for environmental safety and increased development of resistance to chemical insecticides by major arthropod vectors is rekindling interest in the search for botanical products that may be used against major vectors. Essential oils of 11 local plants were evaluated for larvicidal activities against laboratory colonies of Anopheles arabiensis and Aedes aegypti early fourth instar larvae. Those oils which

Fekadu Massebo; Mekuria Tadesse; Tesfaye Bekele; Meshesha Balkew; Teshome Gebre-Michael

390

Comparative chromosomal studies on two minnow fish, Phoxinus phoxinus (Linnaeus, 1758) and Eupallasella perenurus (Pallas, 1814); an associated cytogenetic-taxonomic considerations.  

PubMed

The present work provides new data on the banding pattern of two cyprinid fish species Phoxinus phoxinus and Eupallasella perenurus from Poland. C-banding, silver-staining (Ag), and fluorescent staining with chromomycin A3 techniques were used to describe the karyotypes. Both of the species karyotypes of 2n = 50 were characterised by one pair of acrocentric chromosomes, the largest in the set, and by two pairs of NOR-bearing chromosomes. In the chromosome set of Ph. phoxinus Ag-stained NORs were located on telomeres of two metacentric and two submetacentric chromosomes, but in most metaphases only one of the two homologous was observed. The karyotype of E. perenurus was characterised by Ag-NOR regions at a telomeric position on the shorter arm of two submetacentric chromosome pairs. In most metaphases only three NOR-bearing chromosomes were observed. In both investigated species the location of the A3 positive signals corresponded with the location of Ag-stained NORs and these sites were associated with heterochromatin shown as C-bands. The results of cytogenetical studies on other related, mainly the North American phoxinins, species are compared and discussed. PMID:11841182

Boro?, A

2001-01-01

391

Comparative chromosomal studies on two minnow fish, Phoxinus phoxinus (Linnaeus, 1758) and Eupallasella perenurus (Pallas, 1814); an associated cytogenetic-taxonomic considerations  

Microsoft Academic Search

The present work provides new data on the banding pattern of two cyprinid fish species Phoxinus phoxinus and Eupallasella perenurus from Poland. C-banding, silver-staining (Ag), and fluorescent staining with chromomycin A3 techniques were used to describe the karyotypes. Both of the species karyotypes of 2n?=?50 were characterised by one pair of acrocentric chromosomes, the largest in the set, and by

A. Boro?

2001-01-01

392

Helminth communities of two species of piscivorous birds, Ardea alba (Linnaeus) and Nyctanassa violacea (Gmelin) (Ciconiiformes: Ardeidae), in two coastal lagoons from Guerrero state, Mexico.  

PubMed

The composition and species richness in helminth communities of two species of heron, Ardea alba and Nyctanassa violacea, in two coastal lagoons from Guerrero, Mexico were examined. Nineteen species of helminth (7,804 individuals) were identified in 43 adult birds: 15 digeneans, 1 acanthocephalan, 1 cestode, and 2 nematodes. Eight species co-occurred in herons of both species and lagoons. The prevalence values of seven species and the mean abundance of five species varied significantly between species of birds and between lagoons. The heterophyid, Ascocotyle (Phagicola) longa, was the helminth numerically dominant in the helminth community of A. alba in both lagoons, while the cestode, Parvitaenia cochlearii, dominated the community of N. violacea. At the component community level, species richness varied significantly: 10 species in A. alba from Coyuca to 16 in N. violacea (Tres Palos). All of the birds examined were infected with helminth parasites: three to seven species per host in A. alba from Coyuca, and two to eight species in A. alba and N. violacea from Tres Palos. The results indicate that even though species composition was similar between both species of heron, the structure of their communities was not the same. Differences in the feeding behavior of the birds (day/night habits), as well as local differences in the abundance of species of fish, and infection levels of helminths in each lagoon are suggested as being responsible for the variations registered in the structure of the helminth communities. PMID:22314783

Violante-González, Juan; Monks, Scott; Gil-Guerrero, Salvador; Rojas-Herrera, Agustín A; Flores-Rodríguez, Pedro

2012-07-01

393

STUDY ON TRACE ELEMENT DETERMINATION IN LIVER SAMPLES OF GREAT-WHITE-EGRET Ardea alba LINNAEUS, 1758 (ARDEIDAE, AVES) FOR ENVIRONMENTAL CONTAMINATION BIOMONITORING  

Microsoft Academic Search

Predatory birds such as herons have been used as bioindicators of pollution since they are at the top of their food webs. The tissues of these animals are analyzed for assessing environmental pollution caused by toxic elements. In the present study, adequate experimental conditions were established for determination of trace elements concentrations in the liver samples of Great-white-egret ( Ardea

Rita de Cássia; A. Silva; Mitiko Saiki

2009-01-01

394

Variação sazonal na sociabilidade de forrageamento das garças Ardea alba (Linnaeus, 1758) e Egretta thula (Molina, 1782) (Aves: Ciconiiformes) na planície alagável do alto rio Paraná, Brasil  

Microsoft Academic Search

Seasonal variation in the foraging sociability of Great White Egret (Ardea alba) and Snowy Egret (Egretta thula) (Aves: Ciconiiformes) in the upper Paraná river floodplain, Brazil. The seasonal variation of foraging sociability of Great White Egret (Ardea alba) and Snowy Egret (Egretta thula) on the lagoons of the upper Paraná river floodplain, Brazil, was analyzed. Quarterly samplings of birds were

Márcio Rodrigo

395

Food and feeding habits of pearly razorfish, Xyrichtys novacula (Linnaeus, 1758), in the southern Tyrrhenian Sea: variation by sex and size  

Microsoft Academic Search

We collected pearly razorfish, Xyrichtys novacula (Labridae), from a sandy bottom of Capo d’Orlando (Tyrrhenian Sea) to study their feeding habits. We caught fish by hand-lines and seine nets and identified, counted and weighed food items in their stomachs. We evaluated the importance of the different prey types by calculating the frequency of occurrence, abundance and mass. We used these

Luca Castriota; Maria Pia Scarabello; Maria Grazia Finoia; Mauro Sinopoli; Franco Andaloro

2005-01-01

396

Proteomic identification of Bacillus thuringiensis subsp. israelensis toxin Cry4Ba binding proteins in midgut membranes from Aedes (Stegomyia) aegypti Linnaeus (Diptera, Culicidae) larvae.  

PubMed

Novel Bacillus thuringiensis subsp. israelensis (Bti) Cry4Ba toxin-binding proteins have been identified in gut brush border membranes of the Aedes (Stegomyia) aegypti mosquito larvae by combining 2-dimensional gel electrophoresis (2DE) and ligand blotting followed by protein identification using mass spectrometry and database searching. Three alkaline phosphatase isoforms and aminopeptidase were identified. Other Cry4Ba binding proteins identified include the putative lipid raft proteins flotillin and prohibitin, V-ATPase B subunit and actin. These identified proteins might play important roles in mediating the toxicity of Cry4Ba due to their location in the gut brush border membrane. Cadherin-type protein was not identified, although previously, we identified a midgut cadherin AgCad1 as a putative Cry4Ba receptor in Anopheles gambiae mosquito larvae [Hua, G., Zhang, R., Abdullah, M.A., Adang, M.J., 2008. Anopheles gambiae cadherin AgCad1 binds the Cry4Ba toxin of Bacillus thuringiensis israelensis and a fragment of AgCad1 synergizes toxicity. Biochemistry 47, 5101-5110]. Other identified proteins in this study that might have lesser roles include mitochondrial proteins such as ATP synthase subunits, mitochondrial processing peptidase and porin; which are likely contaminants from mitochondria and are not brush border membrane components. Trypsin-like serine protease was also identified as a protein that binds Cry4Ba. Identification of these toxin-binding proteins will lead to a better understanding of the mode of action of this toxin in mosquito. PMID:19272330

Bayyareddy, Krishnareddy; Andacht, Tracy M; Abdullah, Mohd Amir; Adang, Michael J

2009-04-01

397

Description of the biology of Caspian vimba, Vimba vimba (Linnaeus, 1758), in Gorgan Bay-Miankaleh Wildlife Refuge (southeast Caspian Sea)  

NASA Astrophysics Data System (ADS)

We collected Vimba vimba throughout the spawning season (mid April to mid June, 2007) in Gorgan Bay (south-western Iran) and investigated its age, growth, and reproductive traits. The maximum age was 5+ years. Both sexes grew allometrically (positive for males: b=3.140 9 and negative for females: b=2.791 4). The von Bertalanffy growth functions were described by the formulae L t =32.565(1-e-0.184( t+0.530)) for males and L t =35.950(1-e-0.179( t+0.529)) for females. The overall sex ratio was balanced, but males were predominant in the smaller size classes and females in the larger size classes. Based on the gonadosomatic index (GSI) values, spawning appears to occur between late April and late May in the bay. The highest mean GSI was 6.44 for males in early May and 20.36 for females in late April. Absolute fecundity varies from the minimum of 5 436 eggs for age 3+ fish to the maximum of 36 141 eggs for age 5+ fish. Fecundity was also positively correlated with fish size (length and weight). Egg diameter ranged from 1.05 to 1.70 mm in the mean of 1.42 mm. There was no correlation between female size and ova diameter.

