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UBC research helps migrating salmon survive mortality hot-spot - EurekAlert
<p>When Kevin Ryan and the other hardworking volunteers at Mossom Creek Hatchery in Port Moody, B.C. release young coho smolts into the ocean, they’re never quite certain how many will return as adults. Mossom releases between 5,000 and 10,000 coho smolts each year, and is one of the few hatcheries to release coho directly into the ocean, rather than into a river. Until now, no research had looked at the success of direct ocean releases of coho.</p> <p>UBC researchers used acoustic telemetry to tag and track coho on their journey. The results were revealing: only 60 per cent of the fish remained alive three kilometres from release. Fewer than one-quarter reached the Lions Gate Bridge 20 kilometres away.</p>
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