Sunday, September 11, 2011

Willamette Fish Passage in the Oregonian

A good article last week in the Oregonian on plans to pass adult salmon above dams on the Willamette system. Both steelhead and spring chinook are ESA listed in the Willamette and dam construction is the primary culprit in their decline. More than 400 miles of habitat has been lost to dam construction in the basin and spring chinook have plummeted from an estimated pre-dam abundance of more than 300,000 to about 10,000 fish. The large flood control dams present a challenge in terms of engineering passage for juveniles downstream however a number of projects in the region may provide some insights on how to get fish moving downstream.

Read the article here:

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