Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5584
Communications: Blood chemistry of laboratory-reared Golden trout Communications: Blood chemistry of laboratory-reared Golden trout
Golden trout Oncorhynchus aguabonita obtained from a wild stock as fertilized eggs were reared in the laboratory for 21 months. The laboratory-reared golden trout in our study reached sexual maturity earlier and grew more rapidly than wild golden trout do (according to the scientific literature). Male fish averaged 35.6 cm in total length and 426 g in weight, and females averaged 36.2 cm...
Authors
Joseph B. Hunn, Ray H. Wiedmeyer, Ivan E. Greer, Andrew W. Grady
Toxicity of trace element and salinity mixtures to striped bass (Morone saxatilis) and Daphnia magna Toxicity of trace element and salinity mixtures to striped bass (Morone saxatilis) and Daphnia magna
Acute toxicity tests with reconstituted water were conducted to investigate the relationship between water hardness, salinity, and a mixture of trace elements found in irrigation drain waters entering Stillwater Wildlife Management Area (SWMA), near Fallon, Nevada. The SWMA has been the site of many fish kills in recent years, and previous toxicity studies indicated that one drain water...
Authors
F.J. Dwyer, S.A. Burch, C.G. Ingersoll, J. B. Hunn
Organochlorine contamination of sediments, fish, and invertebrates Organochlorine contamination of sediments, fish, and invertebrates
No abstract available.
Authors
C.P. Rice, A. J. Krynitsky, P.F. Roscigno
Floods of 1986 and 1990 in the Raccoon River basin, west-central Iowa Floods of 1986 and 1990 in the Raccoon River basin, west-central Iowa
No abstract available.
Authors
R.W. Baebenroth, B.D. Schaap
Ground-water quality in the Bethpage-Hicksville-Levittown area, Long Island, New York, with emphasis on volatile organic compounds Ground-water quality in the Bethpage-Hicksville-Levittown area, Long Island, New York, with emphasis on volatile organic compounds
No abstract available.
Authors
S. M. Feldman, D. A. Smolensky, John P. Masterson
Methods for analyzing temporal changes in landscape patterns Methods for analyzing temporal changes in landscape patterns
No abstract available
Authors
Christopher P. Dunn, David M. Sharpe, Glenn R. Guntenspergen, F. Stearns, Z. Yang
Managing Louisiana marshes-An experimental approach Managing Louisiana marshes-An experimental approach
No abstract available.
Authors
E.C. Pendleton, A. Lee Foote, Glenn R. Guntenspergen
Landscape simulation of coastal wetlands Landscape simulation of coastal wetlands
No abstract available.
Authors
Thomas W. Doyle
Ecosystem modeling of Barataria Basin, Louisiana utilizing desktop parallel technology Ecosystem modeling of Barataria Basin, Louisiana utilizing desktop parallel technology
No abstract available.
Authors
M. L. White, T. Maxwell, R. Costanza, Thomas W. Doyle
USFWS selected geographic analyses USFWS selected geographic analyses
The geographic information system (GIS) used by the National Wetlands Research Center (NWRC) of the U.S. Fish and Wildlife Service has been valuable in assisting natural resource managers in planning and managing coastal fish and wildlife resources. In the past 5 years, NWRC has conducted about 60 studies employing this technology. Applications have ranged from simple natural resource...
Authors
Floyd O. Stayner, James D. Scurry, James B. Johnston, Mary C. Watzin, Pasquale F. Roscigno
Estimating wintering Bald Eagle densities in the Mississippi Alluvial Valley Estimating wintering Bald Eagle densities in the Mississippi Alluvial Valley
Surveys on the winter distribution of Bald Eagles have been concentrated in the northern USA (Hastings 1988, Mattson 1988), where Bald Eagles are most common. Few density estimates for wintering Bald Eagles exist. In the past, different survey techniques with little standardization have been used. Statistical analyses and error measurements of existing winter survey data usually are not...
Authors
Mike Brown, James R. Nassar
Global climate change: USFWS coastal research Global climate change: USFWS coastal research
Scenarios of global climate change are still ambiguous; however, increasing sea level and atmospheric carbon dioxide (CO2) concentrations seem certain, although rates of change are still being debated. Predictions for other aspects of climate change, such as temperature, tropical storm frequency and intensity, and precipitation, are still in debate, and all predictions for local (e.g...
Authors
Janet R. Keough, Thomas W. Doyle, Robert E. Stewart