Patimar, Rahman; Safari, Sajjad

2010-11-01

398

Attractancy of diethyl ether extracts of Arachis hypogaea (Linnaeus) (Papilionaceae), Citrullus lanatus (Thunberg) (Cucurbitaceae) and Irvingia gabonensis var. excelsa (Baillon) (Irvingiaceae) to Oryzaephilus mercator (Fauvel) (Coleoptera: Silvanidae)  

Microsoft Academic Search

Volatiles of the diethyl ether extracts of I. gabonensis, C. lanatus and A. hypogaea attracted 1–7 and 28–42-day-old adult O. mercator when tested in a two-choice pitfall Petri dish bioassay. For both age groups, a significant difference was observed in response between fed and starved adults to the different extracts. Differences in starvation time did not affect responses of individuals

P. O. Dudu; S. N. Okiwelu; N. E. S. Lale

1998-01-01

399

Consumption and gastric evacuation in juvenile red drum Sciaenops ocellatus (Linnaeus): Estimation of prey type effects and validation of field-based  

E-print Network

. Several recent examples highlight the successful incorporation of predator­prey interactions in multispecies age-structured population models and their potential to inform management (A'mar et al., 2010 ecosystem processes. Direct mortality induced by predation can alter prey demographics and potentially limit

Scharf, Fred

400

Biochemical compounds’ dynamics during larval development of the carpet-shell clam Ruditapes decussatus (Linnaeus, 1758): effects of mono-specific diets and starvation  

Microsoft Academic Search

Successful larval growth and development of bivalves depend on energy derived from internal (endotrophic phase) and external\\u000a (exotrophic phase) sources. The present paper studies survival, growth and biochemical changes in the early developmental\\u000a stages (from egg to pediveliger) of the clam Ruditapes decussatus in order to characterize the nutritional requirements and the transition from the endotrophic to the exotrophic phase.

Domitília Matias; Sandra Joaquim; Margarete Ramos; Paula Sobral; Alexandra Leitão

2011-01-01

401

The key breeding sites by pupal survey for dengue mosquito vectors, Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse), in Guba, Cebu City, Philippines.  

PubMed

We conducted this study to assess how well a pupal survey of dengue mosquito vectors, Aedes aegypti and Aedes albopictus, is able to target the most productive breeding sites. The study was carried out monthly during the rainy season (8 months) in 2008 in Cuba, Cebu City, Philippines. The hypotheses tested were: 1) most pupae of Ae. aegypti or Ae. albopictus were produced in a few types of breeding sites and 2) the most productive types of breeding sites for each species were the most abundant. Approximately 2,500 pupae were collected from 554 breeding sites in 279 houses. Thirty-eight point four percent of ten types of breeding sites were positive for Ae. aegypti, and 11.9% of nine types of sites were positive for Ae. albopictus. Plastic drums (40.2%), metal drums (29.6%), and plastic containers (10.5%) were the key sites for Ae. aegypti pupae, whereas bamboo stumps (28.5%), plastic drums (21.1%), and rubber tires (19.1%) were the key sites for Ae. albopictus. The most productive breeding sites for Ae. aegypti were common but not the most common for Ae. albopictus. These results are relevant for dengue vector control programs. PMID:23413699

Edillo, Frances E; Roble, Noel D; Otero, Nenito D

2012-11-01

402

Identification of novel Babesia and Theileria species in South African giraffe (Giraffa camelopardalis, Linnaeus, 1758) and roan antelope (Hippotragus equinus, Desmarest 1804).  

PubMed

Blood specimens were received from five cases in which young adult giraffe, from different geographic origins in South Africa, showed sudden onset of disease and subsequently died. Additional specimens from two translocated giraffe, as well as one specimen from a roan antelope, were also included in the study. Blood slides from some of these animals showed the presence of piroplasms. DNA was extracted; the V4 hypervariable region of the 18S rRNA gene amplified and analyzed using the Reverse Line Blot (RLB) hybridization assay. PCR products failed to hybridize with any of the Babesia or Theileria species-specific probes, and only hybridized with the Babesia/Theileria genus-specific probe suggesting the presence of a novel species or variant of a species. Full-length 18S rDNA was amplified, cloned and the recombinants were sequenced. 18S rRNA gene sequence similarity analysis revealed the presence of novel piroplasm species in both healthy giraffe and a roan antelope and clinically sick or dead giraffe. Phylogenetic analysis grouped five of these organisms in the Babesia sensu stricto clade and three in the Theileria sensu stricto clade. Although parasites were observed in blood smears, there is no direct evidence that piroplasmosis caused the death of five giraffe, although it certainly seems to be likely. PMID:19410370

Oosthuizen, Marinda C; Allsopp, Basil A; Troskie, Milana; Collins, Nicola E; Penzhorn, Barend L

2009-07-01

403

Feeding and nutritional ecology of the sea urchins Echinometra lucunter (Linnaeus, 1758) and Arbacia punctulata (Lamarck, 1816) Echinodermata: Echinoidea): the importance of animal foods  

E-print Network

invertebrates and sorted according to division-Chlorophyta, Rhodophyta, and Phaeophyta (Table 1). The remaining holdfasts and turf algae were used for the mixed diet along with other invertebrates (mainly ainphipods, isopods, and tiny pelecypods... invertebrates and sorted according to division-Chlorophyta, Rhodophyta, and Phaeophyta (Table 1). The remaining holdfasts and turf algae were used for the mixed diet along with other invertebrates (mainly ainphipods, isopods, and tiny pelecypods...

Pestovic, Jennifer Beth

2012-06-07

404

Supplementation of microbial levan in the diet of Cyprinus carpio fry (Linnaeus, 1758) exposed to sublethal toxicity of fipronil: effect on growth and metabolic responses.  

PubMed

A 60-day feeding trial was conducted to study the effect of dietary microbial levan on growth performance and metabolic responses of Cyprinus carpio fry exposed to sublethal dose (1/10th LC??) of fipronil [(±)-5-amino-1-(2,6-dichloro-?,?,?-trifluoro-p-tolyl)-4-trifluoromethylsulfinylpyrazole-3-carbonitrile]. Two hundred and twenty five fry were randomly distributed in five treatments in triplicates. Four purified diets were prepared with graded levels of microbial levan. Five different treatment groups were levan control L?P? (basal feed + 0 % levan without exposure to pesticide); pesticide control L?P? (basal feed + 0 % levan with exposure to pesticide); L?.??P? (basal feed + 0.25 % levan with exposure to pesticide); L?.??P? (basal feed + 0.50 % levan with exposure to pesticide); and L?.??P? (basal feed + 0.75 % levan with exposure to pesticide). Weight gain% and specific growth rate were significantly higher (p < 0.05) in levan fed groups compared to their non-levan fed counterpart. Highest (p < 0.05) content of ascorbic acid in muscle, liver and brain tissues was observed with higher level of dietary levan. Glucose-6-phosphate dehydrogenase activity decreased with the increasing level of dietary levan in the liver and muscle. Aspartate aminotransferase activity exhibited a second order polynomial relationship with the dietary levan, both in liver (Y = -1.001x² + 5.366x + 5.812, r² = 0.887) and muscle (Y = -0.566x² + 2.833x + 6.506, r² = 0.858) while alanine aminotransferase activity showed third order polynomial relationship both in liver (Y = 1.195x³ - 12.30x² + 35.23x + 9.874, r² = 0.879) and muscle (Y = 0.527x³ - 8.429x² + 31.80x + 8.718, r² = 0.990). Highest (p < 0.05) superoxide dismutase activity in gill was observed in the group fed with 0.75 % levan supplemented diet. Overall results indicated that dietary microbial levan at 0.75 % in C. carpio fry ameliorated the negative effects of fipronil and augmented the growth. PMID:23666372

Gupta, S K; Pal, A K; Sahu, N P; Jha, A K; Akhtar, M S; Mandal, S C; Das, P; Prusty, A K

2013-12-01

405

Influence of the red fox ( Vulpes vulpes , Linnaeus 1758) on the distribution and number of breeding birds in an intensively used farmland  

Microsoft Academic Search

This study tested the hypothesis that small birds at their nest sites avoid areas around dens of the red fox ( Vulpes vulpes, Linneaus 1758) in an intensively used farmland. Birds were counted at 18 points (radius 100?m) located near dens, as well as at 18 control points that were located at least 600?m away from the nearest den. These

Piotr Tryjanowski; Bart?omiej Go?dyn; Adrian Surmacki

2002-01-01

406

Comparison of conservative DNA extraction methods for two Galliformes: grey partridge ( Perdix perdix italica, Hartert 1917) and red-legged partridge ( Alectoris rufa , Linnaeus 1758)  

