Scientists worry B.C. hatchery fish threatening endangered wild chinook

Conservation groups and scientists are sounding the alarm on the long-term consequences of high-volume hatcheries. Because the genes of fish change rapidly to suit their environment, the biggest concern is fish reared under ideal hatchery conditions will pass on inferior traits. After successive generations, the population could be unfit for the wild.

The Pacific Salmon Foundation (PSF) is undertaking a comprehensive, first-of-its-kind analysis in B.C. on the impacts of hatcheries, and whether they’re meeting their objectives. PSF Science advisor Brian Riddell emphasized the need for limiting hatchery fish to 30 percent of a stock and approaching the unique needs of each wild population individually.

LINK (via: Vancouver Island Free Daily)

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