Following the states 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. 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 their destination safely has precedent as far back as 1991.
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