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: 3223
The effects of methyltestosterone on sex reversal in bluegill
Small impoundments stocked with bluegill often become overcrowded with small, undesirable fish. This problem would be prevented if it were possible to stock only one sex, but sexing of small bluegill is difficult and unreliable. Monosex broods in Oryzias latipes [3], Tilapia mossambica [1], and Carassius auratus [5] can be produced by using sperm from sex-reversed genotypic females to fertilize eg
Authors
L.E. Chew, J.G. Stanley
Snowy owl predation on lapland longspur nestlings recorded on film
During the summer of 1971 I investigated the breeding biology of the Lapland Longspur, Calcarius lapponicus, near Barrow, Alaska. To obtain data on incubation and feeding patterns of nesting longspurs, time-lapse cameras (Minolta Autopak-8 D6 super-8 movie cameras equipped with an Intervalometer-P time-lapse device) were positioned at several nests throughout the nesting season with an exposure i
Authors
T. W. Custer
Field trip guidebook for hydrogeology of the Twin Cities Artesian Basin
No abstract available.
Authors
T. C. Winter, R.F. Norvitch
An approach to the design of statewide or regional ground water information systems
The design of water information or basic data systems must be flexible enough to provide information and data for a broad range of interests from national to local. The system must satisfy the need for information for accounting, surveillance, and areal synthesis purposes. The network is designed by identifying specific needs in terms of maps, analyses, and studies that will provide the basic know
Authors
Thomas C. Winter
Residues of MS-222 in northern pike, muskellunge, and walleye
Abstract not submitted to date
Authors
J. L. Allen, C.W. Luhning, P.A. Harman
Methods of estimating the half-life of biological activity of toxic chemicals in water
Abstract not submitted to date
Authors
L. L. Marking
Chemicals in fish farming: what's cleared, what isn't?
Abstract has not been submitted
Authors
R.E. Lennon
Concentrations of some inorganic constituents in gallbladder bile from some freshwater fishes
No abstract available.
Authors
J. B. Hunn
The effects of exposure to Thanite on the blood chemistry of carp
Abstract has not been submitted
Authors
J. B. Hunn
Exposure times necessary for antimycin and rotenone to eliminate certain freshwater fish
Abstract has not been submitted
Authors
P.A. Gilderhus
Blood chemistry values for some fishes of the upper Mississippi River
Abstract has not been submitted
Authors
J. B. Hunn
Policy statement on the use of toxicant in management of aquatic resources
Abstract has not been submitted
Authors
R.S. Cook, A.M. Beeton, P.M. Cook, P.H. Derse, A. Hasler, R.E. Lennon, P. Sager, W. Selbig