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Selective Poisoning of Fish
Author(s) -
Greenbank John
Publication year - 1941
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1940)70[80:spof]2.0.co;2
Subject(s) - trout , fishery , perch , bass (fish) , biology , fish <actinopterygii> , fish kill , population , habitat , ecology , nutrient , algal bloom , demography , phytoplankton , sociology
When derris root was applied to the warmer surface waters of two small trout lakes, comparatively little seemed to penetrate to the colder, deeper water. Apparently the perch, rock bass, and largemouth black bass were destroyed, with very slight damage to the trout population. The study of the poisoned fish yielded information on fish populations and on habitat selection. The method of selective poisoning is suggested as a means of ridding certain trout waters of undesirable species of fish.