The coho couldn’t have seen it coming. As West Vancouver Secondary students and volunteers from West Vancouver Streamkeeper Society surveyed the banks of Brothers Creek below Inglewood Avenue in late October, they found more than 40 carcasses of otherwise healthy looking coho salmon – far too many for so early in the spawning season. It was a tragic turn after what had started to be very promising results in their annual attempt to keep tabs on the local salmon population.
John Barker, past president and volunteer with the stewardship group, walked the creek banks examining the dead coho. Three of the females he inspected still had full egg sacks, indicating they hadn’t had a chance to spawn. “So, this is just devastating,” he said. “In 20 years with the Streamkeepers, I’ve never seen an event like this.” What killed the fish? Barker said the society’s contacts within Fisheries and Oceans Canada told them it was likely a case of urban runoff mortality syndrome, and the culprit was most likely 6PPD-quinon
Coho Salmon West Vancouver Brothers Creek Urban Runoff Mortality Syndrome 6PPD-Quinone
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