The Great Lakes are different today than they were in the past, thanks to invasive species, changes in land use and climate change.
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Lake trout are still spawning in at least one tributary to Lake Superior decades after the fishery collapsed.
Fish can’t get past a dam on a river without help. Researchers are studying the best ways to help fish on the St. Croix River travel past the Woodland and Grand Falls dams, working with the owners, Woodland Pulp.
Fish in the Red River-Lake Winnipeg system don’t carry passports, even though they move between Canada and the United States. And they can benefit from the river system being relatively unimpeded by dams and other barriers as they migrate and spawn.
Water managers in the Rainy-Lake of the Woods watershed have worked to create ideal conditions to help lake sturgeon successfully spawn this year in the Rainy River.
As the last pieces of limestone and glacial cobble splashed into the waters of Lake Huron’s Saginaw Bay in late August, an experiment got underway to see how the ecosystem responds, and if the restoration of a degraded lake system reef might be repeatable elsewhere in the basin.