another small step for Great Lakes ballast control
But a great symbol!
Boaters and commercial shippers will be prohibited from emptying ballast tanks within Isle Royale National Park in Lake Superior unless the ballast water is treated to kill invasive species, officials said Monday.
The emergency regulation is designed to protect the park's fish populations — including the rare coaster brook trout — from a deadly virus spreading rapidly across the other Great Lakes, said Phyllis Green, superintendent of Isle Royale.
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