Abstract: Oithona spp. is the most abundant copepod in many marine ecosystems including the North Atlantic. However, because of ...
NASA Website
The role of Oithona spp. in the marine productivity of the North Atlantic ... Oithona spp. is the most abundant copepod in many marine ecosystems including ...
... mature copepods are determinate in growth, not undergoing mitosis; cell number ... individual somatic nuclei in populations of Eucyclops ensifer from ... ...
NBII National Biological Information Infrastructure
... This is probably because cyclopoid copepod females store sperm to fertilize several egg clutches. Mesocyclops aspericornis males copulate with as many ... ...
The intensive study of the Arabian Sea during the 1990s included mesozooplankton investigations by the Netherlands, United Kingdom, Pakistan, India, Germany and the United States. Several major discoveries resulted. First, the high biomass of mesozooplankton observed during the Northeast Monsoon season is sustained by primary productivity stimulated by convective mixing and by an active microbial ...
NASA Astrophysics Data System (ADS)
... The toxic substance of greatest practical significance is chlorine in tap water. The U.S. Environmental Protection Agency standard of 0.2 ppm chlorine for tap water is precariously close to the ... ...
Application of the organophosphorus insecticide temephos to a natural pond in central Minnesota was followed by reduction within 24 hr in all cladocerans, in Diaptomus leptopus and in Chaoborus americanus, and increases in cyclopoid copepods, copepod naup...
National Technical Information Service (NTIS)
Application of the organophosphorus insecticide temephos to a natural pond in central Minnesota was followed by reduction within 24 hr in all cladocerans, in Diaptomus leptopus and in Chaoborus americanus, and increases in cyclopoid copepods, copepod nauplii and rotifer Keratella...
EPA Science Inventory
The effects of diet quality on larval walleye (Stizostedion vitreum vitreum) growth and survival are described. The cyclopoid copepod Diacyclops thomasi consumed larval walleyes within 10 min at dense copepod concentrations and within 1 day at lower densi...
The effects of diet quality on larval walleye (Stizostedion vitreum vitreum) growth and survival are described. The cyclopoid copepod Diacyclops thomasi consumed larval walleyes within 10 min at dense copepod concentrations and within 1 day at lower densities (500 organisms/L). A...
... cyclopoid copepod belonging to the family Enterognathidae, Parenterognathus troglodytes, is described from a gall on the calyx ... 2 or 4 setal elements). Type species. Parenterognathus troglodytes n. sp...
Cyclopoid copepod Pike, Esox lucius Eubothrium sp. Eubo Cyclopoid copepod Salmonid fish, or burbot Lota lota Pike, Esox lucius, and burbot, Lota lota ACANTHOCEPHALA Corynosoma semerme Csem amphipod, Monoporeia�2 12 0.089 Lota lota (Bothnian Bay, n � 83) 47.0 (31�72) Diphyllobothrium dendriticum 21 1�12 73 ...
E-print Network
Heron, Gayle A., and David M. Damkaer. Five Species of Deep-Water Cyclopoid Copepods from the Plankton of the Gulf of Alaska. Smithsonian Contributions to Zoology, 20: 1-24. 1969. This report considers five species of Cyclopoida found in samples collected...
Copepods have twelve developmental stages. Current keys permit identification of only the adults, one-twelfth of the stages, to species. Each immature copepod is of a certain species and a certain stage, and for the older stages, a certain sex. This paper...
Although small copepods are one of the main dietary sources for many commercially important fish, their role in the pelagic trophic dynamics has traditionally been underestimated due to the methodology commonly used in plankton sampling. Temporal variation in abundance of adults and nauplii of small copepods (particularly Oithona ...
Pike Esox lucius larvae captured fewer calanoid and cyclopoid copepods in turbid than in clear water, whereas no differences were detected in feeding rates on Daphnia longispina. Decreased capture of copepods may lead to lower growth and survival of E. lucius larvae in turbid areas, in particular, if cladocerans are scarce. ...
PubMed
Baikalian cyclopoids represent one of the richest endemic faunas of freshwater cyclopoid copepods. The genus Diacyclops Kiefer, 1927 is the most numerous by species number in the lake. In this work, molecular-phylogenetic analysis of 14 species and 1 sub-species from Lake Baikal and its water catchment basin is performed. The regions ...
copepidite stages of Pseudocalanus spp. (C2 and Cl) and �cartia spp.; Metriididae C1; all stages of oithona spp. most cor�mon in the Gulf of Alaska; and other small copepods. Taxa (size/Life history stages, lsnm, �smm, #12;19 Table 1. Continued Taxon Invertebrata La:l�acea Metridia spp. Metridia pacifica
Euchaeta media � Euchirella amoena � Euchirella intermedia ... Oculosetella gracilis � Oithona nana � Oithona oculata � Oithona plumifera � Oithona setigera ...
