In Oregon, nonnative warmwater fish have a taste for juvenile Chinook salmon, researchers find

摘要

When warmwater fish species like bass, walleye, and crappie that are not native to the Pacific Northwest, but prized by some anglers, overlap with baby spring Chinook salmon in reservoirs in Oregon's Willamette River, they consume more baby salmon than native fish per individual, new research found.The research, recently published in the journal Ecosphere, may have implications for threatened salmon and future management strategies."Mixed-stock fisheries are complicated and always changing," said Christina Murphy, lead author of the paper who is a courtesy faculty member at Oregon State University and a biologist with the U.S. Geological Survey in Maine. "We are providing the science to help managers identify tradeoffs to make the best management decisions for each individual location."