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National Park Service ecologists and resource managers explain why zebra mussels are an ever increasing threat to Lake Superior waters and what people can do to slow or even stop the spread of these invasive species.
Lynette Potvin, Ecologist at Isle Royale National Park, and Julie Van Stappen, Chief of Resource Management at Apostle Islands National Lakeshore, describe the threats zebra mussels pose to Lake Superior waters. They also share precautions people can take to help stop the spread of these invasive species during this 60 second video.