Long-term temporal changes of genetic composition in brown trout (Salmo trutta L.) populations inhabiting an unstable environment.

Abstract excerpt

The genetic structure of brown trout (Salmo trutta) populations inhabiting rivers on the island of Bornholm in the Baltic Sea was studied on a spatial and temporal scale. Low water levels in the rivers during the summer period are assumed to have a significant impact on the persistence of local populations, possibly resulting in a metapopulation structure. Extinctions may, however, also be buffered by a remnant...

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