Study: Willamette Spring Chinook Migratory, Rearing Diversity Contributes To Population Stability

Some Willamette River wild spring chinook salmon fry migrate within weeks of emergence from spawning areas and will travel as far as 140 kilometers (87 miles) to 200 kilometers (124 miles) to rearing areas downstream before they migrate to the Columbia River estuary as subyearling smolts.

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