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Publication Extents

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Proposed water-supply investigations in Sidamo Province, Ethiopia
David A. Phoenix
1966, Open-File Report 74-1085
The present report describes the results of an air and ground hydrologic reconnaissance of some 32,000 square kilometers in Sidamo Province of southern Ethiopia. Existing (1966) water resources developments, chiefly for livestock and village supplies, include surface reservoirs, a few drilled wells, several clusters of dug wells in the Mega...
Treatment of East Bay, Alger County, Michigan, with toxaphene for control of sea lampreys
William E. Gaylord, Bernard R. Smith
1966, Investigations in Fish Control 7
An experiment was conducted to determine whether toxaphene can be used to eradicate lake-dwelling sea lampreys and to determine its effect on fish populations. In East Bay, a 78-acre lake on the Sucker River, Alger County, Mich., an estimated concentration of 100 parts per billion was maintained for 14 days....
Evaluation of p,p'-DDT as a reference toxicant in bioassays
Leif L. Marking
1966, Investigations in Fish Control 10
p,p'-DDT was tested as a reference standard toxicant against 19 species of freshwater fish, including 39 lots from 10 sources. In particular, the rapidity, nonselectivity, and consistency of its toxicity to fish were evaluated in 96-hour static bioassays. The chemical was rapidly and consistently toxic to lake trout, carp, green...