An unusual number of Chinook salmon carcasses have been found in the Willamette River around Portland. State wildlife biologists are blaming warm water.
Salmon need cool water to thrive. Nick Swart, a spokesman for the Oregon Department of Fish and Wildlife says in the last week they've measured temperatures at 75 degrees around Willamette Falls.
Swart: "That's really a precarious condition for migrating fish."
Jeff Ziller, with ODFW's Springfield office, says the warmer water is due to drought conditions.