Skip to main content
U.S. flag

An official website of the United States government

Publications

Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Upper Midwest Environmental Sciences Center Publications

Filter Total Items: 3311

Excretion of the lampricide Bayer 73 by rainbow trout Excretion of the lampricide Bayer 73 by rainbow trout

Urinary excretion of the 2-aminoethanol salt of 2′, 5-dichloro-4′-nitrosalicylanilide (Bayer 73) in rainbow trout (Salmo gairdneri) was measured after exposure of the trout to Bayer 73 and also after intraperitoneal (ip) injection of the lampricide. Fish exposed to 0.05 mg/litre of Bayer 73 for 12 h quickly began to excrete residues in the urine. The largest amount of Bayer 73 was...
Authors
J. L. Allen, V. K. Dawson, J. B. Hunn

Red Cedar River basin, Wisconsin: Low-flow characteristics Red Cedar River basin, Wisconsin: Low-flow characteristics

Low-flow characteristics in the Red Cedar River basin, Wis., where surplus water may be diverted, and methods to determine low-flow characteristics at additional sites are presented. The low-flow characteristics were determined by various methods at 71 sites. For the three gaging stations in the basin, frequency analysis was used to determine the low-flow characteristics. At 17 partial...
Authors
W.A. Gebert

Water resources of the St. Louis River watershed, northeastern Minnesota Water resources of the St. Louis River watershed, northeastern Minnesota

The St. Louis River is the largest tributary to Lake Superior in Minnesota. It drains a predominantly forested area of about 3,650 mi2 (Minnesota Department of Conservation, 1959) and discharges into the lake at Duluth. The Mesabi Iron Range, noted for rich deposits of iron ore, parallels much of the northern watershed boundary. Large areas of land were altered by mining activities, as...
Authors
Gerald F. Lindholm, D.W. Ericson, W.L. Broussard, M. F. Hult
Was this page helpful?