Microsoft Academic Search

Grey partridge and Red-legged partridge are Galliformes needing special conservation strategies. Reintroduction may represent\\u000a conservation solutions solely with the support of an in-depth genetic and ecologic evaluation, particularly of grey partridge,\\u000a of which an Italian subspecies was described. Protocols for conservative DNA isolation are fundamental to study breeders and\\u000a wild samples. For these reasons, two DNA extraction protocols on different

L. Lucentini; L. Gigliarelli; M. E. Puletti; L. Volpi; F. Panara

2010-01-01

407

Physical mapping of 5S and 18S-5.8S-26S RNA gene families in polyploid series of Cenchrus ciliaris Linnaeus, 1771 (Poaceae)  

PubMed Central

Abstract The Buffelgrass (Cenchrus ciliaris L., Poaceae) is one of the most important pasturage grasses due to its high productivity and good forage qualities. This species possess a high adaptability to bioclimatic constraints of arid zones and may be used for the restoration of degraded arid ecosystems. Tunisian populations present three ploidy levels (4x, 5x and 6x) with a basic chromosome number x=9. This study reported for the first time the distribution of the ribosomal genes (rRNA) for pentaploid and hexaploid cytotypes of Cenchrus ciliaris. Molecular cytogenetic study using double fluorescence in situ hybridization has shown that the two rDNA families, 5S and 18S-5.8S-26S (18S), displayed intraspecific variation in number of loci among different ploidy levels. Each ploidy level was characterized by specific number of both 5S and 18S rDNA loci (two loci in tetraploid, five in pentaploid and six in hexaploid level). For three studied cytotypes (4x, 5x and 6x) all 5S rDNA loci were localized on the subcentromeric region of chromosomes, while 18S loci were situated on the telomeric region of short chromosome arms. Data of the FISH experiments show proportional increase of ribosomal loci number during polyploidization processes. PMID:24260668

Kharrat-Souissi, Amina; Siljak-Yakovlev, Sonja; Pustahija, Fatima; Chaieb, Mohamed

2012-01-01

408

[A comparative analysis of the helminth fauna of kittiwake Rissa tridactyla (Linnaeus, 1758) and glaucous gull Larus hyperboreus Gunnerus, 1767 from different parts of the Barents Sea].  

PubMed

The article is based on the results of helminthological observations made on kittiwake Rissa tridactyla and glaucous gull Larus hyperboreus in 1991-2001 in different areas of the Barents Sea (Eastern Murman coast, Franz Josef Land, Novaya Zemlya, Spitzbergen). 18 helminth species (2 trematodes, 11 cestodes, 4 nematodes, and 2 acanthocephalans) were recorded in the kittiwakes and 19 (3 trematodes, 9 cestodes, 5 nematodes and 2 acanthocephalans) species were recorded in the glaucous gulls. Trematodes were absent in the birds collected at the Franz Josef Land and the northern island of Novaya Zemlya. 3 trematode species, namely Gymnophallus sp. (somateria?), Microphallus sp. 1 (M. pseudopygmaeus), and Cryptocotyle lingua were found in the glaucous gulls of western Spitzbergen. It was supposed that the life cycles of these parasites can be completed there. On the other hand, coastal ecosystems of Arctic archipelagoes turn out to be favourable for the transmission of some cestodes. This is closely connected with the regional traits in the marine bird diet, namely the increase of the amphipod (intermediate hosts of hymenolepidids and some dilepidids) and polar cod (supposed second intermediate host for some tetrabothriids) portion in Arctic. As a result, cestodes are the base of the helminth fauna of kittiwakes and glaucous gulls of the Barents Sea, by their species richness, prevalence and abundance. Nematodes and acanthocephalans were represented by a few species with low infection intensity. The main ecological factors affected the regional difference in the species richness and abundance of the helminths parasitising kittiwakes and glaucous gulls in the Barents Sea are proposed. Those are regional climatic features and regional traits in the behaviour and food priorities of birds, and also the distribution of the helminths intermediate hosts, invertebrates and fishes. The phenomenon of host specificity lowering with respect to the definitive host was recorded in some cestode species (Microsomacanthus diorchis, M. microsoma, and Arctotaenia tetrabothrioides) on the border of their distribution ranges, the coastal ecosystems of Arctic. PMID:16396393

Kuklin, V V; Galaktionov, K V; Galkin, A K; Marasaev, S F

2005-01-01

409

Larvicidal potential of silver nanoparticles synthesized using fungus Cochliobolus lunatus against Aedes aegypti (Linnaeus, 1762) and Anopheles stephensi Liston (Diptera; Culicidae)  

Microsoft Academic Search

Larvicides play a vital role in controlling mosquitoes in their breeding sites. The present study was carried out to establish\\u000a the larvicidal activities of mycosynthesized silver nanoparticles (AgNPs) against vectors: Aedes aegypti and Anopheles stephensi responsible for diseases of public health importance. The AgNPs synthesized by filamentous fungus Cochliobolus lunatus, characterized by UV–Vis spectrophotometry, Fourier transform infrared spectroscopy, X-ray diffraction,

Rahul B. Salunkhe; Satish V. Patil; Chandrashekhar D. Patil; Bipinchandra K. Salunke

410

Evaluation of dietary exposure to minerals, trace elements and heavy metals from the muscle tissue of the lionfish Pterois volitans (Linnaeus 1758).  

PubMed

Twenty-five samples of Pterois volitans caught in Jamaican waters were analyzed for 25 essential, non-essential and toxic elements using Graphite Furnace Atomic Absorption Spectrophotometry (GF-AAS), Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Instrumental Neutron Activation Analysis (INAA). The mean values for calcium (355 mg/kg), copper (107 ?g/kg), iron (0.81 mg/kg), potassium (3481 mg/kg), magnesium (322 mg/kg), manganese (0.04 mg/kg), selenium (0.47 mg/kg), sodium (700 mg/kg) and zinc (4.46 mg/kg) were used to estimate dietary intake. The percentage contribution to provisional tolerable weekly intake for a 70 kg male and a 65 kg female were also estimated for the toxic elements arsenic (1.28% M, 1.38% F), cadmium (0.26% M. 0.28% F), mercury (3.85% M, 4.15% F) and lead (0.17% M, 0.18% F). To further assess the risk of mercury toxicity and the role of mitigation provided by selenium, selenium-mercury molar ratios were calculated for all samples. All samples were shown to have a molar excess of selenium. In addition the suggested selenium health benefit value was calculated, and was positive for all samples. It was concluded that P. volitans appears to contribute modestly to mineral and trace element nutrition, while not being a significant contributor to dietary exposure of toxic elements. PMID:23891700

Hoo Fung, Leslie A; Antoine, Johann M R; Grant, Charles N; Buddo, Dayne St A

2013-10-01

411

A laboratory assessment of the survival and vertical movement of two epibenthic gastropod species, Hydrobia ulvae (Pennant) and Littorina littorea (Linnaeus), after burial in sediment  

Microsoft Academic Search

Physical disturbance may result in the burial of the epibenthic fauna in sediment. The patches thus created undergo a `recovery' which may include the buried fauna migrating through the sediment to regain their original position in the sediment. A series of laboratory experiments were carried out to investigate the effects of prolonged burial on two epibenthic gastropod species, Hydrobia ulvae

W. U Chandrasekara; C. L. J Frid

1998-01-01

412

Effects of cadmium on some haematological and biochemical characteristics of Oreochromis niloticus (Linnaeus, 1758) dietary supplemented with tomato paste and vitamin E  

Microsoft Academic Search

The present study investigates the potential protective effects of tomato paste (9 mg\\/kg-lycopene) in comparison with vitamin\\u000a E (50 mg\\/kg) against the impacts of cadmium (Cd) toxicity (4.64 mg\\/l: ¼ of 96 h LC50) on fishes Cd exposed for 15 and 30 days.\\u000a Cd impacts were evaluated in terms of biological, haematological and biochemical characteristics. Cd significantly induced\\u000a free radicals in serum and liver. The

Imam A. A. MekkawyUsama; Usama M. Mahmoud; Ekbal T. Wassif; Mervat Naguib

2011-01-01

413

Effects of cadmium on some haematological and biochemical characteristics of Oreochromis niloticus (Linnaeus, 1758) dietary supplemented with tomato paste and vitamin E.  

