| Issue |
Annls Limnol.
Volume 23, Number 3, 1987
|
|
|---|---|---|
| Page(s) | 253 - 261 | |
| DOI | https://doi.org/10.1051/limn/1987023 | |
| Published online | 15 August 2009 | |
Mise en évidence des différences de croissance entre individus sauvages et introduits chez la truite Salmo trutta fario
Differences in growth pattern between indigeneous and introduced populations of Salmo trutta fario
Laboratoire d'Ichtyologie appliquée. E.N.S. Agronomique, 145 Avenue de Muret, 31076 Toulouse Cédex, France
A la faveur d'une étude des populations de truites (S. trutta fario) dans le Sud du Massif Central (France), des différences de croissance entre sujets sauvages et poissons introduits de pisciculture ont été mises en évidence par la méthode de Kimura (1980). La croissance est plus rapide chez les poissons de pisciculture. L'influence possible du comportement alimentaire est discutée.
Abstract
Within a study on S. trutta fario populations in the south of the Massif Central (France) it was possible to indicate differences in growth pattern between local populations and stocked fishes by using the method of Kimura (1980). Growth is faster for introduced fishes. The influence of a possible difference in feeding behaviour is discussed.
Mots clés : S. trutta fario / écologie / eaux courantes / croissance
Key words: S. trutta fario / ecology / rivers / growth
© Masson, 1987
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