This map provides an interactive portal to reported localized aquatic invasive species infestations. The buttons on the left will allow you to toggle between a county-based or watershed-based for six different species for which there is currently available and comprehensive data. Clicking on a specific county or watershed will give you the location and date of confirmed occurrences for your invasive species of concern. Note that each individual Great Lake can also be selected.
Absence of data does not imply absence of invasive species.