PubMed

The present study investigates the potential protective effects of tomato paste (9 mg/kg-lycopene) in comparison with vitamin E (50 mg/kg) against the impacts of cadmium (Cd) toxicity (4.64 mg/l: ¼ of 96 h LC50) on fishes Cd exposed for 15 and 30 days. Cd impacts were evaluated in terms of biological, haematological and biochemical characteristics. Cd significantly induced free radicals in serum and liver. The activities of aspartate aminotransferase and alanine aminotransferase in serum were significantly increased due to Cd. Treatment with Cd caused a significant increase in Lipid peroxidation and DNA fragmentation in liver tissue and serum glucose and total lipid. On the other hand, Cd significantly led to decline in serum total protein, blood haemoglobin, red blood cell count, haematocrit value, mean corpuscular volume, mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration. Dietary supplementation with vitamin E and/or tomato paste to Cd-exposed fish declined significantly the increased lipid peroxidation and DNA fragmentation in liver tissue and the increased aspartate aminotransferase, alanine aminotransferase, glucose and total lipid in serum to the normal condition. This supplementation also significantly increased the declined serum total protein, blood haemoglobin, red blood cell count, haematocrit value, mean corpuscular volume, mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration to the normal state. Cd impacts and tomato paste/or vitamin E supplementations did not reflected on the condition factor of the fish. These findings demonstrated the beneficial diet supplementation of tomato paste phytonutrients and vitamin E in counteracting the harmful effects of Cd on the characters investigated. PMID:20625929

Mekkawy, Imam A A; Mahmoud, Usama M; Wassif, Ekbal T; Naguib, Mervat

2011-03-01

414

Reconciling Deep Calibration and Demographic History: Bayesian Inference of Post Glacial Colonization Patterns in Carcinus aestuarii (Nardo, 1847) and C. maenas (Linnaeus, 1758)  

PubMed Central

A precise inference of past demographic histories including dating of demographic events using Bayesian methods can only be achieved with the use of appropriate molecular rates and evolutionary models. Using a set of 596 mitochondrial cytochrome c oxidase I (COI) sequences of two sister species of European green crabs of the genus Carcinus (C. maenas and C. aestuarii), our study shows how chronologies of past evolutionary events change significantly with the application of revised molecular rates that incorporate biogeographic events for calibration and appropriate demographic priors. A clear signal of demographic expansion was found for both species, dated between 10,000 and 20,000 years ago, which places the expansions events in a time frame following the Last Glacial Maximum (LGM). In the case of C. aestuarii, a population expansion was only inferred for the Adriatic-Ionian, suggestive of a colonization event following the flooding of the Adriatic Sea (18,000 years ago). For C. maenas, the demographic expansion inferred for the continental populations of West and North Europe might result from a northward recolonization from a southern refugium when the ice sheet retreated after the LGM. Collectively, our results highlight the importance of using adequate calibrations and demographic priors in order to avoid considerable overestimates of evolutionary time scales. PMID:22164307

Marino, Ilaria A. M.; Pujolar, Jose Martin; Zane, Lorenzo

2011-01-01

415

GENETIC DIFFERENTIATION AND SHELL MORPHOLOGY OF TROCHULUS OREINOS (WAGNER, 1915) AND T. HISPIDUS (LINNAEUS, 1758) (PULMONATA: HYGROMIIDAE) IN THE NORTHEASTERN ALPS  

PubMed Central

Trochulus oreinos oreinos and T. oreinos scheerpeltzi are two land snail taxa endemic to the Northeastern Austrian Alps, which have been regarded as subspecies of the highly variable, widespread land snail T. hispidus. We analysed these three taxa morphologically and genetically to evaluate whether a delimitation between them is possible and, if so, to resolve their phylogenetic relationships. Shell morphological results revealed high similarity between the two T. oreinos taxa, and that they are clearly separated from T. hispidus. Additionally, the T. oreinos subspecies concur with respect to their habitat preferences, as they are both restricted to rocky high alpine areas, whereas the local form of T. hispidus is distributed over a wider altitudinal range in moist areas and scrubby perennial herb vegetation near water bodies. While the morphological and ecological results allow clear differentiation between T. hispidus and T. oreinos only, analyses of the mitochondrial cytochrome c oxidase subunit I and 16S rRNA genes revealed high sequence divergences between all three taxa, which indicates that they represent old lineages. The two T. oreinos taxa appear as distantly related sister groups, well separated from T. hispidus. Whether T. o. oreinos and T. o. scheerpeltzi should be considered as species cannot be decided at the current state of knowledge.

DUDA, MICHAEL; SATTMANN, HELMUT; HARING, ELISABETH; BARTEL, DANIELA; WINKLER, HANS; HARL, JOSEF; KRUCKENHAUSER, LUISE

2014-01-01

416

Feeding and nutritional ecology of the sea urchins Echinometra lucunter (Linnaeus, 1758) and Arbacia punctulata (Lamarck, 1816) Echinodermata: Echinoidea): the importance of animal foods.  

E-print Network

??Analysis of gut contents of Echinometra lucunter and Arbacia punctulata revealed that A. punctulata consumes significantly greater amounts of animal material – barnacles, mollusks, and bryozoans –… (more)

Pestovic, Jennifer Beth

2012-01-01

417

The day and night vertical distributions of calanoid copepods in the western Gulf of Mexico, with references to feeding relationships  

E-print Network

gracilis, P. abdominalis abdominalis, and P. xiphias. Plotted as in Fig. 7 (page 39) 14 The vertical distribution of the family Lucicutiidae, Lucicutia flavicornis, L. paraclausi, L. ovalis, and L. clausi. Plotted as in Fig. 7 (page 39) 57 15... grazers Hhincalanus cornutusg Hannocalanus minor, Lucicutia flavi cornis, Pleuromamma gracilis, P. abdominalis abdominalis, and E. hgalinus. Plotted as in Fig. 7 (page 39) . The percentage of LIST OF FIGURES (continuedj Number Pacae calanoids...

Minello, Thomas Joseph

2012-06-07

418

DESEMPENHO PRODUTIVO E DIGESTIBILIDADE PELA TILÁPIA DO NILO ( Oreochromis niloticus Linnaeus, 1758) ALIMENTADA COM DIET AS SUPLEMENT ADAS COM NÍVEIS CRESCENTES DE SILAGEM ÁCIDA DE PESCADO Yielo and digestibility performance by the Nile tilapia (Oreochromis niloticus Linnaeus, 1758) fed with diets with increasing levels of acid silage of fishing  

Microsoft Academic Search

The experiments were carried out in order to evaluate the apparent digestibility coefficients of the nutrients and gross energy of acid silage of filetage residues of the Nile tilapia. The treatments were based on the increasing levels (0, 10, 20, 30, 40%) of the acid silage by substitution of fish meal in the diets. In the digestibility assay a total

Maria Emília de Sous; Gomes Pimenta; Marinez Moraes de Oliveira; Priscila Vieira Rosa Logato; Carlos José Pimenta; Thiago Archangelo Freato

419

The component helminth community in six sympatric species of Ardeidae.  

PubMed

We studied the helminth communities in 6 sympatric species of Ardeidae (Ixobrychus minutus (Linnaeus, 1766), Nycticorax nycticorax (Linnaeus, 1758), Bubulcus ibis (Linnaeus, 1758), Egretta garzetta (Linnaeus, 1766), Ardea cinerea (Linnaeus, 1758), and Ardea purpurea (Linnaeus, 1766)) from "La Albufera de Valencia," Spain. The survey revealed 13 species of helminth parasites: 5 digeneans, 2 cestodes, and 6 nematodes. The component helminth communities of the Ardeidae examined are depauperate and conform to the pattern typically found in isolationist communities, probably because of their high trophic dependence on a few prey species. Evenness was positively correlated with richness and abundance, but host body weight was not correlated with the number of helminth species or with the total number of helminths. Ardea cinerea is more heavily infected than E. garzetta by Apharyngostrigea cornu, and B. ibis is more heavily infected than both Ardea cinerea and E. garzetta by Desportesius spinulatus. Apharyngostrigea cornu was positively associated with Desmidocercella numidica and D. spinulatus in A. cinerea. PMID:17089743

Navarro, Pilar; Lluch, Javier; Font, Enrique

2005-08-01

420

UNITED STATES DEPARTMENT OF THE INTERIOR, Fred A. Seaton, Secretary FISH AND WILDLIFE SERVICE, Arnie J. Suomela, Commissioner  

E-print Network

Linnaeus BY JACK W. GEHRINGER Drawings by the author FISHERY BULLETIN ISS From Fishery Bulletin of the Fish for this bulletin: Gehringer, Jack W Early development and metamorphosis of the ten-pounder, Elops saw'us I.linnaeus Leptocephalld forms of the ten-pounder, Elops SUI/TItS Linnaeus, 5.1 to 31.3 mm. in standard length, were

421

ARBRES PLANTATS PELS DOCTORS HONORIS CAUSA DE LA UIB  

E-print Network

, arbre de pisos 14/12/1992 Son Lledó 3 Raymond M. W. Rickett Juglans regia Linnaeus, noguer 14/05/1996 Son Lledó 7 Raimon Panikkar i Alemany Olea europaea Linnaeus, olivera 25/06/1997 Son Lledó 8 Miquel, magnòlia 19/02/1998 Son Lledó 10 Antoni Truyol i Serra Olea europaea Linnaeus, olivera 03/07/1998 Son Lledó

Oro, Daniel

422

Assimilation efficiencies and turnover rates of trace elements in marine bivalves: a comparison of oysters, clams and mussels  

Microsoft Academic Search

Assimilation efficiencies (AEs) and physiological turnover-rate constants (k) of six trace elements (Ag, Am, Cd, Co, Se, Zn) in four marine bivalves (Crassostrea virginica Gmelin, Macoma balthica Linnaeus, Mercenaria mercenaria Linnaeus, and Mytilus edulis Linnaeus) were measured in radiotracer-depuration experiments. Egestion rates of unassimilated elements were highest during\\u000a the first 24?h of depuration and declined thereafter. Significant egestion of unassimilated

J. R. Reinfelder; W.-X. Wang; S. N. Luoma; N. S. Fisher

1997-01-01

423

Division of Mammals The Museum of Southwestern BiologyMammal Division, established in  

E-print Network

,5 Alces americanus (Clinton, 1822) Elk2 Cervus elaphus Linnaeus, 1758 Mule Deer Odocoileus hemionus (Rafinesque, 1817) White-tailed Deer Odocoileus virginianus (Zimmermann, 1780) Antilocapridae Pronghorn

424

Biología reproductiva y caracterización morfológica de los estadios larvarios de Hermetia illucens (L., 1758) (Diptera: Stratiomyidae). Bases para su producción masiva en Europa.  

