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Answer:
The Canals made shipping more efficient, but as an unintended consequence also allowed rapid expansion of the zebra mussel's range. By the 1830s, these mussels covered much of Europe and Britain.
Successful introduction of zebra mussels into the Great Lakes probably occurred in 1985 or 1986, after transoceanic ships discharged contaminated ballast water from foreign ports into lakes St. Clair and
Zebra mussel is a freshwater organism that belongs to the phylum Mollusca and is invasive species. They can spread quickly as they are small and can spread by the water current.
What is a Zebra mussel?
Zebra mussels are the Molluscans that are composed of the outer hard shell and are found in the freshwater rivers and lakes. It was unintentionally transported to the new ecosystem.
They are small and free-swimming organisms that can easily flow and transport through the water currents and can easily attach to the surfaces of the rocks, fishes and vessels.
Therefore, zebra mussels can spread quickly.
Learn more about zebra mussels here:
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