Specimen Information

Procambarus clarkii
Procambarus clarkii
(Red Swamp Crayfish)
Native Transplant

Specimen ID263464
Common NameRed Swamp Crayfish
Localitya private subdivision pond [Esquire Estates], Germantown
Mapping AccuracyAccurate
HUC8 NameMilwaukee
HUC8 Number04040003
HUC10 NameMenomonee River
HUC10 Number0404000304
HUC12 NameVillage of Menomonee Falls-Menomonee River
HUC12 Number040400030401
Collection Month8
Collection Year2009
Year AccuracyActual
Potential Pathwayreleased
Reference 1
Ref. Number:27922
Author:Wisconsin Department of Natural Resources (WI DNR)
Title:New invasive crayfish found in Wisconsin
Publisher:Wisconsin Department of Natural Resources
Reference 2
Ref. Number:29172
Author:Bunk, H., and S. Van Egeren
Title:Attempted Eradication of Ambitious Architects: Procambarus clarkii, The Red Swamp Crayfish in three SE Wisconsin Ponds – Successes and Failures
Publisher:Upper Midwest Invasive Species Conference
Reference 3
Ref. Number:30321
Author:Maureen Ferry
Title:Personal communictaion, false listing of red swamp in Wisconsin
CommentsProcambarus clarkii were established in three ponds in 2009. An eradication program was started in November by Wisconsin DNR of the same year with sodium hypochlorite and continued in 2010. Physical measures included bank manipulation, placement of bank barriers and in some cases, filling of the pond were untaken. Major construction and treatment efforts were completed in September of 2013 (Bunk and Van Egeren 2016). The ponds may still hold a very small population of the red swamp crayfish as a single emaciated individual was found in summer 2017. Wisconsin DNR is continuing to monitor the ponds for the next several years for additional Red Swamp Crayfish sightings (Maureen Ferry, WDNR personal communication 2017).
Record TypePersonal communication
Earliest Recordstate
VerifierJoan Jass, Milwaukee Public Museum taxonomist
Number Collected1000
Sizeup to 8 inches
Procambarus clarkii


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/30/2024].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.