Light Pollution

It’s been nearly 20 years since the federal government listed Puget Sound Chinook salmon as threatened under the Endangered Species Act. The fish inhabit one of the most urbanized watersheds in the region. Local governments have just updated a 10-year recovery plan. One of the new priorities they’re addressing is a possible link between fish mortality and artificial light.  

On a cold winter’s night, a team of federal researchers has just pulled in a net from the south end of Lake Washington. They’re working at five sites along the shoreline.

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