How does the body-scale model affect back-calculated growth: the example of arctic charr Salvelinus alpinus (L.) of Lake Geneva (Switzerland)
Data(s) |
1990
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Resumo |
When back-calculating fish length from scale measurements, the choice of the body-scale relationship is a fundamental step. Using data from the arctic charrSalvelinus alpinus (L.) of Lake Geneva (Switzerland) we show the need for a curvilinear model, on both statistical and biological grounds. From several 2-parameters models, the log-linear relationship appears to provide the best fit. A 3-parameters, Bertalanffy model did not improve the fit. We show moreover that using the proportional model would lead to important misinterpretations of the data. |
Identificador |
http://serval.unil.ch/?id=serval:BIB_644E75B57C33 isbn:1015-1621 doi:10.1007/BF00877285 isiid:A1990DV69600006 |
Idioma(s) |
en |
Fonte |
Aquatic Sciences, vol. 52, no. 3, pp. 287-295 |
Palavras-Chave | #Salvelinus alpinus; back-calculation; scales reading |
Tipo |
info:eu-repo/semantics/article article |