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Are there jelly fish in Lake Erie?

Are there jelly fish in Lake Erie?
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Are there jelly fish in Lake Erie? 

A recent video posted to Facebook prompted a lot of discussion on the topic. 

Jelly fish are typically found in saltwater. 

However, there are, in fact, jelly fish in Lake Erie, officials from the Ontario Ministry of Natural Resources and Forestry say. The Craspedacusta sowerbyi species is a type of freshwater jelly fish. 

According to 13ABC in Toledo, some biologists call them an invasive species. Others say they fall into the "non-native species" realm.

Either way, the jelly fish have been living in the Great Lakes ecosystem for decades. They've just recently been reported in Lake Erie.

The jelly fish range in size from 5 to 25 mm in diameter, similar to the size of a penny.

They are not considered dangerous to humans but they can sting and paralyze small fish.