Also called rock sturgeon, this freshwater fish is the oldest and largest native species in the Great Lakes. These huge fish can measure six and a half feet (two meters) long and weigh close to 200 pounds (90 kilograms). Instead of scales, the lake sturgeon has coarse skin.
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Lake Superior is the largest freshwater lake in the world by surface area and the third-largest by volume, holding 10% of the world's surface fresh water.
Lake sturgeon are the largest fish in Lake Superior. They are among the oldest fish in the lake too. Did you know that a lake sturgeon can live to be older than 100 years? This species of fish has also been around for a long time—about 150 million years.
With the warm winter we have had, the whales are well fed and very active. We've actually had a few whales jump over some of our groups today! We have confirmed sightings of some orcas near humpbacks near the Duluth pier, orcas Split Rock, and even some bull sharks circling the wreck of the Maderia.
Alligators are rarely found in the Great Lakes. Although some alligators thrive in freshwater, it's just too cold in the north for them to survive. They don't typically live farther north than North Carolina. It's unclear how the alligator arrived to Lake Michigan.
In northeastern Ohio and Michigan folklore, Bessie is a name given to a lake monster in Lake Erie, also known as South Bay Bessie or simply The Lake Erie Monster.
While there have been past “sightings,” most have turned out to be pranks or misidentifications. The reality is that the largest of the Great Lakes (Lake Superior and Michigan) are extremely deep lakes that are too cold for sharks.
AP'S ASSESSMENT: False. Bull shark sightings have been confirmed in the Mississippi River as far north as Alton, Illinois, but reports of the sharks being found in the Great Lakes are either hearsay or hoaxes, multiple experts told The Associated Press.
The organisms living on the bottom in shallow waters are the same kinds of snails, clams, worms, mayflies, and caddisflies found in most small lakes. The deep waters, however, are the realm of some organisms that are found only in the deep, cold lakes of the northern latitudes.
The sea lamprey is an invasive species living in Canada's Great Lakes that had been kept under control for decades - until now. Erica Vella explains how the pandemic fuelled a population spike among the “vampire fish,” and what's being done to stop them.