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Lack of Rainbow Trout Movement in a Small Stream
Author(s) -
Cargill Austen S.
Publication year - 1980
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(1980)109<484:lortmi>2.0.co;2
Subject(s) - rainbow trout , salmo , fishery , movement (music) , fish <actinopterygii> , trout , sampling (signal processing) , biology , geography , zoology , art , filter (signal processing) , computer science , computer vision , aesthetics
Wild rainbow trout (Salmo gairdneri) were marked and released (N = 470) in Valley Creek, a small stream in east‐central Minnesota. Subsequent sampling indicated no significant upstream or downstream movement over 2.5 years. A regression analysis of the transformed and weighted ratios of marked‐to‐total fish captured against time was used to determine if significant movement occurred. The lack of movement may be a feature of a genetically distinct nonmigratory race, individuals of which may occupy home territories throughout their lifetime.