Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41918
Pathophysiology of infectious hematopoietic necrosis virus disease in rainbow trout (Salmo gairdneri): early changes in blood and aspects of the immune Response after Injection of IHN Virus
Juvenile rainbow trout (Salmo gairdneri) were injected with infectious hematopoietic necrosis (IHN) virus and various hematological and blood chemical changes were monitored over 9 days. The packed cell volume, hemoglobin, red blood cell count, and plasma bicarbonate were significantly depressed by day 4. Plasma chloride, calcium, phosphorus, total protein, and blood cell types did not change duri
Authors
Donald F. Amend, Lynnwood Smith
Effect of Temperature on survival of Aeromonas liquefaciens, Aeromonas salmonicida, Chondrococcus columnaris, and Pseudomonas fluorescens
No abstract available.
Authors
A. J. Ross, Cathy A. Smith
Comparative toxicity of two Iodophors to rainbow trout eggs
Toxicity of Wescodyne(R) and Betadine(R) to eyed eggs was not adversely affected by water hardness (as calcium and magnesium) or by exposure periods up to 60 min. Both iodophors were much more toxic below pH 6.0 than at pH 8.0. In general Wescodyne was slightly more toxic than Betadine. Significant egg loss occurred if freshly fertilized eggs were water-hardened in either iodophor at 100 ppm of io
Authors
Donald F. Amend
Effect of nitrogen supersaturated water on coho and chinook salmon
No abstract available.
Authors
Robert R. Rucker, Paul M. Kangas
The commercial fishery in Lake Oahe, North and South Dakota, 1964-70
Ten species were commercially harvested in Lake Oahe, among which bigmouth buffalo (Ictiobus cyprinellus) predominated (63.8% of the total weight), smallmouth buffalo (Ictiobus bubalus) and goldeye (Hiodon alosoides) ranked second, and third. Variations in the seasonal and annual production of buffalo were governed by market conditions and availability. Production of minor species depended on the
Authors
Joseph H. Higham
Age, growth, and maturity of thirteen species of fish from Lake Oahe during the early years of impoundment, 1963-68
The body-scale relation, calculated length, length-weight relation, age at maturity, and sex ratio of 13 major species collected in Lake Oahe from 1963 to 1968 with trap nets and bottom trawls are described. Eight species grew at a faster rate than has been recorded in other Missouri River reservoirs: goldeye (Hiodon alosoides), bigmouth buffalo (Ictiobus cyprinellus), smallmouth buffalo (Ictiobus
Authors
William R. Nelson
Evaluation of trawls for monitoring and harvesting fish populations in Lake Oahe, South Dakota
Trawls of various designs and sizes were compared to evaluate their use for monitoring and harvesting fish populations in Lake Oahe. Catches of a 10.7-m semiballoon trawl, selected to monitor changes in the fish populations from 1965 to 1970, showed a downward trend in the abundance of all species, except walleye; the decline was largest in the lower area of the reservoir with a slight increase in
Authors
William R. Nelson, Marvin S. Boussu
Limnetic crustacean zooplankton of Lake Oahe, May-October 1969
The limnetic crustacean zooplankton of Lake Oahe was dominated by copepods. Cyclops bicuspidatus thomasi was the dominant crustacean throughout the lake. Mesocyclops edax, Diaptomus ashlandi and Daphnia pulex were major components of the zooplankton in the deep, downstream portion of the lake while Bosmina longirostris and Daphnia retrocurva were important constituents in the river-like, upstream
Authors
James H. Selgeby
Physical and chemical characteristics of Lake Oahe, 1968-69
The physical and chemical characteristics presented provide a description of Lake Oahe and establish bases for certain characteristics which may alter as the reservoir ages. Water temperatures were strongly influenced by wind-driven currents and water depth. The duration of thermal stratification varied from about 3 wk in the upstream portion of the reservoir to about 15 wk near the dam in 1968 an
Authors
James H. Selgeby, William E. Jones
Bibliography of research publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-1972
This bibliography comprises publications in fishery and wildlife research authored or coauthored by research scientists of the Bureau of Sport Fisheries and Wildlife and certain predecessor agencies. Separate lists, arranged alphabetically by author, are given for each of 17 fishery research and 6 wildlife research laboratories, stations, investigations, or centers. Publications coauthored by Bure
Authors
Paul H. Eschmeyer, Van T. Harris
Population ecology of the mallard: III. Bibliography of published research and management findings
No abstract available.
Authors
David R. Anderson, Patricia Ann Skaptason, Kathleen C. Fahey, Charles J. Henny