IUCN threat status:

Least Concern (LC)


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Range Description

This species is widespread in North America occurring in the Atlantic watershed in Connecticut, District of Columbia, Delaware, Massachusetts, Maryland, Maine, New Brunswick, New Hampshire, New Jersey, New York, Pennsylvania, Qubec, Rhode Island, Virginia, Vermont and West Virginia (Fetzner 2008, Hobbs 1974, Jezerinac et al. 1995, Souty-Grosset et al. 2006). This species was introduced to Europe in the 1890s where it is now widespread (Jezerinac et al. 1995, Souty-Grosset et al. 2006). This species was originally introduced into Europe to replace diminished populations of the Signal crayfish, but due to its small size that replacement failed (Black and Holdich 2007).

The Extent of Occurrence (EOO) of this species has been estimated to exceed 2 million km2.


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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