Invasive Species

Credit US Department of Agriculture

The Great Lakes ecosystem has been severely damaged by more than 180 invasive and non-native species. Species such as the sea lamprey, zebra mussel and alewife degrade habitat, out-compete native species and damage the fishing industry.

Ways to Connect

Shutterstock/Vladimir Wrangel

Researchers recently announced the discovery of over 7,000 grass carp eggs in a Lake Erie tributary.  The good news? This isn’t the Asian carp species we’re trying to prevent from entering the Great Lakes.  The bad news? Grass carp pose a different threat. 

Asian carp is a catch-all term for four different species of invasive carp: black, grass, silver, and bighead. 

USDA

The US Department of Agriculture is asking residents along the Great Lakes corridor and beyond to watch out for an invader- the Asian Longhorned Beetle (ALB).


Invasive or not? A Great Lakes puzzle

Aug 23, 2017
Bloody red shrimp / USGS

Around the Great Lakes, millions of dollars are spent to fight invasive species like Asian carp. They cause a lot of damage. But when scientists discover a new animal or plant in the region, it’s not always clear if it’s harmful - or helpful.

U.S. Geological Survey

The Asian carp captured this summer near the southern tip of Lake Michigan -- triggering a big scare -- apparently slipped past electric barriers.

EPA

A new non-native species has been found in western Lake Erie, the EPA said Monday.

It's named Brachionus leydigii. And it's a type of zooplankton, which means it could be food for lots of fish.

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