Tag Archives: mortalities

Barely half of all the sockeye salmon migrating up the Columbia River have survived to reach their spawning grounds

Unseasonably hot water has killed nearly half of the sockeye salmon migrating up the Columbia River through Oregon and Washington state, a wildlife official said on Monday. Only 272,000 out of the more than 507,000 sockeye salmon that have swum between two dams along a stretch of the lower Columbia River have survived the journey, said Oregon Department of Fish and Wildlife fisheries manager John North. “We’ve never had mortalities at this scale,” said North. Read the rest here 15:16