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Herbicide Resistant Milfoil in Silver Lake
Silver Lake was so choked with aquatic weeds last summer that it was difficult to enjoy boating, swimming and fishing. The thick canopy of vegetation floating on the surface water turns out to be a mix of 20 different plant species, but not surprisingly, Eurasian watermilfoil, an aquatic invasive species, accounts for 60 percent of the growth.

Of the 491 test established test sites on the lake, 213 had varying densities of the milfoil. Unfortunately it also seems to be hybrid milfoil that is resistant to chemical treatment. Samples of the suspected herbicide resistant milfoil were sent to Grand Valley State University in Michigan for DNA analysis.

 
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Environmental and Ecological Impacts of Flyboarding - There are a variety of potentially very serious environmental and ecological impacts of these water jet devices on lake ecosystems. Like a wave runner or jet ski the devices use a water jet through a nozzle to generate very high thrust. Unlike a jet ski in which the thrust is horizontal, the high thrust of these devices is directed in multiple vector directions - often a downward vector in order to propel the user into the air.


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