Migration de la truite lacustre (Salmo trutta lacustris L.) dans le Léman et ses affluents

A total of 2588 adult migratory brown trout (Salmo trutta lacustris) have been tagged from 1964 to 1974 on their spawning sites, in tributaries of the western part of Lake Geneva (Switzerland). Most of the fish (96.2%) recaptured during spawning seasons in the following years have been found in the same river where they had previously been caught. Most tagged fish recaptured by fishermen were found in the western part of the Lake, near their home rivers. This tendency is very strong in autumn and winter. It still remains highly significant in spring and summer.

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Dédié à Wolfgang Geiger