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Proposed Standard‐Weight Equations for Brook Trout
Author(s) -
Hyatt Matthew W.,
Hubert Wayne A.
Publication year - 2001
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8675(2001)021<0253:pswefb>2.0.co;2
Subject(s) - salvelinus , fontinalis , trout , percentile , range (aeronautics) , fish <actinopterygii> , statistics , mathematics , linear regression , fishery , zoology , biology , materials science , composite material
Weight and length data were obtained for 113 populations of brook trout Salvelinus fontinalis across the species' geographic range in North America to estimate a standard‐weight ( W s ) equation for this species. Estimation was done by applying the regression‐line‐percentile technique to fish of 120–620 mm total length (TL). The proposed metric‐unit (g and mm) equation is log 10 W s = −5.186 + 3.103 log 10 TL; the English‐unit (lb and in) equivalent is log 10 W s = −3.483 + 3.103 log 10 TL. No systematic length bias was evident in the relative‐weight values calculated from these equations.