Scientists want to breed fish to be better biters

April 25, 2014 2:23 PM

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Scientists want to breed fish to be better biters

In a lifetime of fishing for winter steelhead on Oregon's Alsea River, Stan Steele has seen it get harder and harder to hook into hatchery-bred fish. Instead, he has found he is more likely to hook the wild variety, whose numbers have declined.

A growing body of evidence is showing that Steele's experience is not some fish story, but the result of natural selection. Wild fish, which generally must be released unharmed, retain the aggression that will land them on the end of a hook better than hatchery fish.

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