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Researchers Study Invasive Mussels
Invasive zebra and quagga mussels were discovered for the first time in recent years around the Apostle Islands National Lakeshore on Lake Superior. National Park Service officials are working with researchers to find out how the aquatic hitch hikers got there.

Zebra mussels were first found in the Duluth-Superior harbor in 1989 while quagga mussels arrived in the ballast water of ships in 2005. The aquatic invaders tend to crowd out native freshwater mussels.

Julie Van Stappen with the Apostle Islands Nationahl Lakesore said divers discovered zebra mussels in 2015 and 2016 on the Sevona shipwreck near Sand Island.



 
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Long Island Sound, An Ecosystem in Crisis - The Long Island Sound is sending out distress signals from its dead zones. The Sound is at a crossroads and its future health is at stake, a jigsaw puzzle of problems contribute to the Sound’s plight, from the hundreds of sewage plants discharging pollutants, to the nitrogen escaping tens of thousands of private septic systems, to the chemical runoff from farm and lawn fertilizers flowing into its waters.


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