Unsettling: NOAA Research Says Warming Ocean Poses Risk Of Extinction For Snake River Spring/Summer Chinook By 2060s

NOAA Fisheries is using life-cycle modeling that projects threatened Snake River spring/summer chinook salmon will experience starkly lower survival rates during their years in the ocean in the future compared to now. Unusually warm temperatures—including a 2014-2015 marine heatwave— have depressed salmon returns to many West Coast rivers, including the Snake and Columbia.

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