Sustainability Climate Change

California salmon returning to old spawning grounds

Adams River Salmon Run In Kamloops, BC Canada 2010

Story at a glance

  • An endangered species of salmon has been spotted in old spawning grounds.
  • The return was most likely made easier thanks to heavy rainfall in the state last fall followed by snow.
  • Some of the fish have been seen swimming in waters 13 miles inland.

Thanks to heavy rainfall in California last year, the endangered coho salmon have been seen returning to old spawning spots in California they have not visited in decades.  

California got more rain last year between the months of October and December than the previous 12 months, according to WHBL, and a large amount of snow hit the Tomales Bay watershed outside of San Francisco just in time for the fish’s spawning season which begins in November and ends in January.  


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Some salmon have been able to swim to tributaries to the Lagunitas Creek which lays 13 miles from the coast in Marin County, while others have been seen upstream from the San Geronimo Creek. The creek was damned until over a year ago, the outlet reported. 

“We’ve seen fish in places that they haven’t been for almost 25 years,” said Preston Brown, the director of watershed conservation for the Salmon Protection and Watershed Network, told The Guardian.  


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