From the Great Lakes Echo:

Any lake trout pulled from the wild blue waters of Lake Michigan now was probably born in a government building.

That’s despite a 45-year-old, multi-million-dollar program aimed at restoring a self-sustaining, naturally reproducing population of what was formerly the Great Lakes’ top predator.

Lake trout were wiped out in most of the Great Lakes by the mid-1900s as a result of overfishing, invasive species and habitat destruction. Managers started stocking them in Lake Michigan in 1965.

After little success, a 1985 revamp of the plan focused stocking on two relatively shallow, rocky sections of Lake Michigan where fishing for the species was banned.

At least part of that overhaul has proven fruitless, according to a study published recently in the North American Journal of Fisheries Management. Read more.

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When participating in a crayfish participatory science activity, be sure to snap plenty of photos of any crayfish you catch or observe. Not only is it a great way to capture the fun and excitement of the day, but it also helps document the species present. To ensure accurate identification by scientists, it’s important to provide clear photos from multiple angles. Dorsal (top), lateral (side), and ventral (underside) views of the crayfish should always be photographed.To learn more about the specific features to highlight in your photos visit the link in bio or InvasiveCrayfish.org/Management/#Community
Who says “Back to School” means back indoors? While the weather is still warm, take your students on an outdoor science adventure by exploring crayfish in your local waterways.The Invasive Crayfish Collaborative invites grades 2-12 educators to take part in a hands-on participatory science activity. By catching, identifying, and reporting crayfish species in your area, students contribute valuable data that helps scientists better understand where native and invasive crayfish live.Check out what other educators have found and get involved: inaturalist.org/projects/great-lakes-crayfish
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