“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.”
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Recent News
- New step-by-step guide and veterinary brochures expand UnwantedMeds.org resources
- The Helm magazine focuses on coastal resilience, the Lake Michigan food web, and more
- The Know Your H₂O Kit gets a real-world lab test by middle schoolers
- IISG has a long history of supporting teachers through Great Lakes activities and resources
- Join Sea Grant to oversee program research and reporting
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IISG is seeking a talented and passionate person to join our team as a research & reporting administrator. This is an exciting leadership opportunity for someone interested in managing a competitive research portfolio and leading our annual reporting process to make a real impact on the health and vitality of our Great Lakes ecosystems and communities.
The successful candidate will be responsible for overseeing our research competitions, spearheading data collection and reporting for our ~$5 million program, and supervising a small team of dedicated staff.
Interested? Learn more at the link in bio.
Just in time for DEA National Takeback Day on October 25, Unwanted Meds now has an interactive step-by-step guide that walks users through how to properly dispose of different types of medicine. Users can also find two new educational brochures designed to help veterinarians, pet owners, and livestock farmers prevent accidental poisonings and pollution.
Learn more at the link in bio.
Join us November 5th and November 12th seminars on the latest fish biology, ecology, and fisheries science happening in Lake Michigan.
Topics will include:
• PFAS contamination in coastal tributaries
• Great Lakes Spawning Whitefish and Invasive Mussels (SWIM) project
• Hatchery update from the Indiana Department of Natural Resources
Learn more and register at the link in bio.
How Do You Track a Fish in a Great Lake?
Are your students curious about how scientists track fish underwater? In this Students Ask Scientists session, discover how researchers use acoustic telemetry to track fish like yellow perch in Lake Michigan.
You will meet Anna Hill, a master’s student at Purdue University, as she shares her career journey studying marine and freshwater systems.
📅 Date: November 6, 2025
🕚 Time: 11:00 AM–12:00 PM CT
🎯 Audience: Middle school students & up + educators
💻 Location: Zoom (Pre-registration required)
Learn more and register at the link in bio.
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