“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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Meet IISG grad student scholar, Dohyung Bang! Dohyung is a PhD candidate in the White Lodging-J.W. Marriott, Jr. School of Hospitality and Tourism Management (@purduehtmlife) program at Purdue University. He is studying how complex tourism systems shape societal and economic outcomes. His project, funded by IISG, examines the impact of the home-sharing economy on housing market dynamics in the Lake Michigan area.
Photo 1: photo of Dohyung Bang
Photo 2: A map illustrating short-term rental distribution in the Chicago area.
Photo 3: Dohyung Bang presents his research at the 31st Annual Graduate Education and Graduate Student Research Conference in Hospitality and Tourism
Learn more about Dohyung’s work at the link in bio.
Interested in becoming an IISG grad student scholar? Learn more: https://iiseagrant.org/its-time-to-apply-for-the-2026-iisg-graduate-scholars-program/
Join the 2026 Great Lakes BioBlitz! 🌎🦋📸
Starting Earth Day, educators, students, youth groups, and families are invited to help document biodiversity across the Great Lakes region using iNaturalist. A kick-off webinar is scheduled for April 16th at 2 pm CT.
Participate anytime during the four‑week event. Snap photos, make observations, and contribute to real conservation data while getting students outside and engaged with nature.
Learn more and get ready to explore: https://sites.google.com/wisc.edu/annual-great-lakes-bioblitz/2026
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Don’t miss out! Join us for a deep dive into the latest Lake Michigan fisheries science.
Topics will include:
-Reef restoration impacts on aquatic and fish species
-Wild reproduction rates for salmon and trout species from the Great Lakes Mass Marking Program
-Fisheries update from the Illinois Department of Natural Resources
Learn more & register: https://purdue.ca1.qualtrics.com/jfe/form/SV_86eBlPnbjdm7pPg
Celebrate Earth Day with freshwater science and good conversation! Join Illinois-Indiana Sea Grant, the Northwestern Center for Water, Loyola University researcher Tim Hoellein, and IISG’s Sarah Zack for Science Sips: Trash Talk about Chicago Waterways. Learn what research reveals about litter and trash in Lake Michigan and Chicago waterways and what we can do to help.
Plus, enjoy Great Lakes trivia games!
📅 April 22, 2026
⏰ 7–9 PM
📍 Sketchbook Brewing Company, Evanston Tap Room
Come curious and ready to test your Great Lakes knowledge!
