“To help combat the invasive, eel-like fish, Gov. Scott Walker signed legislation on Thursday for the state to spend up to $564,500 in the next two fiscal years on lamprey control efforts on Lake Michigan and Lake Superior.The controls include chemical treatments and barriers that block the movement of swimming lamprey, which according to the Wisconsin DNR ‘have no jaws, no true teeth, no paired fins and a skeleton made of cartilage, not true bone.’The state funds are expected to be matched with federal dollars for control efforts that are taking place across the Great Lakes basin.In Lake Michigan, 126 of 511 tributaries have historic records of sea lamprey production. Of those 83 tributaries have been treated with chemicals, according to the Fish and Wildlife Commission. A major focus of treatment took place on the Oconto River in northeastern Wisconsin, where about 60 miles of the river were treated.”
Recent News
- Join IISG as a new pollution prevention outreach assistant
- Beach season means it’s time for lifesaving Lake Michigan water safety resources
- New crayfish curriculum engages students in Great Lakes and local invasive species issues
- Relaunched website provides resources for proper medicine disposal
- Meet our Grad Student Scholars: Lena Azimi
IISG Instagram
IISG is hiring a part-time pollution prevention outreach assistant. IISG’s pollution prevention team addresses water quality issues affecting the Great Lakes coasts and the inland waters of Illinois and Indiana, specifically focusing on contaminants of emerging concern like pharmaceuticals, microplastics and marine debris, and PFAS. This outreach assistant will support the pollution prevention team by developing outreach activities and engaging with communities to share that knowledge.
Learn more and apply at the link in bio.

🌞 Enhance Your Summer Programs with Great Lakes Science! 🌞
Calling all summer science and STEM educators! Elevate your summer camps, summer school, or other summer programming with our Loanable Kits. Dive into Great Lakes science and stewardship, and inspire the youth you work with.
🔍 Why Choose Our Loanable Kits?
-Interactive Learning: Engage students with hands-on activities.
-Great Lakes Exploration: Teach the wonders of the Great Lakes.
-Environmental Stewardship: Foster a sense of responsibility and care for our natural resources.
📅 Learn More & Reserve Your Kits at the link in bio.

Don`t miss out on the latest edition of our "Making Waves in Education" newsletter! Reserve your spot for a live, Students Ask Scientists call from Lake Superior, and stay updated on upcoming in-person events to learn and network with fellow educators. Perfect for Illinois and Indiana educators passionate about the Great Lakes and environmental education.

Join us on June 6-7 at the Indiana State Fairgrounds to explore aquaculture business management at the NCRAC Aquaculture Business Short Course! Presented by Sea Grant & @purdueextension, this course provides essential skills for effective farm finance management. Don’t miss this opportunity to enhance your expertise in aquaculture!
Important Info:
-Hands-on training to help aquaculture producers manage their farm finances
-Includes one-on-one expert time + free $120 textbook
-Instructors from Purdue, Mississippi State, and University of Maryland
-Laptop + farm financials required for participation
-Limited seating – first come, first served!
More info at the link in bio.