A new species of cyclopoid copepod, Ozmana huarpium, is described as a symbiont to Pomacea canaliculata (Lamarck 1822) (Caenogastropoda, Ampullariidae). Rather large numbers (about one hundred copepods per snail) were found, although there was no evidence of harm to the host. To our knowledge, O. haemophila (symbiont to P. maculata), ...
The vertical distribution of zooplankton on the continental shelf of northeastern Florida was determined in and around upwelling events and related to concentrations of particulate matter. Doliolida and the cladoceran Penilia avirostris were significantly more abundant in upwelled water < 22/sup 0/C and the cyclopoid genus Oncaea more abundant at warmer temperatures. The ...
Energy Citations Database
reduces daphnia feeding rate � behavioral mechanisms. Freshw Biol 25:357�365. 53. Kritzberg ES, Cole JJ support to zooplankton in two contrasting lakes. Zooplankton (Holopedium, Daphnia, and Leptodiaptomus cladocerans including Daphnia (D. rosea and D. pulex) and Holopedium gibberum as well as cyclopoid copepods
, the naidid oligochaetes Paranais littoralis and Dero digitata, immature tubificid oligochaetes (without. 28 56 35 53 693 94 4 0 963 7.18 Cryptochironomus sp. 2 3 36 221 82 84 1 0 429 3.20 Dero digitata 0 0 almost exclusively at Pumps 2 and 3. Cyclopoid copepods were most abundant at Pump 4, as were D. digitata
Zooplankton taxa were counted in 8 to 19 samples from each of 11 cruises in the New York Bight between September 1974 and September 1975. Major seasonal events were an influx into the region of tropical-subtropical copepod species during autumm 1974 and summer 1975, an offshore (> 50 m water depth) zooplankton abundance maximum in March dominated by the pteropod Limacina ...
A large class of marine zooplankton, in particular among copepods, are ``ambush feeders'', who wait for their prey and capture them by surprise attacks. The successful attack must happen so rapidly and unexpectedly that the prey cannot escape and the fluid disturbances created by the attack must be so small that the prey is not pushed away by the flow created by the much ...
We investigated the spatial and seasonal variations in copepod assemblage, distribution and diversity in a wide spatial gradient (including the turbidity maximum) in the Chikugo estuary. Copepod samples were collected over a period of 12 months from April 2004 to March 2005. Hydrographical parameters such as temperature, salinity, turbidity (nephelometric ...
We investigated the fish assemblage and distribution, diversity, and diets in relation to copepod prey communities along the Chikugo estuarine gradient in the Ariake Bay, Japan. Larval and juvenile fish samples, ambient copepod samples were collected and major hydrographic parameters were recorded at seven selected sampling stations (salinity range: 0.4 ...
Copepods from the genus Mesocyclops are considered predators and potential biological control for mosquito larvae. Two copepod species M. meridianus and M. longisetus were found in natural developmental habitat for malaria vector Anopheles aquasalis in Paria, Venezuela. Predatory potential on 1st-stage mosquito larvae An. aquasalis was evaluated under ...
Understanding the processes that control species abundance and distribution is a major challenge in ecology, yet for a large number of potentially important organisms, we know little about the biotic and abiotic factors that influence population size. One group of aquatic organisms that defies traditional demographic analyses is the Crustacea, particularly those with complex life cycles. We used ...
The spatial and temporal variations in the abundance of major classes of zooplankton were measured using standard methods, between June and October 1978, at two OTEC sites in the Gulf of Mexico and in the Caribbean near Puerto Rico. The usual oceanic patterns were found with highest numbers near the surface, especially at night, and lowest numbers at 800 to 1000 m. Absolute numbers varied ...
A new genus and species of cyclopoid copepod belonging to the family Enterognathidae, Parenterognathus troglodytes, is described from a gall on the calyx of the deep-sea crinoid Glyptometra crassa (Clark, 1912) collected at depths of 775-787 m off Kumano-nada, middle Japan. The new genus can be distinguished from the three known genera of the family by ...
