Specimen Information

Ctenopharyngodon idella var. diploid
Ctenopharyngodon idella var. diploid
(Grass Carp (diploid))

Specimen ID1524510
Common NameGrass Carp (diploid)
CountySan Juan
LocalityColorado River, at Lake Powell, near Castle Butte
Mapping AccuracyAccurate
HUC8 NameUpper Lake Powell
HUC8 Number14070001
HUC10 NameRed Canyon
HUC10 Number1407000107
HUC12 NameRainbow Canyon-Red Canyon
HUC12 Number140700010706


Collection Day13
Collection Month6
Collection Year2015
Year AccuracyActual
Potential Pathwaystocked for biocontrol | dispersed
CommentsBrandenburg, W.H., T.A. Francis, D.E. Snyder, K.R. Bestgen, B.A Hines, W.D. Wilson, S. Bohn, A.S. Harris, and S.L. Clark Barkalow. 2018. Discovery of grass carp larvae in the Colorado River arm of Lake Powell. North American Journal of Fisheries Management. DOI: 10.1002/nafm.10258 [Confirmed through genetics]
Record TypePersonal communication
VerifierU.S. Fish and Wildlife Service
Number Collected154
Year Class0
Size7.1-8.5 mm SL

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Take Pride in America logoU.S. Department of the Interior | U.S. Geological Survey
URL: https://nas.er.usgs.gov
Page Contact Information: Matthew Neilson - NAS Program (mneilson@usgs.gov)
Page Last Modified: Wednesday, October 10, 2018


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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/16/2019].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.