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A Third of Freshwater Fish in Europe Under Threat

More than a third of freshwater fish species in Europe face extinction due to overfishing, pollution and dams which have caused rivers to dry up, a scientific study said on Thursday.

The continent's 522 freshwater fish species are under a much higher level of threat than birds or mammals, according to the study "Handbook of European Freshwater Fishes", published in collaboration with the World Conservation Union (IUCN).