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Residents Unhappy with Chemical Treatment to Control Curly Leaf Pondweed
Birchwood residents pride themselves on being the “Bluegill Capital of the World”, but are worried that may change now that officials have begun using herbicides to treat curly leaf pondweed in Big Chetac Lake.


The first application took place this spring and was supposed to be on a 90-acre test area, but the chemical drifted more than 1 ½ miles killing most of the vegetation in an 800-acre area of the lake.

While surveys may have shown strong support for the herbicide treatment, many residents are concerned about the long-term effects of herbicides on the lake’s ecosystem and that the curly leaf pondweed has been on the lake for decades and is limited to certain parts of the lake and is only present from late-May to late-June.
 


 
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Stormwater Pollution is Killing Coho Before Spawning - Researchers at NOAA’s Northwest Fisheries Science Center in Seattle worked with collaborators, including the U.S. Fish and Wildlife Service, local tribes and the Wild Fish Conservancy, to survey 51 sites from 2000 to 2011 in streams all over the Puget Sound basin. They used the survey data with a new computer model to map predicted coho death rates. The results show that in an estimated 40 percent of their range in the Puget Sound Basin, 10 to 40 percent of coho salmon die before they can even spawn because of pollution.


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