NOAA Releases Preliminary 2018 Juvenile Salmonid Survival Estimates Through Columbia/Snake Dams

Yearling chinook salmon from upstream of Lower Granite Dam on the Snake River down through Bonneville Dam on the Columbia River survived at a below average rate this spring if they were from a hatchery and at an above average rate if they were wild, according to a recent preliminary report from NOAA Fisheries on juvenile survival through the hydro system.

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