Coho salmon die in ‘witch’s brew’ of stormwater runoff

Coho salmon face fatal levels of pollution in 40 percent of their range in the Puget Sound Basin, chiefly because of stormwater runoff, says a study published in the journal Ecological Applications. Stormwater-derived pollution ultimately accounts for 10-20 of Coho salmon deaths before spawning. “Every time it rains, a witch’s brew of pollutants from every… » Read More

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