Research Looks For Reasons Adult Salmon Survival Bonneville To McNary Falling Below BiOP Standards

Results from the first year of a two-year study that is attempting to discover why some adult salmon that arrive at Bonneville Dam are not accounted for at McNary Dam, an upstream journey of 146 river miles, found that survival of radio tagged adult chinook and sockeye salmon is below performance standards set in the Federal Columbia River Power System Biological Opinion for salmon and steelhead.

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