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Governments will practice emergency response on lake against invasive mussels


Zebra mussles encrust a water current meter being lifted from Lake Michigan in 1999. Authorities worry it may soon invade Washington waters, causing millions in annual damage. - NOAA, Great Lakes Environmental Research Laboratory photo  

State, federal, and tribal governments will come together next week on Lake Roosevelt for the first on-the-ground exercise in the Columbia River basin to prepare for an infestation of non-native mussels that cause millions in damage in Eastern waters and are now expected to make their way here.

Invasive quagga and zebra mussels are small, non-native, freshwater mollusks that have caused significant environmental and economic harm in the United States. First arriving in the Great Lakes in the 1980s in ships' ballast water from the Caspian and Black Seas, they now spread primarily on recreati...

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