“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.”
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Meet IISG grad student scholar, Wei Wu! Wei is a Ph.D. student at Purdue University focused on building AI-powered tools for coastal resilience. His research interests are combining drone sensing, 3D modeling, and immersive visualization to make environmental change more visible and measurable. Through IISG-supported research, he is advancing innovative approaches to monitor and strengthen communities along Southern Lake Michigan.
Full story at the link in bio.
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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 at the link in bio.
With spring around the corner, are you curious how this year’s ice cover on Lake Michigan compares to past years? @noaa.glerl has got you covered with the data. Then you can borrow our Great Lakes Basin floor map to help students visualize the data.
View the data: https://www.glerl.noaa.gov/data/ice/
Request to borrow the map: https://iiseagrant.org/education/loanable-kits/
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Satellite Photo: February 12, 2023, MODIS satellite imagery indicates below-average ice cover on the Great Lakes for this time of year. (Credit: NOAA GLERL / NOAA Great Lakes CoastWatch Node)
Since January, we’ve been busy helping students and educators dive deeper into hands‑on science! This winter, our team supported community engagement at the Step N2 STEM event, the Annual HASTI Conference, at Decatur Classical School, and at the Chicago River Student Congress.
Educators and students joined us to:
🔍 Explored macroinvertebrates up close
🌊 Learned about watersheds through an interactive game
🔬 Investigated plankton under a microscope
🦠 Engineered and raced plankton in the Great Plankton Race
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