California’s Central Valley chinook are getting lost on their way home
Across California’s Central Valley, more and more salmon are getting lost as they migrate back to their spawning grounds. The culprit is a conservation tactic meant to help save them — and it all starts at the hatcheries. … In California’s Central Valley, one tactic has drawn particular attention: packing young salmon into trucks and physically hauling them downstream. … In a 2019 study published in the journal Fisheries, researchers found that the farther salmon were trucked from their birthplace, the more likely they were to wander into a different river when they came back.
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