E-print Network

??Hermetia illucens (Linnaeus, 1758) es un díptero estratiomido (Diptera, Stratiomyidae) vulgarmente denominado "mosca soldado negra" (Black Soldier Fly, BSF en inglés) de origen posiblemente neotropical… (more)

Gobbi, Flavia Paola

2012-01-01

425

Pholeter anterouterus Fischthal & Nasir, 1974 (Digenea: Opisthorchiidae) redescribed, together with remarks on the genera Pholeter Odhner, 1914 and Phocitrema Goto & Ozaki, 1930 and their relationship to the centrocestine heterophyids.  

PubMed

Photoleter anterouterus Fischthal & Nasir, 1974, from Pelecanus occidentalis Linnaeus and Pelecanus erythrorhynchos Gmelin from Florida, USA and the ventro-genital complexes of Photeleter gastrophilus (Kossack, 1910) from Delphinus delphis Linnaeus from Queensland, Australia and of Phocitrema fusiforme Goto & Ozaki, 1930 from Alopex lagopus (Linnaeus) and Phoca vitulina Linnaeus from Alaska are redescribed. The genus Photoleter Odhner, 1914 is emended and compared with Phocitrema Goto & Ozaki, 1930 and both genera are compared with members of, and as a result transferred from the family Opisthorchiidae Looss, 1899 to, the subfamily Centrocestinae Looss, 1899, family Heterophyidae Odhner, 1914. PMID:876682

Pearson, J C; Courtney, C H

1977-06-01

426

Avian visual system configuration and behavioural response to object approach Bradley F. Blackwell a,*, Esteban Fernandez-Juricic b,1  

E-print Network

mourning dove Zenaida macroura Antipredator behaviour theory provides a framework to understand), and mourning doves, Zenaida macroura (Linnaeus), to object approach (a ground-based vehicle) and vehicle

Fernández-Juricic, Esteban

427

ORIGINAL PAPER Demographic parameters of reintroduced grey partridges  

E-print Network

decreased brood production rate. Keywords Perdix perdix . Reintroduction success . Annual changes . Weather Introduction The European populations of Grey partridge (Perdix perdix Linnaeus 1758) declined from mid-1950s

Paris-Sud XI, Université de

428

Systematic & Applied Acarology (2007) 12, 167176. 167 2007 Systematic & Applied Acarology Society  

E-print Network

ondatrae from deutonymphs collected from muskrats, Ondontra zibethicus (Linnaeus), in North America. Upon ondatrae Rupes and Whitaker, 1968; by original designation. Diagnosis Idiosoma with wart-like mammilations

Fashing, Norman

429

Leaf Beetles (Insecta: Coleoptera: Chrysomelidae) Suffer From Feeding on Fern Leaves1  

Microsoft Academic Search

Two age groups of larvae of Agelastica alni (Linnaeus, 1758) and Phratora vitellinae (Linnaeus, 1758) were provided with treated or untreated leaves of their actual host plant (Alnus glutinosa or Salix spp., respectively) or of the ferns Athyrium filix-femina, Dryopteris austriaca and D. filix-mas. \\

Michael SCHMITT; Sigrun BOPP

430

Scat detection dogs in wildlife research and management: application to grizzly and black  

E-print Network

arctos Linnaeus, 1758) and black bear (Ursus americanus Pallas, 1780) scats over a 5200-km2 area présence de fèces d'ours noirs (Ursus arctos Linnaeus, 1758) et de grizzlis (Ursus americanus Pallas, 1758 play drive, and willingness to strive for a reward. Dogs were trained to detect grizzly bear (Ursus

Wasser, Samuel

431

Patch use by bumblebees (Hymenoptera Apidae): temperature, wind, flower density and traplining  

Microsoft Academic Search

The foraging behaviour of the bumblebees Bombus hortorum (Linnaeus)\\/ Bombus ruderatus (Fabricius), Bombus pascuorum (Scopoli) and Bombus mesomelas Gerstaecker in a monospecific patch of Digitalis ferruginea Linnaeus has been investigated in relation to temperature, wind direction, plant density and patch configuration. D. ferruginea proved to be very attractive for bumblebees, aggregating a large number of foragers (up to two bumblebees

Livio Comba

1999-01-01

432

INDEX TO VOLUME 61 ABUNDANCE AND AGE O~' KVICHAK RIVER RED  

E-print Network

, and comparison of rudder fishes, Kyphosu8 secta.trix (Linnaeus) and K. i'l£i80l' (Cuvier) in 451-480 western, DISTRIBUTION, AND COMPARISON OF RUDD);R b'ISHES, Kyphof1lts sectatrix (Linnaeus) AND K. incisor (Cuvier

433

STOCKHOLM UNIVERSITY Dept of Sociology, Demography Unit / www.suda.su.se  

E-print Network

STOCKHOLM UNIVERSITY Dept of Sociology, Demography Unit / www.suda.su.se Linnaeus Center for Social otherwise noted, 13:00-14:30 in Södra Huset B900 25/8 Show & Tell 1/9 8/9 Thomas Lindh, Linnaeus Universitet

434

Feral Africanized honey bee ecology in a coastal prairie landscape  

E-print Network

latifolium (A. Michaux) H. Yates), Virginia wildrye (Elymus virginicus C. Linnaeus var. virginicus), southwestern bristlegrass (Setaria scheelei (E. von Steudel) A. Hitchcock), and Texas wintergrass (unpublished data, Welder Wildlife Foundation). Plants... latifolium (A. Michaux) H. Yates), Virginia wildrye (Elymus virginicus C. Linnaeus var. virginicus), southwestern bristlegrass (Setaria scheelei (E. von Steudel) A. Hitchcock), and Texas wintergrass (unpublished data, Welder Wildlife Foundation). Plants...

Baum, Kristen Anne

2004-09-30

435

First year growth and survival of common carp in two glacial lakes  

E-print Network

University, Brookings, SD, USA Abstract Cohorts of common carp, Cyprinus carpio Linnaeus, were monitored from the previous autumn. K E Y W O R D S : Common carp, Cyprinus carpio, overwinter survival, recruitment. Introduction Management strategies for common carp, Cyprinus carpio Linnaeus, tend to differ for native

436

Geese and grazing lawns: responses of the grass Festuca rubra to defoliation in a subarctic coastal marsh  

Microsoft Academic Search

In coastal marshes on James Bay and southern Hudson Bay, Canada, the grass Festuca rubra L. is heavily used for forage by both Snow (Chen caerulescens caerulescens (Linnaeus)) and Canada Geese (Branta canadensis (Linnaeus)). On Akimiski Island, James Bay, this grass occurs in a mosaic of short, heavily grazed patches and tall, lightly grazed patches. We investigated whether short plants

P. M. Kotanen P. C. O; P. M. Kotanen; K. F. Abraham

2006-01-01

437

MAMMALIAN SPECIES No. 794, pp. 19, 3 figs. Equus asinus. By Martha I. Grinder, Paul R. Krausman, and Robert S. Hoffmann  

E-print Network

Equus Linnaeus, 1758:73. Type species [Equus] caballus Linnae- us, 1758:73 (domestic), by original designation. Caballus Rafinesque, 1815:55. Substitute name for [Equus] ca- ballus Linnaeus, 1758. Asinus GrayMAMMALIAN SPECIES No. 794, pp. 1­9, 3 figs. Equus asinus. By Martha I. Grinder, Paul R. Krausman

Hayssen, Virginia

438

Bos grunniens and Bos mutus (Artiodactyla: Bovidae) DAVID M. LESLIE, JR. AND GEORGE B. SCHALLER  

E-print Network

described as ``a variety of fossil Bos urus'' (Hamilton-Smith 1827b:376). Bison Hamilton-Smith, 1827b:373. Type species Bos bison Linnaeus, 1758, by absolute tautonomy; described as a subgenus of Bos Linnaeus, 1758. Bison: Jardine, 1836:259. First use as a genus. Bibos Hodgson, 1837:499. Type species Bos

Hayssen, Virginia

439

Plant, Cell and Environment (2001) 24, 12431256 2001 Blackwell Science Ltd 1243  

E-print Network

gambelii Nutall, Quercus rubra Linnaeus and Quercus alba Linnaeus, have been shown to differ from species, and phylogenetic lineage of 17 species of oaks (Quercus) that occur sympatrically in northern cen- tral Florida et al. 1985; Abrams 1990). Several species of deciduous oaks in North America, including Quercus

Holbrook, N. Michele

440

Redescription of Testudotaenia testudo (Magath, 1924) (Eucestoda: Proteocephalidea), a parasite of Apalone  

E-print Network

of Apalone spinifera (Le Sueur) (Reptilia: Trionychidae) and Amia calva L. (Pisces: Amiidae) in North America turtle Apalone spinifera (Le Sueur) (Trionychidae) and the bowfin Amia calva Linnaeus (Amiidae) from softshell turtles Apalone spinifera (Lesueur) and bowfins Amia calva Linnaeus collected from Reelfoot Lake

Citi, Sandra

441

Some morphological aspects of the mouthparts of Italian blood-sucking muscids (Diptera, Stomoxyinae).  