Understanding the impact of climate change on zooplankton populations is of major importance, as they represent the basis for higher trophic levels in the marine food web. In this study we analyze the 36-year copepod abundance time series in the Gulf of Trieste, northern Adriatic, to investigate its interannual variability, with particular attention to species trends and ...
In August 1982, a net of 48 stations with altogether 208 samples was investigated in the eastern German Bight with respect to temperature, salinity, as well as the amount and species composition of the mesozooplankton (>80 ?m). The data were arranged into different structures by means of a cluster analysis. Four different clusters were found: (a) a �Wadden sea water� with few holoplankton ...
Copepods swim either continuously by vibrating their feeding appendages or erratically by repeatedly beating their swimming legs, resulting in a series of small jumps. The two swimming modes generate different hydrodynamic disturbances and therefore expose the swimmers differently to rheotactic predators. We developed an impulsive stresslet model to quantify the jump-imposed ...
1. Flow-chamber experiments were conducted to evaluate the ability of microcrustacea to maintain position in moving water. These results were compared to distributions of zooplankton and water velocity in a stream pool to determine the relationship of animal density to water movement and swimming ability.^2. Cladocerans exhibited negative rheotaxis (directed behaviour against a current) but poor ...
USGS Publications Warehouse
Zooplankton in temporary ponds is often collected with gear originally designed for lakes, and mostly unsuitable for sampling shallow habitats. We describe a new simple and inexpensive device for sampling zooplankton in very shallow, vegetated temporary ponds. We tested the sampling efficiency by comparing species composition and density of cyclopoid ...
The cyclopoid copepod Macrocyclops albidus (Jurine) was tested as a potential biological control agent of mosquitoes in laboratory microcosms, in controlled field conditions, and in a 22-mo field experiment using discarded tires. The predator was highly efficient in controlling mosquitoes in all three settings, reaching close to 90% reduction in larval ...
Previously undescribed motile cystophorous cercariae which develop in sporocyst-like germinal sacs in the bullomorph opisthobranch Philine aperta are experimentally shown to develop into Lecithocladium excisum (Digenea, Hemiuridae), a common stomach parasite of mackerel Scomber scombrus in the north-east Atlantic and adjacent seas. Between 3 and 8% of P. aperta from the northern Oresund, Denmark, ...
Marine dinoflagellates of the genus Alexandrium are the proximal source of neurotoxins associated with Paralytic Shellfish Poisoning. The production of these toxins, the toxin biosynthesis and, thus, the cellular toxicity can be influenced by abiotic and biotic factors. There is, however, a lack of substantial evidence concerning the toxins' ecological function such as grazing defense. Waterborne ...
PubMed Central
The overall goal of the this three year project is to determine the importance of phytoplankton (microscopic algae) as a component of the food chain base in SRS cardine bays. To summarize specific year three results: Total phytoplankton abundance in Flamingo bay was greatest during early spring 1989, declined during spring and summer, but increased again during early fall. Most of this ...
The importance of zooplankton in the diet of yellow perch (Perca flavescens), white perch (Morone americana), walleyes (Stizostedion vitreum vitreum), and white bass (M. chrysops) was assessed in the central basin of Lake Erie in 1985-1988. Zooplankton were collected by vertical hauls in 1987-1988 and fish with a rock-hopper trawl. Although copepods (calanoid and ...
Four planktonic species of Difflugia co-occurring in a south Chinese reservoir were found to be carnivorous, but the diet was widest in the largest species (D. tuberspinifera) and narrowest in the smallest (D. hydrostatica). It included rotifers, ciliates, dinoflagellates, floating eggs, and small particles associated with organic debris. Scavenging and cannibalism were also observed. Species with ...
Induction of vitellogenin (Vg) has been used as a biomarker of exposure to heavy metals and endocrine-disruption chemicals (EDCs) in aquatic organisms. Here, we identified the full-length Vg1 and Vg2 sequence from the brackish water copepod, Paracyclopina nana. Vg1 gene contained 5718bp of the open reading frame (ORF) that encoded the putative protein of 1905 amino acids ...
BackgroundGnathostoma spinigerum larva is pathogenic, causing gnathostomiasis in humans and certain animals, and is prevalent mainly in Asia. Growth and development of Gnathostoma spinigerum larvae in the cyclopoid copepod Mesocyclops aspericornis, the first intermediate host, were examined.ResultsWhen newly hatched, ensheathed second-stage larvae (L2) ...
