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Field Notes

Covering the natural wonders of the Pacific Northwest

January 24, 2013 at 7:00 AM

Predicting salmon returns: food supply is a good indicator

Every year fish managers attempt to predict how many Pacific salmon will migrate back to their home rivers. It’s a key exercise that drives everything from harvest limits to hatchery policy. A chinook salmon makes its way home to the Issaquah hatchery Photo by Alan Berner, Seattle Times staff photographer A team of scientists from NOAA