I Speak for the Fish: Not all lampreys are killers, but all are paying the price for their reputation
Native lamprey species in the Great Lakes generally get reviled by association with sea lamprey even though they don’t normally kill their host fish.
Gilboa Quarry is a popular Midwest dive destination with underwater attractions that include a helicopter, a plane and an aggressive school of rainbow trout.
In this month’s column, Kathy Johnson looks at how, when and where round goby were first identified in the Great Lakes.
An intuitive distrust of scuba divers reflects a key survival strategy of ducks and other waterfowl.
How the native smallmouth bass helped save logperch – the Great Lakes’ largest darter – from the invasive round goby.
Muskellunge are one of the Great Lakes top predators, and a species coveted by divers and sport fishermen alike.
As the year comes to a close, Kathy Johnson reminisces about the time she brought the Great Lakes to an international audience – and had them asking for more.
In this month’s column, Kathy Johnson talks about the tips she’s learned for navigating the waters from fish like walleye, sturgeon and gobies.
In this month’s column, Kathy Johnson describes her encounters with baby sturgeon and reintroducing them to the Great Lakes watershed.
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.
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.
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.
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.