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The Otter Trawl as a Fish Sampling Device in Western Lake Erie
Author(s) -
Kinney Edward C.
Publication year - 1957
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(1956)86[58:totaaf]2.0.co;2
Subject(s) - otter , fishery , fish <actinopterygii> , geography , population , environmental science , sampling (signal processing) , spring (device) , biology , demography , engineering , mechanical engineering , filter (signal processing) , sociology , electrical engineering
Periodic fish collections were made in western Lake Erie with a thirty‐foot otter trawl from 1948 through 1953. Prior to 1952, the number of silver chubs, Hybopsis storeriana, per collection were recorded for some of the trips. Biweekly trawls, usually consisting of four one‐acre hauls, were made during 1952 and 1953. Records of the numbers of silver chubs per haul were kept. When hauls made during the spring migration period were excluded, a mean of 18.2 adults per haul was obtained with a standard deviation of 4.7. The results were sufficiently consistent to be used as a basis for further population comparisons.