PubMed

Scanning electron microscopy (SEM) observations on the mouthparts of four species of blood-sucking muscid symbovine flies (Stomoxys calcitrans Linnaeus, Haematobia irritans Linnaeus, H. titillans Bezzi, and Haematobosca stimulans Meigen) are described. The morphology of some structures (haustellum, prestomal teeth and petiolate blades) is compared in order to draw attention to those features involved in the feeding process on the hosts. PMID:9257341

Giangaspero, A; Tarasco, E; Urso, P S; Lia, R

1996-12-01

442

77 FR 53236 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)  

Federal Register 2010, 2011, 2012, 2013

...White Island, ASPA 138-Linnaeus Terrace, and, ASPA 154-Botany Bay to conduct a review of their management plans. The Antarctic...White Island, ASPA 138-Linnaeus Terrace, and, ASPA 154-Botany Bay. Dates August 15, 2012 to August 31, 2017. Nadene...

2012-08-31

443

Collection and collation: theory and practice of Linnaean botany  

Microsoft Academic Search

Historians and philosophers of science have interpreted the taxonomic theory of Carl Linnaeus (1707–1778) as an ‘essentialist’, ‘Aristotelian’, or even ‘scholastic’ one. This interpretation is flatly contradicted by what Linnaeus himself had to say about taxonomy in Systema naturae (1735), Fundamenta botanica (1736) and Genera plantarum (1737). This paper straightens out some of the more basic misinterpretations by showing that:

Staffan Müller-Wille

2007-01-01

444

Indiana Cooperative Agricultural Pest Survey Committee Core Work Plan Federal FY 2006  

E-print Network

Coordinator: Dr. Christopher M. F. Pierce State: Indiana Project: Hot Zone (Exotic invasive bark and wood (Linnaeus) European spruce bark beetle Monochamus alternatus Hope Japanese pine sawyer beetle Orthotomicus-toothed spruce engraver Tetropium castaneum Linnaeus Black spruce longhorned beetle Tetropium fuscum (Fabricius

Ginzel, Matthew

445

Indiana Cooperative Agricultural Pest Survey Committee Core Work Plan Federal FY 2007  

E-print Network

Coordinator: Dr. Christopher M. F. Pierce State: Indiana Project: Hot Zone (Exotic invasive bark and wood (Linnaeus) European spruce bark beetle Monochamus alternatus Hope Japanese pine sawyer beetle Orthotomicus-toothed spruce engraver Tetropium castaneum Linnaeus Black spruce longhorned beetle Tetropium fuscum (Fabricius

Ginzel, Matthew

446

BULLETIN OF MARINE SCIENCE, 74(1): 8199, 2004 81Bulletin of Marine Science  

E-print Network

OF HABITAT USE BY FISHES ASSOCIATED WITH SARGASSUM MATS IN THE NORTHWESTERN GULF OF MEXICO R. J. David Wells and Jay R. Rooker ABSTRACT Distribution and abundance of fishes associated with Sargassum mats saxatilis (Linnaeus, 1758), sargassum fish Histrio histrio (Linnaeus, 1758), and greater amber- jack Seriola

Rooker, Jay R.

447

Bulletin of Entomological Research (2004) 94, 283289 DOI: 10.1079/BER2004299 Effectiveness of the defence mechanism  

E-print Network

lizard Anolis carolinensis Voigt as a model predator. Caterpillars of Pieris rapae Linnaeus and Pieris brassicae Linnaeus served as control prey species that do not sequester glucosinolates. Lizards attacked far. However, P. rapae larvae topically treated with extracts of haemolymph of A. rosae had no deterrent effect

Candolin, Ulrika

448

New records of alien monogeneans from Lepomis gibbosus and Silurus glanis in Italy.  

PubMed

The first geographical records of five alien monogeneans for Italy is reported. Four species have been detected from Lepomis gibbosus (Linnaeus, 1758): Actinocleidus recurvatus Mizelle et Donahue, 1944, Actinocleidus oculatus (Mueller, 1934), Urocleidus similis (Mueller, 1936) and Urocleidus dispar (Mueller, 1936); one species from Silurus glanis Linnaeus, 1758: Thaparocleidus vistulensis (Siwak, 1932) n. comb. PMID:15267103

Galli, P; Stefani, F; Benzoni, F; Crosa, G; Zullini, A

2003-12-01

449

Etude comparative des conditions environnementales potentiellement limitantes dans l'etablissement d'une espece aquatique envahissante Clona intestinalis (Linnaeus, 1767) dans deux systemes de bassins versants a l'ile-du Prince-Edouard, Canada  

NASA Astrophysics Data System (ADS)

Aquatic invasive species are a growing global problem. Since the late 1990s, the province of Prince Edward Island (PEI), located on the east coast of Canada, has seen the introduction and the establishment of several species of tunicate. Shortly after their introduction into new aquatic systems such as the Brudenell and Montague rivers, tunicate population exploded to extremely high levels which have had significant impacts on native species populations, the fisheries and aquaculture industries and on the economy of local communities. Brudenell and Montague rivers are located southeast of the province. Comparatively, the aquatic system of Orwell Bay, which is also located in this area, is an exception to the successful establishment of tunicates, despite several successive unintentional introductions. The objective of this research is to identify and understand the main key factors that could potentially limit the establishment of a tunicate species in PEI. This study is based on a comparative approach between the two aquatic systems previously mentioned. The results of this research shows that the Orwell Bay system is characterized by a slightly higher percentage of terrestrial areas with potential soil loss, a shorter water renewal time, a shallower aquatic area, a higher turbidity level, a slightly lower salinity and a slightly higher temperature than the Brudenell and Montague rivers system. One of the environmental variables that showed a significant difference between the two systems in the analysis is turbidity. This study also examines the relationship between different turbidity levels, in terms of suspended inorganic matter, and its potential role in the establishment of the invasive tunicate C. intestinalis. Two laboratory experiments were conducted to evaluate the effect of suspended inorganic matter on primary stages of this species of tunicate. The results show a significant negative effect at higher suspended inorganic matter levels on fertilization rate, larval establishment and survival of juvenile tunicates. All these elements can potentially be key factors on limiting the establishment of a population of C. intestinalis in the Orwell Bay aquatic system. Keywords: Invasive species, watershed, biogeography, tunicate, Ciona intestinalis, universal soil loss equation, hydrodynamic modeling, correspondence analysis, turbidity, environmental tolerance.

Mclaughlin, Janelle

450

Predator–prey relations between age-1+ summer flounder ( Paralichthys dentatus, Linnaeus) and age-0 winter flounder ( Pseudopleuronectes americanus, Walbaum): predator diets, prey selection, and effects of sediments and macrophytes  

Microsoft Academic Search

Laboratory experiments and weekly trammel net surveys in the Navesink River, New Jersey (USA) were used to examine the predator–prey interaction between age-1+ summer flounder (Paralichthys dentatus) and age-0 winter flounder (Pseudopleuronectes americanus). Winter flounder (24–67 mm TL) were the dominant piscine prey of summer flounder (n=95, 252–648 mm TL) collected in trammel nets. We observed a temporal shift in

J. P Manderson; B. A Phelan; A. W Stoner; J Hilbert

2000-01-01

451

[Helminths of Pampas fox, Pseudalopex gymnocercus (Fischer, 1814) and of Crab-eating fox, Cerdocyon thous (Linnaeus, 1766) in the South of the State of Rio Grande do Sul, Brazil].  

