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An Electrical Method of Collecting Fish
Author(s) -
Haskell David C.
Publication year - 1940
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(1939)69[210:aemocf]2.0.co;2
Subject(s) - fish <actinopterygii> , electrical shock , fishery , environmental science , brush , streams , dorsum , biology , computer science , materials science , anatomy , engineering , computer network , electrical engineering , composite material
An electrical method of collecting fish has been developed which appears to be successful in streams up to 20 feet in width, and depths not greater than can be waded. Fish stunned, and then collected with a scap net, recover when placed in fresh water, so that almost none die as a result of the shock. The method has been tested in hard and soft water and under a variety of stream conditions. Fish may be removed from areas where brush, boulders and other obstructions prohibit seining. Because the fish turn with the light‐colored ventral side up when stunned they become more visible than when only the dorsal surface is exposed to the view. The method is effective for fish large enough to be seen easily when stunned, that is, fish 3 inches or more in length.