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Three Northwest tribes and federal agencies are getting closer to understanding how to revive chinook and sockeye salmon runs on the upper Columbia River that were once among the most abundant in the world but were decimated by dams over the past century. Leaders from the Confederated Tribes of the Colville Reservation, the Coeur d’Alene Tribe and the Spokane Tribe of Indians met with leaders from three federal agencies and the Northwest Power and Conservation Council in Portland on May 22 to discuss progress on their historic agreement from l...
For much of the past century, fish hatcheries have been built in the Pacific Northwest, across the U.S. and around the world to boost fish populations where wild numbers have gone down. But an analysis of more than 200 studies on hatcheries programs meant to boost salmonid numbers across the globe — including salmon, trout and whitefish — shows that nearly all have had negative impacts on the wild populations of those fish. Most commonly, hatchery fish reduced the genetic diversity of wild fish, leading to poor health and reproductive out...