Construction of new rock spawning reefs on the St. Clair River @UMNewsService
Construction of new rock spawning reefs on the St. Clair River  @UMNewsService
Uploaded May 2012 | Updated September 2026, 2 weeks ago
Construction of nine new artificial reefs on the St. Clair River northeast of Detoit, a project led by the Michigan Sea Grant program, is expected to boost populations of lake sturgeon and other rare native fish by providing river-bottom rock mounds where they can spawn. Michigan Sea Grant is a cooperative program of the University of Michigan and Michigan State University.
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Construction of new rock spawning reefs on the St. Clair River

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