Californian salmon hitch a ride on tanker trucks to escape drought

Salmon are famous for their epic migrations to and from the ocean, but their natural rhythm has been disrupted by recent drought conditions in California. Following the state’s driest year since records began, Californian authorities have found it necessary to actually transport smolt (juvenile salmon) on trucks to the delta of the Sacramento River. That’s instead of releasing them from the hatcheries directly into the river where the adolescent fish would make the trip themselves.

As Bob Clarke of the US Fish and Wildlife Service explains, the lack of rain has made the journey to the ocean perilous for the salmon, with the river liable to be “too low, too slow and too clear.” The present effort to get the young Chinook salmon to…

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