Juvenile Chinook salmon traveling downstream had a survival rate of almost 94 percent while almost 100 percent of adult fish traveling back upstream survived.
Pet owners who walk their dogs along the Columbia River need to be mindful of the current toxic algae threat which can be deadly. The signs are posted in most impacted areas. There’s another potential threat lying on the edge of the river – dead salmon - and it can kill your dog.
Last month, the EPA ordered the U.S. Army Corps of Engineers to stop oil and other toxic chemical discharges into the Columbia River. The announcement put the issue of river spills back to the front burner. The group Columbia Riverkeeper sued the Corps last year, and says these pollutants harm fish and other wildlife in the Columbia and Snake Rivers. Miles Johnson, Co...