The use of the cyclopoid copepods Macrocyclops distinctus (Richard) Megacyclops viridis (Jurine) and Mesocyclops pehpeiensis Hu (Cyclopoida: Cyclopidae) as biological control agents against the dengue vector Aedes albopictus (Skuse) (Diptera: Culicidae) was evaluated. In the laboratory their predatory ability was highest against the younger instars of Ae. ...
Plankton samples and oceanographic data were obtained during transect studies across fishing banks over the Southwest Greenland shelf in June 1999, May, and July 2000. The study gives a detailed description of micro- and mesozooplankton distributions and community structures during spring bloom and post bloom periods. Plankton distributions were related to the physical environment described by a ...
The Japan/East Sea (JES) may be thought of as a model or microcosm of larger oceanic systems where biogeographic boundaries juxtapose at highly dynamic boundaries. The northern and southern portions of the JES are hydrographically and biologically distinct, with the southern portion being more tropical/oligotrophic and the northern portion being more boreal/eutrophic. Regional zooplankton ...
The zooplankton populations in southeastern Lake Michigan underwent striking, size-related changes between 1954 and 1966. Forms that decline sharply were the largest cladocerans (Leptodora kindtii, Daphnia galeata, and D. retrocurva), the largest calanoid copepods (Limnocalanus macrurus, Epischura lacustris, and Diaptomus sicilis), and the largest ...
Samples of crustacean zooplankton were collected monthly in west-central Lake Erie in April and June to October 1968, and in July and August 1970, before and during periods of hypolimnetic dissolved oxygen (DO) depletion. The water column at offshore stations was thermally stratified from June through September 1968, and the hypolimnion contained no DO in mid-August of 1968 or 1970. Composition, ...
Plankton samples collected in November 2002, February, May and August 2003 were used to examine seasonal variation in tidal exchange of zooplankton biomass, abundance and species composition between Lough Hyne Marine Nature Reserve and the adjacent Atlantic coast. Micro- to mesozooplankton were collected by pump over 24-h sampling periods during spring and neap tides from the narrow channel ...
2350 : Zooplankton. Copepod with eggs. 2351 : Zooplankton. Copepod with eggs. 2352 : Zooplankton. Copepod with eggs. 2353 : Zooplankton. Copepod with eggs.
NOAA Photo Library
Copepod with eggs. 2334 : Zooplankton. Copepod with eggs. 2335 : Zooplankton. Copepod with eggs. 2336 : Zooplankton. Copepod with eggs. 2337 : Zooplankton.
Clearance rates of {sup 32}P-labeled yeast cell tracer particles and gravimetric seston analysis were used to estimate in situ seston ingestion rates of Daphnia parvula and Bosmina along the seston gradient in Tuttle Creek Reservoir, near Manhattan, Kansas. An ingestion rate depression occurred for both species at the highest seston concentration. The smallest animals, Bosmina, had a lower ...
In an experiment to determine the impact of angler baits, cereal or maggots were added to areas of sediment in a eutrophic reservoir at realistic rates, over a 12-week period. The densities of benthic invertebrate taxa were estimated before treatment, immediately after treatment, and, finally, after a 4-month recovery period. All taxa except the tubificid Limnodrilus hoffmeisteri were reduced in ...
The taxonomy and ecology of the cyclopoid copepod genus Thermocyclops were studied. Samples were collected in 207 water bodies located in the 22 hydrographic basins of S�o Paulo State, Brazil, including large reservoirs, small and shallow lakes, and ponds and rivers. The genus Thermocyclops inhabits mainly water bodies within a limnetic region. Four ...
The planktonic and epibenthic crustacean fauna from two sites of the brackish Schlei fjord, Northern Germany, was investigated over a six-month period. Calanoid and cyclopoid copepods were more abundant in lower salinities, whereas, benthic decapods, isopods and amphipods prevailed in the site of higher salinity. Cestodan larvae were found only in spring ...
The food preferences of larval lake herring (Coregonus artedi) and bloater (C.hoyi) were compared in a small mesotrophic lake in southeastern Michigan. Diets of the two were increasingly similar as the experiment progressed until, by the end of 6.5 weeks, they were identical; Schoener's Index of diet overlap averaged 0.35 in the first week and reached 0.96 by the end of the study. In the first ...
The ecology of senescence in marine zooplankton is not well known. Here we demonstrate senescence effects in the marine copepod Oithona davisae and show how sex and sexual selection accelerate the rate of ageing in the males. We show that adult mortality increases and male mating capacity and female fertility decrease with age and that the deterioration in ...
