Sea lions take big bite out of early salmon runs

Early runs of wild spring Chinook salmon returning to the Columbia River are bearing the brunt of sea lion attacks, a new study suggests. The fish arrive in early spring before sea lions have left for summer breeding grounds and when the pinniped population is especially high at the river’s mouth. These salmon see higher mortality rates compared to later runs and the numbers have started to climb even over prior years, corresponding with a growing number of sea lions recorded near Astoria. >click to read< 08:56

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