PubMed

Forty wild canids were captured by live trap at Municipalities of Pedro Osorio and Pelotas in Southern of the State of Rio Grande do Sul and they were transported to the Parasitology Laboratory at the Universidade Federal de Pelotas. After they were posted, segments of intestinal, respiratory and urinary tracts and liver were separated and examined. Animal skulls were used for taxonomic identification. Of forty wild animals trapped, 22 (55%) were Pseudalopex gymnocercus and 22 (55%) Cerdocyon thous. The most prevalent nematodes were: Ancylostoma caninum (45.4 in P. gymnocercus and 22.2% in C. thous), Molineus felineus (9.9 in P. gymnocercus and 5.6% in C. thous), Strongyloides sp. (22.7 in P. gymnocercus and 16.7% in C. thous), Trichuris sp. (13.6 in P. gymnocercus and 11.1% in C. thous), and Capillaria hepatica (13.6 in P. gymnocercus and 5.5% in C. thous). The trematodes observed were: Alaria alata (36.4 in P. gymnocercus and 50.0% in C. thous), and Asthemia heterolecithodes in 5.6% C. thous. Cestodes were identified as Spirometra sp. (61.1% in C. thous and 54.5 in P. gymnocercus), Diphyllobothriidae, (81.8 in P. gymnocercus and 77.8% in C. thous) and an Acantocephala of the genus Centrorhynchus was also observed in 5.6% of C. thous only. These results indicated the helminths fauna in wild canids from the studied area. PMID:18823576

Ruas, Jerônimo L; Muller, Gertrud; Farias, Nara Amélia R; Gallina, Tiago; Lucas, Andreia S; Pappen, Felipe G; Sinkoc, Afonso L; Brum, João Guilherme W

2008-01-01

452

Das Auftreten des Seidenschwanzes Bombycilla garrulus (LINNAEUS, 1758) in der Steiermark unter besonderer Berücksichtigung der Einflüge in den Wintern 1988\\/89, 1990\\/91 und 2000\\/2001 (Aves)  

Microsoft Academic Search

The data for this publication originate from all essential published ornitho- logical information's concerning Styria. Appeals in national and regional ornithological journals were published to get more information about the irruptions in 1988\\/89, 1990\\/91 and 2000\\/2001. In Styria only in eighteen winters out of 49 no Waxwings could be recorded and normally the birds reach all parts of the country.

Otto SAMWALD

453

Hypoxia influences expression profile of Pleckstrin homology-like domain, family A, member 2 in Indian catfish, Clarias batrachus (Linnaeus, 1758): a new candidate gene for hypoxia tolerance in fish.  

PubMed

Several physiologically important genes were found to be regulated by hypoxia at the transcriptional level. The Pleckstrin homology-like domain, family A, member 2 (PHLDA2) gene was previously identified as an imprinted gene. The present study was aimed to determine the structure of complete cDNA and the deduced protein of PHLDA2 along with analysing the changes in its mRNA expression in Clarias batrachus tissues under hypoxic conditions. The complete cDNA of CbPHLDA2 gene consisted of 1009 nucleotides with an open reading frame of 417 nucleotides. The deduced CbPHLDA2 protein of 139 amino acids shared high homology with PHLD2A of other fishes as well as that of vertebrates. Importantly, a single amino acid (asparagine/lysine) insertion was identified in the PH domain of CbPHLDA2 and other fishes, which was absent in other vertebrates studied. Furthermore, under normoxic conditions, CbPHLDA2 was constitutively expressed with varying levels in analysed tissues. Short- and long-term hypoxia exposure resulted in significant changes in the expression of CbPHLDA2 in liver, spleen, head kidney, brain and muscle in a time-dependent manner. The results suggested that CbPHLDA2 might play an important role for adaptive significance under hypoxia. PMID:24845507

Mohindra, Vindhya; Tripathi, Ratnesh K; Yadav, Prabhaker; Singh, Rajeev K; Lal, Kuldeep K

2014-06-01

454

Predator-prey relations between age-1+ summer flounder (Paralichthys dentatus, Linnaeus) and age-0 winter flounder (Pseudopleuronectes americanus, Walbaum): predator diets, prey selection, and effects of sediments and macrophytes.  

PubMed

Laboratory experiments and weekly trammel net surveys in the Navesink River, New Jersey (USA) were used to examine the predator-prey interaction between age-1+ summer flounder (Paralichthys dentatus) and age-0 winter flounder (Pseudopleuronectes americanus). Winter flounder (24-67 mm TL) were the dominant piscine prey of summer flounder (n=95, 252-648 mm TL) collected in trammel nets. We observed a temporal shift in summer flounder diets from sand shrimp (Crangon septemspinosa) and winter flounder, dominant during June and early July, to blue crabs (Callinectes sapidus) and other fishes (primarily Atlantic silversides, Menidia menidia and Atlantic menhaden, Brevortia tyrannus) later in the summer. Variations in prey selection appeared to be related to changes in the spatial distribution of predators and spatio-temporal variation in prey availability. In laboratory experiments, summer flounder (271-345 mm total length, TL) preferred demersal winter flounder to a pelagic fish (Atlantic silversides) and a benthic invertebrate (sand shrimp) prey, and the vulnerability of winter flounder increased with increasing prey body size from 20 to 90 mm TL. Experiments testing habitat effects showed that mortality of winter flounder in three different size classes (20-29, 40-49, 60-69 mm TL) was not influenced by sediment grain sizes permitting differential burial of the prey. However, vegetation enhanced survival, with fish suffering lower mortality in eelgrass (Zostera marina, 15+/-0.04%) than in sea lettuce (Ulva lactuca, 38+/-0.04%) or bare sand (70+/-0.07%) when the macrophytes were planted to produce similar leaf surface areas (5000 cm(2) m(-2)). Prey vulnerability appeared to be related to the role of vision in the predator's attack strategy and prey activity levels. PMID:10958899

Manderson; Phelan; Stoner; Hilbert

2000-08-23

455

A review of the subfamily Harpypalpinae Fain, 1972 (Acariformes: Harpirhynchidae)-parasites of passerine birds.  

PubMed

The subfamily Harpypalpinae Fain, 1972 (Acariformes: Cheyletoidea: Harpirhynchidae) is revised. Diagnoses of the subfamily and its two constituent genera, Harpypalpus Dubinin, 1957 and Harpypalpoides Lombert and Moss, 1979, and keys to females of all known species are provided. Data on harpypalpine hosts and distribution are summarized, and nine new species are described: Harpypalpus lonchura sp. nov. from Lonchura castaneothorax (Gould) (Estrildidae) in Australia, Harpypalpus pyrrhula sp. nov. from Pyrrhula pyrrhula (Linnaeus) (Fringillidae) in the Netherlands, Harpypalpus sturnus sp. nov. from Sturnus vulgaris Linnaeus (Sturnidae) in the Netherlands, Harpypalpus taeniopygia sp. nov. from Taeniopygia guttata (Vieillot) (Estrildidae) in Australia, Harpypalpoides hirundinoides sp. nov. from Hirundo rustica Linnaeus (Hirundinidae) in the Netherlands, Harpypalpoides johnstoni sp. nov. from Fringilla coelebs Linnaeus (Fringillidae) (type host) in the Netherlands and Fringilla montifringilla Linnaeus in Kazakhstan, Harpypalpoides regulus sp. nov. from Regulus regulus (Linnaeus) (Regulidae) in the Netherlands, Harpypalpoides sitta sp. nov. from Sitta pygmaea Vigors (Sittidae) in the USA (Arizona, California), and Harpypalpoides sylvia sp. nov. from Sylvia atricapilla (Linnaeus) (Sylviidae) in the Netherlands.  PMID:25283118

Bochkov, Andre V; Klompen, Hans

2014-01-01

456

Nomenclatural status of the 'pocketknife fly': Stomoxoides Schaeffer, 1766 (Diptera: Conopidae).  

PubMed

The nomenclatural status of the genus Stomoxoides Schaeffer, 1766 is discussed and a timeline of usage is given. The name is shown to be available and date from Schaeffer's 1766 work, and by invoking Article 70.3 of the ICZN Code, the type species of Stomoxoides is fixed as Conops ferrugineus Linnaeus, 1761, misidentified as Conops testacea Linnaeus, 1767 in the fixation by subsequent monotypy as proposed by Linnaeus in 1767. Stomoxoides is thereby synonymous with Sicus Scopoli, 1763 as originally proposed by Yeats in 1773.  PMID:25283420

Evenhuis, Neal L; Pape, Thomas

2014-01-01

457

Leishmania(Leishmania) chagasi in captive wild felids in Brazil.  

PubMed

This study used a PCR-RFLP test to determine the presence of Leishmania (Leishmania) chagasi in 16 captive wild felids [seven Puma concolor (Linnaeus, 1771); five Panthera onca (Linnaeus, 1758) and four Leopardus pardalis (Linnaeus, 1758)] at the zoological park of the Federal University of Mato Grosso, Brazil. Amplification of Leishmania spp. DNA was seen in samples from five pumas and one jaguar, and the species was characterized as L. chagasi using restriction enzymes. It is already known that domestic felids can act as a reservoir of L. chagasi in endemic areas, and further studies are necessary to investigate their participation in the epidemiological chain of leishmaniasis. PMID:19740501

Dahroug, Magyda A A; Almeida, Arleana B P F; Sousa, Valéria R F; Dutra, Valéria; Turbino, Nívea C M R; Nakazato, Luciano; de Souza, Roberto L

2010-01-01

458

Indiana Cooperative Agricultural Pest Survey Committee Core Work Plan Federal FY 2008  

E-print Network

domesticum (Linnaeus) European hardwood ambrosia beetle Xyleborus spp. Exotic bark beetles Xylotrechus spp Coordinator: Larry Bledsoe State: Indiana Project: Risk Based (Exotic invasive bark and wood boring beetles) Citrus longhorned beetle Anoplophora glabripennis (Motschulsky) Asian longhorned beetle Callidiellum

Ginzel, Matthew

459

Post-release mortality of bonefish, Albula vulpes, exposed to different handling practices during  

E-print Network

Post-release mortality of bonefish, Albula vulpes, exposed to different handling practices during-release mortality of bonefish, Albula vulpes (Linnaeus), in El- euthera, The Bahamas, subjected to gentle handling

Cooke, Steven J.

