Great Lakes Exotic Species/Great Lakes
Invasive Species
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Exotic species are one of the greatest threats
to the health of the Great Lakes!
The invasion of exotic species is one
of the most grave dangers facing the Great Lakes today. Invasive species
such as Asian carp, zebra mussels, sea lamprey, and ruffe have taken
over Great Lakes ecosystems at the expense of native species.
Exotic species are brought to the Great
Lakes region and spread through ballast water dumped by ships that have
been overseas, personal watercraft and people travelling between bodies
of water.
Exotic species have cost the United States
over $100 billion in the last 85 years!