CHINESE MITTEN CRAB
The Chinese mitten crab, native to the Yellow sea between China and Korea, is one of the ten most unwanted species in the world. It was first reported in the Great Lakes in 1965 where it occasionally shows up in Lakes Ontario and Erie. It appeared in the St. Lawrence River in 2004. No freshwater crab species existed in North America before its arrival.
It can be found down to a depth of ten meters, in fresh or brackish waters in estuaries, lakes, rivers and wetlands. It can tolerate a wide range of temperatures and salinities and can easily survive in disturbed and polluted environments. It is a catadromous species that lives in freshwater and reproduces in saltwater.