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Feature HomepageFish, Birds and AnimalsKathy JohnsonLatest NewsMichiganNewsResearch, Data and TechnologySturgeonWisconsinSturgeon Restoration: Studying Michigan’s and Wisconsin’s current flourishing populations
-In the few locations in the Great Lakes where lake sturgeon still spawn successfully, restoration efforts are focused on studying and managing those existing populations or boosting low populations.
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I Speak for the Fish: Setting sturgeon free
-In this month’s column, Kathy Johnson describes her encounters with baby sturgeon and reintroducing them to the Great Lakes watershed.
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I Speak for the Fish: No petting for these cats
-Of the 46 species of catfishes found in North America, you can find only nine of them in the Great Lakes. In this month’s column, Kathy Johnson discusses encounters with some of them, including one of the rarest fish in Ontario.
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Raising Fish: An inside look at how one hatchery is helping to restore native Great Lakes species
-Raising lake sturgeon, walleye and whitefish requires knowledge of biology, engineering, physics, mathematics and a stomach impervious to strong fish smells.
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I Speak for the Fish: Shell middens reveal interesting clues about the humble muskrat
-For the average curious person, an easy way to learn what some animals are eating is to find a riverbank midden – a pile of discarded shells located near the water’s edge where muskrat, mink or otter reside.
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I Speak for the Fish: Mussel memory, the race to save an endangered species
-For eight hours each day, Kathy Johnson knelt in waist-deep water sorting a steady flow of material moving along a two-foot-wide conveyor belt. She was looking for treasure but not of the golden variety – her team was after an endangered freshwater mussel.
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Feature HomepageFish, Birds and AnimalsI Speak for the FishKathy JohnsonLatest NewsNewsResearch, Data and TechnologyI Speak for the Fish: April showers bring vernal pools and baby salamanders
-Our first underwater shoot each spring begins with a long hike through a hardwood forest. Our high-definition underwater camera system and associated gear weigh in at close to 50 pounds, making the 3-mile trek more laborious.
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Feature HomepageFish, Birds and AnimalsHistory and CultureI Speak for the FishKathy JohnsonLatest NewsNewsI Speak for the Fish
-In this new Great Lakes Now monthly column, professional diver Kathy Johnson talks about what drew her to Great Lakes native fish advocacy.
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Drinking WaterGroundwater ContaminationIllinoisKathy JohnsonLatest NewsMichiganNewsOntarioResearch, Data and TechnologyScience, Technology, ResearchWater Quality and Restoration EffortsRoad Salt: Researchers look at vegetables and juices for alternatives to salt
-Great Lakes residents depend on road salt to reach their destinations safely in the winter, but that safety places a heavy burden on freshwater ecosystems.
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Age of NatureFish, Birds and AnimalsKathy JohnsonLake ErieLake HuronLake MichiganLatest NewsMichiganMinnesotaNewsPennsylvaniaRecreation and TourismShipwrecksWisconsinShipwreck Life: How fish and other aquatic species utilize Great Lakes shipwrecks
-From bass and burbot to freshwater sponge, the kind of ecosystem that forms around Great Lakes shipwrecks are as varied as the thousands of wrecks.
