“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.”
Category:
In the news: Wisconsin governor signs lamprey control measure
December 18th, 2013 by Irene MilesIn the news: Genetic mapping may help solve the invasive lamprey dilemma
March 25th, 2013 by Irene Miles
From the Great Lakes Echo:
“Sea lamprey – unlike the silver and American brook species – come from the Atlantic Ocean, accidentally introduced to the Great Lakes through shipping canals.
Like the native silver lamprey, sea lamprey are parasitic, with sharp teeth and a sucking disc mouth that allows them to feed on the blood of host fish. Also like the silver lamprey, they are harmless in their early stages of development.
Sea lamprey spend the first four years of their life as larvae in the soft bottom and banks of lakes or streams, according to the New York Department of Environmental Conservation.
As they mature, they change into the harmful predator threatening the Great Lakes today, said Yu-Weng Chung-Davidson, a senior research associate on Li’s team.”
Recent News
- Coastal communities can tap into IISG resources as they manage beach sand and structures
- It’s time to apply for the 2026 IISG Graduate Scholars Program
- IISG’s Eliana Brown wins 2025 Illinois Extension Excellence Award
- We’re hiring eight interns for summer 2026
- In 2026, IISG intends to fund 10 research projects focused on coastal concerns
IISG Instagram
Graduate students: don’t miss your chance to advance your research and expand your professional network! The 2026 Illinois-Indiana Sea Grant Graduate Scholars Program is now open for applications. Whether your work focuses on coastal resiliency, Great Lakes science, water resources, or community engagement, this opportunity offers funding and professional development to support your graduate research. Learn more and apply today — opportunities like this don’t come every year!
👉 Read the full details at the link in bio.
Join us next month at the Friends of the Chicago River’s Friends of the Chicago River’s annual Student Congress. We’re excited to attend this free, student-driven environmental conference where we will be leading the Great Plankton Race.
Learn about river issues, connect with peers and professionals, enjoy snacks & giveaways, and even see live animals.
Who: Open to all students, families welcome too!
Where: On the campus of Northeastern Illinois University
When: Saturday, February 28, 2026
8:30 a.m. to 1:30 p.m.
Learn more and register at the link in bio.
#TeachingTuesday #ChicagoRiver
✨ Start Your New Year with Great Lakes Learning! ✨
Kick off 2026 by exploring the Center for Great Lakes Literacy Resource Library. It’s your one-stop hub for lesson plans, activities, and tools to bring Great Lakes science into your teaching setting.
Visit the link in bio to dive in today!
#TeachingTuesday
#GreatLakes #NewYearNewResources
Join us for a hands-on Project WET Make-and-Take Workshop in Chicago!
📅 When: March 12, 2026 from 9:00 AM – 3:30 PM CT
📍 Where: 200 S Wacker Dr., Chicago, IL
💲 Cost: $25 (includes classroom-ready activity kits, lunch & refreshments)
🗓️ Registration closes February 26.
✅ Open to 3rd–8th grade formal & informal educators
✅ Earn 6 PD hours
✅ Leave with ready-to-use water education kits aligned to Common Core & NGSS
👉 Don’t miss out—space is limited!
Learn more and register at the link in bio.
@thengrrec
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