Columbia River Chinook Salmon

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Date Range: 1938-2009

Today on the Columbia, salmon return in only a fraction—perhaps 5 percent—of their historic abundance. And because most salmon on the Columbia today are hatchery-raised fish, the true picture of salmon is even less rosy. Wild Chinook may only now be 1 percent of their historic numbers.

See also: Wildlife Abundance for Five Indicator Species.

This research is part of the Cascadia Scorecard project.