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Thursday, October 28, 2010

Photo: Lice From Fish Farms Killing Wild Salmon


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Sea lice infest a juvenile pink salmon.

A new study of Canadian, ocean-based salmon farms shows that sea lice from the farms swarm the waters around them, forcing young wild fish to swim through clouds of the lice on their way out to sea. Lacking scales, young salmon are especially vulnerable to the parasites.

Photograph courtesy PNAS