460

The attainment of sexual maturity in sharks is a major developmental mile-  

E-print Network

at maturity in three pelagic sharks (Lamna nasus, Isurus oxyrinchus, and Prionace glauca) from New Zealand (Isurus oxyrinchus Rafinesque, 1810), and blue (Prionace glauca (Linnaeus, 1758)) sharks. These spe- cies

461

Introduction Organisms are able to exchange heat with the environment  

E-print Network

of evaporation occurring from the mouth, the skin, and the cloaca of Inca doves Columbina inca Lesson and Eurasian quail Coturnix coturnix Linnaeus. Inca doves showed no significant increase in cutaneous

Denardo, Dale

462

Mimulus suksdorfii in NM ............................1  

E-print Network

Mimulus suksdorfii in NM ............................1 Plant Distribution Reports cognitiorem tradit. -- Linnaeus Number 51 Verification of Mimulus suksdorfii in New Mexico Chick Keller 4470 Ridgeway, Los Alamos, NM 87544 [Ed. Note: Mimulus suksdorfii Gray was listed for New Mexico by Kartesz

Johnson, Eric E.

463

78 FR 63369 - Gypsy Moth Generally Infested Areas; Additions in Wisconsin  

Federal Register 2010, 2011, 2012, 2013

...137, Riverdale, MD 20737; (301) 851-2184. SUPPLEMENTARY INFORMATION: Background The gypsy moth, Lymantria dispar (Linnaeus), is a destructive pest of forest, shade, and commercial trees such as nursery stock and Christmas trees. The gypsy...

2013-10-24

464

7 CFR 319.77-1 - Definitions.  

...Canada, or may be provided on a separate certificate. Gypsy moth. The insect known as the gypsy moth, Lymantria dispar (Linnaeus), in any stage of development. Import (imported, importation). To bring or move into the territorial limits of...

2014-01-01

465

7 CFR 301.45 - Notice of quarantine; restriction on interstate movement of specified regulated articles.  

...Vermont, Virginia, West Virginia, and Wisconsin in order to prevent the spread of the gypsy moth, Lymantria dispar (Linnaeus), a dangerous insect injurious to forests and shade trees and not theretofore widely prevalent or distributed within...

2014-01-01

466

7 CFR 319.77-1 - Definitions.  

Code of Federal Regulations, 2013 CFR

...Canada, or may be provided on a separate certificate. Gypsy moth. The insect known as the gypsy moth, Lymantria dispar (Linnaeus), in any stage of development. Import (imported, importation). To bring or move into the territorial limits of...

2013-01-01

467

76 FR 60358 - Gypsy Moth Generally Infested Areas; Additions in Indiana, Maine, Ohio, Virginia, West Virginia...  

Federal Register 2010, 2011, 2012, 2013

...137, Riverdale, MD 20737; (301) 734-5332. SUPPLEMENTARY INFORMATION: Background The gypsy moth, Lymantria dispar (Linnaeus), is a destructive pest of forest, shade, and commercial trees such as nursery stock and Christmas trees. The gypsy...

2011-09-29

468

7 CFR 319.77-1 - Definitions.  

Code of Federal Regulations, 2012 CFR

...Canada, or may be provided on a separate certificate. Gypsy moth. The insect known as the gypsy moth, Lymantria dispar (Linnaeus), in any stage of development. Import (imported, importation). To bring or move into the territorial limits of...

2012-01-01

469

7 CFR 301.45 - Notice of quarantine; restriction on interstate movement of specified regulated articles.  

Code of Federal Regulations, 2010 CFR

...Vermont, Virginia, West Virginia, and Wisconsin in order to prevent the spread of the gypsy moth, Lymantria dispar (Linnaeus), a dangerous insect injurious to forests and shade trees and not theretofore widely prevalent or distributed within...

2010-01-01

470

7 CFR 319.77-1 - Definitions.  

Code of Federal Regulations, 2011 CFR

...Canada, or may be provided on a separate certificate. Gypsy moth. The insect known as the gypsy moth, Lymantria dispar (Linnaeus), in any stage of development. Import (imported, importation). To bring or move into the territorial limits of...

2011-01-01

471

7 CFR 301.45 - Notice of quarantine; restriction on interstate movement of specified regulated articles.  

Code of Federal Regulations, 2011 CFR

...Vermont, Virginia, West Virginia, and Wisconsin in order to prevent the spread of the gypsy moth, Lymantria dispar (Linnaeus), a dangerous insect injurious to forests and shade trees and not theretofore widely prevalent or distributed within...

2011-01-01

472

7 CFR 301.45 - Notice of quarantine; restriction on interstate movement of specified regulated articles.  

Code of Federal Regulations, 2013 CFR

...Vermont, Virginia, West Virginia, and Wisconsin in order to prevent the spread of the gypsy moth, Lymantria dispar (Linnaeus), a dangerous insect injurious to forests and shade trees and not theretofore widely prevalent or distributed within...

2013-01-01

473

7 CFR 301.45 - Notice of quarantine; restriction on interstate movement of specified regulated articles.  

Code of Federal Regulations, 2012 CFR

...Vermont, Virginia, West Virginia, and Wisconsin in order to prevent the spread of the gypsy moth, Lymantria dispar (Linnaeus), a dangerous insect injurious to forests and shade trees and not theretofore widely prevalent or distributed within...

2012-01-01

474

Biology of Aprostocetus Hagenowii (Ratzeburg), a parasitoid of cockroaches, and insect community composition in an interiorscape  

E-print Network

The insect community of the rainforest pyramid at Moody Gardens, Galveston. Texas, was determined. The insect community within the rainforest pyramid consisted of Periplaneta americana (Linnaeus), Periplaneta australasiae (Fabricius), Evania...

Johnson, Elizabrth N.M

2012-06-07

475

Graellsia, 63(1): 101-110 (2007) Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona, Avda. Diagonal 645, 08028 Barcelona, Spain.  

E-print Network

) (Actinopterygii, Cyprinidae) en la península Ibérica: el papel de los embalses Desde su aparición en un afluente (LINNAEUS, 1758) (ACTINOPTERYGII, CYPRINIDAE) IN THE IBERIAN PENINSULA: THE ROLE OF RESERVOIRS #12

476

Naturwissenschaften (2004) 91:2225 DOI 10.1007/s00114-003-0489-1  

E-print Network

. Chiappe Department of Vertebrate Paleontology, Natural History Museum of Los Angeles County, 900 Mesozoic avian. Systematic paleontology ­ Aves Linnaeus 1758 ­ Enantiornithes Walker 1981, Mr. Han. Holotype IVPP V 11309 (Institute of Vertebrate Paleontology and Paleoanthropology, Chinese

Chuong, Cheng-Ming

477

The Blue Whale, Balaenoptera musculus  

E-print Network

The Blue Whale, Balaenoptera musculus SALLY A. MIZROCH, DALE W. RICE, and JEFFREY M. BREIWICK Introduction The blue whale, Balaenoptera mus- culus (Linnaeus, 1758), is not only the largest of the whales

478

Fisheries Research 110 (2011) 9297 Contents lists available at ScienceDirect  

E-print Network

Cyprinus carpio population in relation to thermal influences on invasive populations Dalmas O. Oyugia carp Cyprinus carpio (Linnaeus, 1758) population of Lake Naivasha between June 2008 and November 2009

Cucherousset, Julien

479

Fedorka & Mousseau: Nuptial Gifts in a Cricket 317 TIBIAL SPUR FEEDING IN GROUND CRICKETS  

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with the volume of sperm transferred (Thornhill 1976). In contrast, nuptial feeding in the osprey, Pandion haliaetus (Linnaeus), acts as paternal investment since it was positively associated with offspring growth

Fedorka, Ken

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45EFFECTS OF SEED DISPERSER SOCIAL BEHAVIOR ON PATTERNS OF SEED MOVEMENT AND DEPOSITION Oecol. Bras., 13(1): 45-57, 2009  

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markers in the mobile butterfly Maniola jurtina (Linnaeus) (Lepidoptera, Nymphalidae) LEONARDO DAPPORTO1, Sustainability and Regeneration, Mellor Building, Staffordshire University, College Road, Stoke on Trent ST4 2DE

Karubian, Jordan

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A Distributed Framework for Coordinated Heavy-duty Vehicle ...  

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CESS Linnaeus Centre and the Department of Automatic Control at. KTH Royal .... fuel at a slower rate because of reduced air drag [19]; these savings are ...... Intelligent Vehicle Highwa