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| NAS - Nonindigenous Aquatic Species |
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Common Name: virile crayfish
Taxonomy: available through 
Size: can reach 5 in
Native Range:
Missouri, upper Mississippi, lower Ohio, and Great Lakes drainages.
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 Alaska |
Hawaii |
Caribbean |
Interactive maps: Continental US, Alaska, Hawaii, Caribbean
Nonindigenous Occurrences: Established in San Francisco Bay, California (Ruiz 2000).Unspecified locations in Connecticut, Maine, Massachusetts, New Hampshire, Pennsylvania, Rhode Island, Vermont, and Virginia; many creeks in Maryland, New York, and West Virginia.
Means of Introduction: Probable bait bucket introduction.
Status:
Impact of Introduction: Unknown.
Remarks: Found in streams with moderate flow and turbidity, abundant cover, stable water levels. Breeding occurs in July and eggs are laid in the spring. Potential as a human food resource.
References
Other Resources:
Orconectes virilis (Global Invasive Species Database)
Author: Amy Benson
Revision Date: 4/11/2006 Citation for this information:
Amy Benson. 2010. Orconectes virilis. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=215> Revision Date: 4/11/2006
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