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Book Chapters

Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 6197

The study of relatedness and genetic diversity in cranes The study of relatedness and genetic diversity in cranes

The U.S. Fish and Wildlife Service (Service) is responsible for recovery of endangered species in the wild and, when necessary, maintenance in captivity. These programs provide an immediate measure of insurance against extinction. A prerequisite inherent in all of these programs is the preservation of enough genetic diversity to maintain a viable population and to maintain the capacity...
Authors
G.F. Gee, H.C. Dessauer, J. Longmire, W.E. Briles, R.C. Simon

Water quality changes and their relation to fishery resources in the upper Mississippi River Water quality changes and their relation to fishery resources in the upper Mississippi River

Despite a long history of human manipulation, the most dramatic changes in the upper Mississippi River occurred in the 1930s with construction of a lock and dam system to facilitate the commercial transport of commodities. In 1988, barge traffic through the system ranged from 7,500 tows per year at Lock and Dam 26 (near Alton, Illinois) to 1, 118 at Lock and Dam 1 (in Minneapolis/St...
Authors
L. E. Holland Bartels
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