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
Response of a stream channel to an increase in sediment load
No abstract available at this time
Authors
Mary Ann Madej
Studies on vertical and horizontal transmission of duck plague virus in apparently healthy waterfowl
Healthy waterfowl were found to be carriers of duck plague (DP) virus. Black ducks (Anas rubripes) and Canada geese (Branta canadensis) surviving a natural outbreak of DP at Coloma, Wisconsin, in 1973 yielded DP virus in cloacal swabs taken four years postinfection. Experimental infection of previously unexposed mallard ducks (Anas platyrhynochos) with the Coloma strain of DP virus CO-WI (73) also
Authors
Elizabeth C. Burgess
Alternative sources of vitamin C for channel catfish
No abstract available at this time
Authors
T.M. Brandt, C.W. Deyoe, P.A. Seib
Passive hemolytic plaque assay as a means for detecting antibody producing cells in rainbow trout immunized with the O-antigen of enteric redmouth bacteria
No abstract available at this time
Authors
D. P. Anderson
Use of Landsat data to assess waterfowl habitat quality
This report is a discussion of the feasibility of using Landsat data to generate information of value for effective management of migratory waterfowl. Effective management of waterfowl includes regulating waterfowl populations through hunting regulations and habitat management. This report examines the ability to analyze annual production by monitoring the number of breeding and brood ponds that a
Authors
J.E. Colwell, D.S. Gilmer, E.A. Work, D. Rebel
Using wilderness permits to obtain route information
No abstract available at this time
Authors
J. W. van Wagtendonk
Wilderness fire management in Yosemite National Park
No abstract available at this time
Authors
J. W. van Wagtendonk
Problems in the registration of fishery chemicals
Abstract not submitted to date
Authors
F. P. Meyer, R.A. Schnick
The need to set up a national programme for control of fish diseases in the United States
Abstract not submitted to date
Authors
F. P. Meyer
Arsenic in streams, stream sediments, and ground water, Fairbanks area, Alaska
Arsenic concentrations of less than 5 ppb to as large as 1,260 ppb in stream waters and from 5 ppm to 4,000 ppm in stream sediments were found in the Pedro Dome-Cleary Summit area, Alaska. Waters from three of 20 wells sampled had arsenic concentrations exceeding the U.S. Public Health Service recommended limit of 50 ppb. The high arsenic levels are a consequence of arsenic enrichment in the rocks
Authors
Frederic H. Wilson, D. B. Hawkins
Effect of capture stress on plasma enzyme activities in rainbow trout (Salmo gairdneri)
Four capture methods were used to collect domesticated rainbow trout (Salmo gairdneri): angling, electroshocking, seining, and direct netting (control). Blood was sampled rapidly upon capture, usually within 2 min. No significant differences were noted within the time frame of the experiment between the four capture groups for plasma protein concentration, lactate dehydrogenase activity, or leucin
Authors
G.R. Bouck, M. A. Cairns, A. R. Christian
Yersinia ruckeri sp. nov., the redmouth (RM) bacterium
Cultures of the redmouth (RM) bacterium, one of the etiological agents of redmouth disease in rainbow trout (Salmo gairdneri) and certain other fishes, were characterized by means of their biochemical reactions, by deoxyribonucleic acid (DNA) hybridization, and by determination of guanine-plus-cytosine (G+C) ratios in DNA. The DNA relatedness studies confirmed the fact that the RM bacteria are mem
Authors
W.H. Ewing, A. J. Ross, Don J. Brenner, G. R. Fanning