What is the dead spot in Lake Erie?

In Lake Erie, the hypoxic zone can be as large as 10,000 square kilometers and alters the lake ecosystem from July to October. These low oxygen areas are often referred to as “dead zones,” because many mobile organisms leave the hypoxic zone, and many sessile organisms die without adequate oxygen.



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Lake Erie is the smallest of the Great Lakes by volume and also the shallowest. It warms quickly in the spring and summer and cools quickly in the fall. The shallowness of the basin and the warmer temperatures make it the most biologically productive of the Great Lakes.

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Invasive fish can kill and eat all kinds of other species and vegetation, wreaking havoc on the balance of the lakes habitat. Three of the most dangerous fish in the Great Lakes are the pacu, snakehead and sea lamprey.

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Because of the phosphorus reductions, our Lake became much more clear and clean. Fish flourished and Lake Erie became known as the “Walleye Capital of the World.” Tourists once again flocked to Lake Erie. Lake Erie became the greatest ecosystem recovery in the world.

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With a mean surface height of 570 feet (170 metres) above sea level, Erie has the smallest mean depth (62 feet) of the Great Lakes, and its deepest point is 210 feet.

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The average underwater visibility of Lake Superior is about 8 metres or 27 feet, making it the cleanest and clearest of the Great Lakes.

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Lake Erie has a lake retention time of 2.6 years, the shortest of all the Great Lakes. The lake's surface area is 9,910 square miles (25,667 km2). Lake Erie's water level fluctuates with the seasons as in the other Great Lakes.

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Currents in Lake Erie can be dangerous! Any current flowing faster than 2 mph is considered dangerous. Dangerous currents can exceed 5 mph — faster than an Olympic swimmer can swim.

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Sea lampreys are the Great Lakes' biggest predators. They attach to valuable fish and feed on their victims blood and body fluids.

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Lake Erie boasts one of the healthiest trophy smallmouth bass fisheries in the world. Pound-for-pound smallmouth, sometimes called “smallies” or “bronzebacks”, are some of the hardest-fighting fish in freshwater and are extremely apt to eat a fly!

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According to the average of their simulation ensemble, by 2040–2049, the average annual water levels of Lake Superior, Michigan-Huron, and Erie are projected to increase by 0.19, 0.44, and 0.28 m, respectively, relative to 2010–2019 under the Representative Concentration Pathway (RCP) 8.5 scenario.

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In the first half of 2023, Lake Erie's water levels are expected to be lower than in 2022 by anywhere from 6 inches to 14 inches, according to predictions from the U.S. Army Corps of Engineers included in its December 2022 water level summary.

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