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
Thyroid hyperplasia of the eastern brook trout, Salvelinus fontinalis in Romania
No abstract available.
Authors
I. Radulescu, D.C. Vasiliu, E. Ilie, S. F. Snieszko
Turnover and urinary excretion of free and acetylated MS-222 rainbow trout, Salmo gairdneri
Rainbow trout (Salmo gairdneri) anesthetized in 100 mg/liter of M.S. 222 at 12 C excreted the drug in free and acetylated forms via the urine during a 24-hr recovery period in freshwater. Of the M.S. 222 excreted, 77-96% was acetylated. Blood levels of free drug in anesthetized trout approximated 75% of the anesthetic concentration, but the amount of acetylated M.S. 222 was relatively insignifican
Authors
J. B. Hunn, R.A. Schoettger, W. A. Willford
Observations on handling and maintenance of bioassay fish
Abstract has not been submitted
Authors
Joseph B. Hunn, Richard A. Schoettger, Everett W. Whealdon
Identity of Helicops wettsteini (Serpentes: Colubridae)
No abstract available.
Authors
D. Rossmann, N. J. Scott
Antimycin for controlling sunfish populations in ponds
Abstract has not been submitted
Authors
R.M. Burress
Gas chromatographic separation and quantitative estimation of barbiturate mixtures in solid dosage forms
Abstract has not been submitted
Authors
J. L. Allen
Age determination of blue-winged teal
Primary feather length, markings on the greater secondary coverts, and the degree of bill spotting were evaluated as characters for use in the spring to distinguish first-year, blue-winged teal (Anas discors) females from older ones. The length of the 10th primary feather did not prove suitable to separate different aged females. Extreme primary lengths might be used to determine the age of some m
Authors
C.W. Dane