Another Columbia Bass Study To Begin

A federal council has approved funding a new study of smallmouth bass predation on salmon smolts in the Columbia River to the tune of $350,000.

According to a story in last Friday’s Northwest Fishletter:

The study will look at suspected “hot spots” for smallmouth bass in the forebays at McNary, John Day and The Dalles dams, and try to compare them to tailrace areas thought not to be hot spots for the bass, based on pikeminnow catch data.

The proposal will also try to figure out the role of juvenile shad in the diets of non-native predators.

This follows up on 2008’s Biological Opinion which tasks hydropower managers with reducing the impact of introduced non-native fish on salmonids, as well as a meeting of scientific minds in late summer that year, Fishletter reports.

We summarized ideas that came out of that meeting in our February 2009 issue with the below table:

(NORTHWEST SPORTSMAN)

UPDATE JUNE 25, 2010: THE COLUMBIA BASIN BULLETIN TODAY HAS A LARGE PIECE ON THE NEW STUDY.

CBB ALSO REPORTS ON A SNORKELING SURVEY OF SMALLMOUTH BASS OCCURRING FOR THE SECOND YEAR IN A ROW ON THE UPPER JOHN DAY BY U.W. GRAD STUDENTS.

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