Page 1. AD-A251 114 DISTRIBUTION AND ABUNDANCE OF FISH ABOVE HARTWELL DAM ... 4 Results and Discussion Vertical Distribution of Fish ...

The author has identified the following significant results. The distribution and abundance of white

This report presents the results of transect studies conducted from 1981--1986 to determine the distribution and abundance of desert tortoises (Gopherus agassizii) on the Nevada Test Site (NTS) and summarizes the current understanding of the distribution ...

The report presents information synthesized on the spatial and temporal distribution, relative abundance, and life history characteristics of 40 fish and invertebrate species in 9 estuaries along the Texas coast. Its purpose is to disseminate the results ...

This report presents the results of the 2006 International Census of Piping Plovers (Charadrius melodus). Two sets of tabular data are reported: one for distribution and abundance of wintering Piping Plovers, the other for distribution and abundance of br...

Lepidopterists have long acknowledged that many uncommon butterfly species can be extremely abundant in suitable locations. If this is generally true, it contradicts the general macroecological pattern of the positive interspecific relationship between abundance and distribution, i.e. locally abundant species are ...

The 3-year study intended to develop a program for monitoring the abundance of ringed seals in Alaska through aerial surveys. The report presents the results of aerial surveys of ringed seals on the shorefast ice of the eastern Chukchi Sea and Beaufort Se...

Recent spectroscopic results on stellar and solar abundances are reviewed with special reference to (a) standard abundance distribution (Sun, hot stars, diffuse nebulae); (b) abundance peculiarities related to stellar evolution (red giants showing results of H-burning ...

This document is the published result, conclusion, or progress report of research performed by the staff of the U.S. Geological Survey, Fort Collins Science ... ...

It will determine hydrogen abundance and location to within 50 parts-per-million . From this, Prospector's scientists can map the distribution of hydrogen ...

This is a data report presenting the species and abundance of phytoplankton in the 5 lakes sampled by the National Eutrophication Survey in the state of Mississippi. Results from the calculation of several water quality indices are also included....

The Minerals Management Service (MMS) announces the availability of a ... scientific results from the program. This study investigated the seasonal ... ...

The evolutionary origin of general statistics in a biochemical reaction network is studied here to explain the power-law distribution of reaction links and the power-law distribution of chemical abundance. Using cell models with catalytic reaction networks, we have confirmed that the power-law distribution for the ...

Virioplankton dynamics at seven sample sites (from two freshwater lakes) with different trophic states were monitored over the period of a year. Water was sampled monthly from August 2004 to July 2005, and the abundances of viruses and bacteria were measured using direct epifluorescence microscopy counting. Results indicated that both natural and ...

Abundance distributions are a central characteristic of ecosystems. Certain distributions have been derived from theoretical models of community organization, and therefore the fit of data to these distributions has been proposed as a test of these theories. However, it is shown here that the geometric sequence ...

A statistical modeling framework is described for estimating the abundances of spatially distinct subpopulations of animals surveyed using removal sampling. To illustrate this framework, hierarchical models are developed using the Poisson and negative-binomial distributions to model variation in abundance among subpopulations and using ...

Results of a recent survey of the 3 species of Anopheles mosquitoes, Anopheles (Nyssorhynchus) aquasalis, Anopheles (Nyssorhynchus) argyritarsis, and Anopheles (Anopheles) pseudopunctipennis, on the island of Grenada are contrasted with the only other published survey of these species on Grenada, which was published in 1938. Results suggest that a ...

... USGS Fact Sheet July 1999 Measuring Variability in Forage Fish Abundance Introduction The abundance, distribution and h...

We describe an approach for estimating occupancy rate or the proportion of area occupied when heterogeneity in detection probability exists as a result of variation in abundance of the organism under study. The key feature of such problems, which we exploit, is that variation in abundance induces variation in detection probability. ...

Aims. Spectral line emissivities have usually been calculated for a Maxwellian electron distribution. But many theoretical works on both galaxy groups and clusters and the solar corona consider modified Maxwellian electron distribution functions when fitting observed X-ray spectra. Here we examine the influence of high energy electron populations on ...

Detailed chemical abundance studies of open star clusters in the Milky Way Galaxy provide crucial information about the formation and evolution of our Galaxy and of other disk galaxies in general. Numerous studies have shown that the open cluster metallicity distribution decreases with increasing distance from the center of the Galaxy, in agreement with ...

Language: English ...

Contents: Distribution and abundance of king crab larvae, Paralithodes camtschatica and P. platypus in the southeast Bering Sea; Distribution and abundance of the larvae of tanner crabs in the southeastern Bering Sea; Distribution and abundance of other b...