The Grand Coulee and Chief Joseph dams don’t include fish ladders, and so in August the Colville Tribes released 100 salmon 35 miles upstream of the two dams in an attempt to see if they would survive and spawn.
More than 50,000 juvenile fish were killed or escaped in the incident on Skye, says an industry body. The Scottish Salmon Producers Organisation (SSPO) said predation attacks continued to have a significant impact on fish health and welfare.
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