“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.”
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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.”
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Trash talk + trivia + Great Lakes science at a brewery on Earth Day.
Science Sips: Trash Talk about Chicago Waterways brought together researchers, curious locals, and trivia bingo to talk about what’s really floating in Lake Michigan and what we can do about it.
Thank you to everyone who came out and to @sketchbookbrew for hosting!
Located in Washington, D.C., the Sea Grant Knauss Fellowship provides a unique educational and professional experience to graduate students who have an interest in ocean, coastal and Great Lakes resources, and in the national policy decisions affecting those resources. This is a one-year fellowship open to any student, regardless of citizenship, who is enrolled toward a degree in a graduate or professional program on the day of the deadline.
Students enrolled at an Illinois or Indiana university or college should submit their applications through Illinois-Indiana Sea Grant by emailing Angela Archer at amcbride@purdue.edu. Students in surrounding states without a Sea Grant program should contact the National Sea Grant College Program at oar.sg.fellows@noaa.gov for a referral.
Application deadline: June 3, 2026.
To learn more about the fellowship, visit the link in bio.
PD hours + Great Lakes science + hands-on learning? Yes please.
Illinois-Indiana Sea Grant has five educator workshops lined up for spring and summer 2026, covering birds, watersheds, coastal science, earth systems, and engineering design.
🐦 May 3 · 💧 June 10 · 🌊 July 16 · 🌍 July 31–Aug 1 · 🏗️ Aug 18
Real-world connections. Field experiences. Takeaways your students will actually feel.
🔗 Register at the link in bio.
Freshwater science meets comic con. 🎮🌊
We brought the Great Lakes to @c2e2 in Chicago, and thousands of visitors discovered that food webs, invasive species, and aquaponics can be just as wild as surviving an alien ocean.
(Yes, we used Subnautica as a gateway to Great Lakes science. Yes, it worked.)
What topic do you think got people the most excited?
Full story at the link in bio.
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