WSU team unlocks biological process behind coho die-offs

Stephanie Blair, a PhD student at WSU's Puyallup Research & Extension Center, works in the lab on a study examining the causes of coho salmon die-offs in Puget Sound area streams. (Photo by Jason Berg, Washington Stormwater Center)

PUYALLUP, WA – For years, scientists at Washington State University’s Puyallup Research & Extension Center have been working to untangle a mystery: Why do coho salmon in Puget Sound creeks seem to suffocate after rainstorms — rising