In the great lakes, 65% of the invasive species come from the ships that carry ballast water tanks to stabilize them on the long route journeys, this release invasive species when loading and unloading cargo.
Cleaning up these ballast water is one of the most effective ways to stop the new invasive to enter the Great Lakes.
Most of the ways to stop invasive animal species from entering the Great Lakes ecosystem is starting with people themselves. try not to plant anything that would be invasive to the echo system and also try helping out by cleaning out the Great Lakes by picking up litter and so forth
