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Fish Factor: Warm waters across Alaska cause salmon die-offs last summer

 

January 16, 2020

Alaskans saw salmon die offs last summer across the state when water temperatures soared into the mid-70s to above 80 degrees in some regions. But what about threats to salmon from the accompanying global gorilla - increased acidity?

It’s a shock to learn that while extensive studies for years have been underway by Alaska scientists on impacts to major fish and shellfish stocks, there’s been none done in Alaska for salmon. In fact, only two lab studies have been done on Alaska salmon, both out of state, which showed acidity impairs coho salmon’s sense of smell and slows pink salmon g...



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