What is SSW?

Learn about Starry Stonewort, an invasive aquatic species threatening the Great Lakes basin.

Our Library

Reports, presentations, training materials, and links to information about Starry Stonewort in the basin.


We need help identifying the extent of the infestation of Starry Stonewort in the Great Lakes basin.

About the Collaborative

The Starry Stonewort Collaborative for the Great Lakes basin strives to enhance the capacity of experts, resource managers and local stakeholders to address Starry Stonewort by:
• Providing general knowledge of Starry Stonewort ECOLOGY
• expanding OUTREACH efforts at all levels but focusing on local communities and organizations
• reviewing and disseminating the best CONTROL techniques

Upcoming Events

Keep informed about what’s going on across the region in the fight against Starry Stonewort and other aquatic invasive species! Events coming soon are listed here, click to get more details. View our full calendar of events here.

There are no upcoming events at this time.


All underwater photography on starrystonewort.org captured by Scott Brown