A diver at the wreck of the Prins Willem V, in Lake Michigan near Milwaukee. From the Milwaukee PBS program "Shipwrecks of Milwaukee"

Invasive mussels are hastening the deterioration of historic Great Lakes shipwrecks, like the submerged Prins Willem V off Milwaukee. Zebra and quagga mussels are also a big problem for water treatment and power plants. But science — and another invader, the round goby—could help fight them.  

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