Lamprey Returned to Yakima River Basin

After decades of considering lamprey a parasite that merely fed on other fish, federal and state authorities are now heeding what Northwestern tribes have long said — lamprey play an important role in the ecosystem and subsequently improve the survival rate of other species, such as salmon. Roughly 50 years ago, dams began blocking lamprey — which spend roughly two years in the ocean — from much of the Columbia River and its tributaries. With the ancient creature facing extinction, five states, along with federal agencies and several tribes, have embarked on a massive restoration project.

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Lamprey release on Tuesday, May 14, 2013. (SARA GETTYS / Yakima Herald-Republic)



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