Habitat Type: Freshwater
Comments: Chum salmon spend most of their lives (2-7 years, usually 3-5 years) in the ocean. Adults return to spawn in streams where they hatched, sometimes moving up to 2,000 km upstream in rivers lacking major barriers in Alaska and Canada but usually spawning not far from salt water (usually within 100 km). Spawning occurs in gravel riffles in rivers and streams of various sizes. The female digs a redd, or nest, by displacing gravel and making depressions in an area of about 2.25 sq meters (Moyle 1976).
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