What is the largest creature in Lake Michigan?

The Lake Sturgeon - Michigan's Biggest Creature You may be a little startled if it decides to swim past your feet, as the Lake Sturgeon is rather big in size. On average, they can be anywhere between six and three feet in length. They will also weigh anywhere between 30-100lbs.



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You won't find much in the way that will leave you wanting to stay out of the waters here in the Great Lakes. The description of the biggest predator in the Great Lakes may drive you to at least do it during the day if anything... Michigan's biggest predator in the Great Lakes is a Sea Lamprey.

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While this 193-pound lake sturgeon is still the largest fish ever caught in Michigan, some state they observed lake sturgeon as big as 300 pounds in the Great Lakes Basin.

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At the bottom of Lake Michigan, you will find non-fish inhabitants of the lake, such as worms, mollusks, amphipods, and insect larvae. These small creatures provide food for non-native fish such as whitefish, round goby, and perch.

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Lake Michigan is generally clean and safe for swimming but it can become contaminated with harmful bacteria.

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Sea lamprey, snapping turtles, and blue-green algae are some of Lake Michigan's most pesky and dangerous creatures.

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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.

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The first recorded sighting of a bull shark in the Great Lakes was in 1937, when a 10-foot specimen was caught near Alton, Illinois, on the Mississippi River. Since then, there have been several other reported sightings of bull sharks in the Great Lakes, including Lake Michigan, Lake Huron, and Lake Ontario.

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Lake sturgeon live longer than any other fish species in Michigan. Male lake sturgeon live an average of 55 years. Females live 80-150 years.

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Two Coho fishermen pulled a 29-inch shark from Lake Michigan about two miles off the Milwaukee shore on April 25, 1969. The shark was dead, but for several days fishermen in the area were uneasy.

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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.

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The Dewey Lake Monster, also known as the Sister Lakes Sasquatch, in Michigan folklore, is purported to be an ape-like creature, similar to descriptions of Bigfoot, that was allegedly sighted in the summer of 1964 near Dewey Lake and Sister Lakes in Dowagiac.

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During the 1960s, Lake Erie was declared a “dead lake” due to eutrophication and pollution. The children's book, The Lorax, written by Dr.

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There are some odd geological finds at the bottom, including a 2007 archeological find that was described as Stonehenge-like, although it was actually more in a V-shape. One of the stones is said to have a mastodon image on it (although it's not fully clear if it was man-made or just a natural formation).

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The United States Environmental Protection Agency, for example, describes them as “vast inland freshwater seas.” A seminal 2017 paper in Limnology and Oceanography, authored by some of the most influential researchers studying the lakes, also refers to them as 'inland seas.

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