The response of the mesozooplankton community was examined during the development and early decline of the Subarctic Ecosystem Response to Iron Enrichment Study diatom bloom in July 2002. No significant changes in species composition were observed during this period. In terms of abundance, the community was dominated by small copepods (Oithona spp. and ...
Zooplankton species distribution and abundance data at 17 locations in the inshore (10-30 m), shelf (50-200 m) and oceanic (2,500-2,800 m) regions off northeast India (Bay of Bengal) during January 1999-April 2001 revealed 112 taxa represented by 30 divergent groups. Copepods (58 species) dominated (87%) the population numerically. In general zooplankton diversity (Margalef ...
Non-consumptive effects (NCEs) of predators owing to induced changes in prey traits are predicted to influence the structure of ecological communities. However, evidence of the importance of NCEs is limited primarily to simple systems (e.g. two to four species) over relatively short periods (e.g. less than one generation). We examined the NCEs of a fish predator, arising from phenotypic plasticity ...
The influence of relative isolation on the ecological recovery of freshwater outdoor mesocosm communities after an acute toxic stress was assessed in a 14-month-long study. A single concentration of deltamethrin was applied to 8 out of 16 outdoor 9-m3 mesocosms to create a rapid decrease of the abundance of arthropods. To discriminate between external and internal recovery mechanisms, four treated ...
In contrast with the marine reaches of estuaries, few studies have dealt with zooplankton grazing on phytoplankton in the upper estuarine reaches, where freshwater zooplankton species tend to dominate the zooplankton community. In spring and early summer 2003, grazing by micro- and mesozooplankton on phytoplankton was investigated at three sites in the upper Schelde estuary. Grazing by ...
Association of luminescence with phenotypic and genotypic traits and with environmental parameters was determined for 278 strains of Vibrio cholerae isolated from the Chesapeake Bay during 1998 to 2000. Three clusters of luminescent strains (A, B, and C) and two nonluminescent clusters (X and Y) were identified among 180 clonal types. V. cholerae O1 strains isolated during pandemics and endemic ...
Parasitic crustaceans serve as both hosts and vectors of viruses as well as of parasites and other microbial pathogenic agents. Few of the presumably numerous associations are known, but many can be anticipated. Recently, branchiurans and gnathiid isopods have been documented to host helminths and blood parasites. Because the agents can be observed readily with a microscope, these are better ...
An analysis of mesozooplankton community structure in the Scotia Sea was carried out, based on 123 RMT1 double oblique hauls (0 200 m) taken during the CCAMLR 2000 Survey. Standardized sample data (log abundance per 1000 m3) were grouped into taxonomic categories and subjected to cluster analysis and multi-dimensional scaling. Two ordinations were performed, the first based on a reduced taxonomic ...
its small size, its ecology is not well known and its role in ... BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAMICS ...
AZTI fisheries and food technology institute. Fisheries department. Herrera Kaia portualdea, z/g. City: Pasaia Postal Code: 20110. Country: SPAIN ...
Seabirds Phalacrocorax carbo, Phalacrocorax auritus, Larus delwarensis, L. argentatus, L. marinus, Sterna finmarchicus, C. hyperboreus and Oithona similis), tunicates
... is unlimited. Physical and Biological Controls of Copepod Aggregation and Baleen Whale Distribution Mark Baumgartner ...
DTIC Science & Technology
... Calanoid Copepods of the family Aetideidae in the World Ocean. Aetideidae occur in all vertical ranges of ... ...
The Fram Strait is very important with regard to heat and mass exchange in the Arctic Ocean, and the large quantities of heat carried north by the West Spitsbergen Current (WSC) influence the climate in the Arctic region as a whole. A large volume of water and ice is transported through Fram Strait, with net water transport of 1.7 3.2 Sv southward in the East Greenland Current and a volume ice ...
The relationship of fish age class to parasitism by Paulisentis missouriensis was determined by sampling at least 29 creek chubs, Semotilus atromaculatus, from Easly Creek, Richardson County, Nebraska, every month from February 1996 to March 1997. In general, mean abundance and prevalence of the acanthocephalans increased with the age or length of chubs. It is unlikely that this distribution is ...
Irgarol is a highly effective biocide used in antifouling coatings to prevent the growth of periphyton. Environmental concentrations of Irgarol in marine and freshwater have often exceeded the effect concentrations of autotrophic organisms tested in the laboratory and give reason for concern that natural periphyton communities may be endangered. A 150 days freshwater mesocosm study in 8 indoor ...
