“The exercise – including intensive netting and electro-fishing – will be the first of its kind utilizing provisions of the new Mutual Aid Agreement for Combating Aquatic Invasive Species, signed at the Council of Great Lakes Governors meeting on April 26 in Chicago…Crews coordinated by the Illinois and Indiana Departments of Natural Resources are deploying boats on Chicago’s Calumet Harbor, and on adjoining waters of Lake Michigan on both sides of the Illinois-Indiana state line, for electro-fishing and netting to determine whether invasive Eurasian ruffe are present.‘Aquatic invasive threats know no national or state boundaries. Our ability to sample fish communities, respond quickly, and effectively communicate on efforts could be critical in the future to respond to a threat within the Great Lakes basin,’ said Indiana DNR Aquatic Invasive Species Coordinator Eric Fischer.Eurasian ruffe, an eastern European species of fish, have been found in Lake Superior since the mid-1980s, have a similar diet and feeding habits of native fish, and could present problems for the food web in Lake Michigan. Researchers detected environmental DNA of Eurasian ruffe in Calumet Harbor last year.”
Recent News
- Tomas Höök signing off as Illinois-Indiana Sea Grant director this summer
- Illinois-Indiana Sea Grant welcomes Stuart Carlton as the program’s new director
- Four Illinois and Indiana educators will set sail on Lake Michigan aboard EPA’s research ship
- Join IISG as a new pollution prevention outreach assistant
- Beach season means it’s time for lifesaving Lake Michigan water safety resources
IISG Instagram
The Shipboard Science Immersion educators worked together to simulate sonar mapping and uncover the secrets of a mystery seabed, just like real underwater archaeologists!
This hands-on lesson mirrors the work of Dr. Ashley Lemke from University of Wisconsin Milwaukee who studies paleo landscapes below Lake Michigan by collecting sonar data from lakebeds. Experiences like these can be shared with youth to spark curiosity and connect them to real-world science in action.
#LakeMichigan #GreatLakes

15 educators from 7 Great Lakes states have boarded the R/V Lake Guardian for a week of science on Lake Michigan!
Day one was all about meeting fellow educators and the science team from the @epa_greatlakes, @uwmilwaukee, and @purduefnr, and getting shipboard safety training.
This hands-on program, supported by the Great Lakes Restoration Initiative, helps bring Great Lakes science into classrooms and builds educator-scientist partnerships.
Follow along as we explore water quality, food webs, and even underwater archaeology!
#GreatLakes #LakeMichigan

Ready for a party? Join us on the newly-expanded Wild Mile for a celebration of our urban waterways and thriving park spaces. Enjoy local beer, food trucks, and an outdoorsy prize drawing while learning about local environmental nonprofits and volunteer opportunities! This event is free and fun for all ages!
The block party is rain-or-shine, and we`ll only cancel in the case of hazardous weather!
This year’s community partners include @Openlands, Current Water, @chicago_enviro, @cleanupclub_chicago, @chicago_birder, Blazing Star School, @cubillinois, Friends of the Bloomingdale Trail, @chicagoshapers, @reducewastechicago, Southern Utah Wilderness Alliance, and @honeycombproject!
Learn more at the link in bio.

📢 Show Your Support for Sea Grant! 📢
Continued federal funding for Sea Grant in FY26 is crucial, and we need your help to demonstrate the nationwide support for these essential programs.
🖊️ Sign the letter urging Congress to continue funding Illinois-Indiana Sea Grant and all 34 state Sea Grant programs:
🔗 https://forms.gle/7sPGHGyh8j8a7vfGA or link in bio
