THE ANIMAL SPECIES INTRODUCED INTO THE CO RSICAN FRESH-WATERS

Seventeen new animal species, among which fifteen fish species, were i ntroduced into the island within less than one hundred years. These sp ecies adapted to various aquatic environments, thus greatly contributi ng to the biodiversity of the fauna of the island, and especially to t he fish populations in natural and artificial lakes. We found that the introduction of the new fish species also propagated an Anguillicola disease in eels. Furthermore, recent studies on wild brown trout popul ations revealed a genetic impact of the introductions.