Direct and indirect effects of the fungicide carbendazim on ecosystem structure and functioning were studied < or =8 weeks after application (nominal concentrations: 0, 3.3, 33, 100, and 1000 microg/L) to outdoor microcosms in Thailand. Direct effects on macroinvertebrates are discussed in detail in a separate article. The present article presents the effects on other end points and discusses ...
The egg and larval stages of Gnathostoma turgidum were examined using light microscopy. Fertilized uterine eggs are 65.97 long and 32.28 wide, oval, brownish, with two cap-like thickenings. The eggshell surface is covered with numerous irregularly shaped pits of various sizes and depths. A sheathed second-stage larva emerges from the egg, measures 178 x 9; the sheath measures 243 x 21. Development ...
Eleven freshwater species were exposed to a zoosporeproducing fungus, Lagenidium giganteum, with the goal of determining species sensitivity with standard and new test procedures. The tests included standard, 4-day acute exposures of cladocerans (Ceriodaphnia dubia, Daphnia pulex, and D. magna) and the fathead minnow (Pimephales promelas). Standard 7-day chronic exposures of C. dubia and a 7-day ...
A new species of the cyclopoid copepod genus Ergasilus von Nordmann, 1832 is described based on adult female specimens removed from the gills of the yellow snapper Lutjanus argentiventris (Peters) and the yellowfin snook Centropomus robalito Jordan et Gilbert from a Pacific coastal system of Mexico. The new species Ergasilus davidi sp. n. has a combination ...
This study was an investigation of the effects of the herbicide atrazine and the insecticide bifenthrin on lake communities. The study was conducted in two phases: in phase one, we examined the effects of environmentally realistic levels of atrazine and bifenthrin, based on published data of concentrations measured in fresh waters; in phase two, the impacts of higher levels of atrazine and ...
... 4. TITLE AND SUBTITLE The Taxonomy of the Harpacticoid Copepods of the Northen Gulf of Mexico: A Taxon of Potential Importance to the Navy ...
... Title : Physical and Biological Controls of Copepod Aggregation and Baleen Whale Distribution. Descriptive Note : Annual rept. ...
... Title : Numerical Abundance of Dominant Copepods from the Northeast Pacific Ocean: Columbia River Effluent Area 1963. ...
Detailed analyses of sections for remains of invertebrates - including tintinnids, forams, copepod eggs, copepod spermatophores, rotifer loricae, ...
... environmental factors, such as the random nature of passive transport of copepods into suitable microhabitats, affected our results, ... ...
The estuarine copepod Acartia tonsa naturally carried diverse strains of bacteria on its body. The bacterial community composition (BCC) remained very conservative even when the copepod was fed different axenic algal species, indicating that the food per se did not much affect BCC associated with the copepod. In xenic algal treatments, ...
We tested and refined the Neutral Red staining method for separating live and dead copepods in natural samples. Live copepods were stained red whereas dead copepods remained unstained. The staining results were not affected by method of killing, time of death or staining time. Tow duration had no significant effect on the percent dead ...
Water quality in the Shark River estuary was strongly influenced by seasonal patterns of rainfall, water level and temperature. During the rainy season (summer and early fall) the salinity in the 20-mile long estuary ranged from that of fresh water to half that of sea water while concentrations of dissolved oxygen were low, 2-5 milligrams per liter (mg/l) presumably because, among other factors, ...
Progress is reported on the following research projects: feeding by adult copepods on natural distributions of particles; selective feeding in juvenile copepods; evidence for mechanisms of selection in spined and unspined algae; predatory feeding by adult copepods on nauplii of copepods; relative abundance of ...
The roles of copepod sensory systems in the recognition of food were investigated using the 'Bugwatcher', a video-computer system designed to track and describe quantitatively the swimming patterns of aquatic organisms. Copepods acclimated, or non-acclimated to a chemosensory sti...
On the Marine Free-Living Copepods off Brazil (OBIS South America, BRAZIL) Entry ID: Free_Living_Copepods_Off_Brazil ...
Host specificity of the copepods parasitic on scrombrid fishes is the basis for an analysis of the host-parasite relationship. A total of 46 different species of parasitic copepods were collected from 47 species of Scombrinae. A revised host-parasite list...
A survey of museum material of the species of needlefishes (Belonidae) found 3,863 copepods of 31 species from 25 species of needlefishes. Twelve species of copepods are described as new. Eight additional species were not named or described in detail beca...
