Contribute to GLANSIS
Help us track, identify, and manage invasive species across the Great Lakes. Your sightings, data, and feedback make a difference.
Report Data
Submit your sightings of aquatic invasive species. Your data helps scientists and managers track the spread of nonindigenous species.
Report a SightingSubmit Photos
Have high-quality images of invasive species? Contribute them to our database to help others identify these organisms in the wild.
Upload PhotosMystery Snails
Participate in our targeted regional effort to map and identify invasive mystery snails across the Great Lakes basin.
Learn MoreFeedback
Tell us how we can improve the GLANSIS website, tools, and educational resources to better serve your needs.
Give Feedback