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: 41772
Population estimates and feeding behavior of sea otters
No abstract available at this time
Authors
J. A. Estes
Populations dynamics of the cactus mouse in two communities of mesquite. Presented before Arizona Academy of Sciences
No abstract available at this time
Authors
J. A. Howell
Habitat damage by feral burros in Death Valley
No abstract available at this time
Authors
C. L. Douglas, C. Norment
Qualitative requirements and utilization of nutrients: fishes
No abstract available at this time
Authors
H. G. Ketola
Disease agents: viral and bacterial
No abstract available at this time
Authors
G. L. Bullock, S. F. Snieszko, K. Wolf
Survival of two bacterial fish pathogens (Aeromonas salmonicida and the Enteric Redmouth Bacterium) in ozonated, chlorinated, and untreated waters
Ozone and chlorine inactivation curves were determined in three water types at 20 °C for the destruction of the fish pathogens Aeromonas salmonicida, the etiologic agent of furunculosis, and the enteric redmouth bacterium (ERM). In phosphate-buffered distilled water, 0.01 mg/ℓ ozone inactivated 103 cells/ml of ERM and A. salmonicida in 1/2 and 10 min, respectively. Chlorine at this concentration h
Authors
Gary A. Wedemeyer, Nancy C. Nelson
Genetic differences in growth and survival of juvenile hatchery and wild steelhead trout, Salmo gairdneri
Relative growth and survival of offspring from matings of hatchery and wild Deschutes River (Oregon) summer steelhead trout, Salmo gairdneri, were measured to determine if hatchery fish differ genetically from wild fish in traits that can affect the stock–recruitment relationship of wild populations. Sections of four natural streams and a hatchery pond were each stocked with genetically marked (la
Authors
R.R. Reisenbichler, J.D. McIntyre
You asked for it! Worried about parasites while ponds have ice cover? here are some ideas
No abstract available.
Authors
M. Martin
You asked for it! Your fish farming success for the year can depend upon management in the spring
No abstract available.
Authors
M. Martin
Supplemental dietary methionine prevents cataracts in lake trout fed isolated soybean protein
No abstract available at this time.
Authors
H. A. Poston, R.C. Riis, G. L. Rumsey, H. G. Ketola
Chemical composition of blood and bile of the shovelnose sturgeon
Samples of gallbladder bile and blood from shovelnose sturgeons (Scaphirhynchus platorynchus) collected from the Chippewa River, Wisconsin, contained concentrations of Na+, K+, Ca++, Mg++, Cl-, inorganic phosphate, and total cholesterol closely comparable with those reported for similar samples from other species of freshwater sturgeons.
Authors
J. B. Hunn, L.M. Christenson