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Threats from Invasive Species
Aquatic invasive species like the zebra mussel disrupt the Great Lakes food web, undermines recreational opportunities and costs people, businesses and communities more than $200 million per year in damages and control costs. Non-native Asian carp present the most urgent threat to the Lakes. We can prevent unwanted new invaders from entering U.S. waters by requiring ships to treat their ballast water. We can also prevent aquatic invaders like the Asian carp from colonizing other waters by building a physical barrier to separate the Great Lakes and Mississippi River watersheds. Read about Great Lakes Invasive Species from the U.S. Environmental Protection Agency.