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: 41763
Na+, K+-activated-ATPase inhibition in rainbow trout: A site for organochlorine pesticide toxicity?
1. The Na+, K+-activated, Mg2+-dependent-ATPase enzyme system in a heavy microsomal fraction of rainbow trout (Salmo gairdneri) brain was inhibited in vitro by chlorinated hydrocarbon pesticides.2. T50 (concentration at 50 per cent inhibition) values for dicofol, endosulfan and DDT were 5 × 10−6, 3 × 10−5 and 1 × 10−4 M respectively. Similar inhibition by these pesticides occurred in kidney and gi
Authors
Paul W. Davis, Gary A. Wedemeyer
A procedure for testing the antigenicity of vaccines for immunization of fish against Furunculosis
Furnunculosis, a bacterial disease caused by Aeromonas salmonicida, is potentially one of the most devastating diseases in trout and salmon hatcheries. The disease may be controlled by three methods. The most frequently used method of control has been drug therapy. Unfortunately, the bacteria often develop resistance to the specific antibacterial drug. For example, sulfamerazine has been used wide
Authors
Jamieson E. Holway, G.W. Klontz
The stress of Formalin treatments in rainbow trout (Salmo gairdneri) and coho salmon (Oncorhynchus kisutch)
Changes in gill function, acid–base balance and pituitary activation occurring during standard 200 ppm formalin treatments of juvenile rainbow trout (Salmo gairdneri) and coho salmon (Oncorhynchus kisutch) were compared. Plasma Cl−, Ca++, total CO2, and interrenal vitamin C in the trout declined continuously and in proportion to the exposure time, but the salmon were able to maintain these metabol
Authors
Gary Wedemeyer
Some blood chemistry values for the juvenile coho salmon (Oncorhynchus kisutch)
Overlapping Gaussian distribution curves were resolved into normal ranges for 1800 clinical test values obtained from caudal arterial blood or plasma of more than 1000 juvenile coho salmon (Oncorhynchus kisutch) held under defined conditions of diet and temperature. Estimated normal blood chemistry ranges were bicarbonate, 9.5–12.6 mEq/liter; blood urea nitrogen (BUN), 0.9–3.4 mg/100 ml; chloride,
Authors
Gary Wedemeyer, K. Chatterton
Book Review: A symposium on diseases of fishes and shellfishes by S. F. Snieszko
The attractively bound book consists of 42 papers which present a good review of the diseases of fishes and shellfishes of North America.
Authors
G. L. Hoffman
The Canada goose tagging program in Wisconsin
No abstract available.
Authors
G.K. Brakhage, H.M. Reeves, R.A. Hunt
[letter to the editor] Birds and pest control chemicals
No abstract available.
Authors
Ron Porter, Stanley N. Wiemeyer
Reproductive success of Potomac River ospreys--1970
Osprey reproductive success on the Potomac River during 1970 is described. Thirty-five percent of the accessible active nests fledged young and only 0.70 young were fledged per active nest. Egg failure was the major cause of poor success. Reproduction was below that considered normal for a stable population.
Authors
Stanley N. Wiemeyer