Specimen Information

Dreissena polymorpha
Dreissena polymorpha
(zebra mussel)

Specimen ID1421002
Common Namezebra mussel
LocalityNorth Fork San Gabriel River at Lake Georgetown [just NW of Georgetown]
Mapping AccuracyAccurate
HUC8 NameSan Gabriel
HUC8 Number12070205
HUC10 NameNorth Fork San Gabriel River
HUC10 Number1207020501
HUC12 NameMiddle Fork San Gabriel River-North Fork San Gabriel River
HUC12 Number120702050106
Collection Day6
Collection Month11
Collection Year2017
Year AccuracyActual
Potential Pathwayhitch hiker fishing, boating | hitch hiker fishing, boating
Reference 1
Ref. Number:30764
Author:Texas Parks and Wildlife Department.
Title:Zebra mussels spreading at lakes Georgtown, Livingston.
Publisher:Texas Parks and Wildlife Department
CommentsVeligers found in water samples Oct. 6, 2017.
Record TypeLiterature
VerifierBrazos River Authority / Texas Parks and Wildlife
Year Classveliger and juvenile

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logoU.S. Department of the Interior | U.S. Geological Survey
URL: https://nas.er.usgs.gov
Page Contact Information: Pam Fuller - NAS Program (pfuller@usgs.gov)
Page Last Modified: Wednesday, October 24, 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 [1/20/2019].

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 Pam Fuller. For queries involving invertebrates, contact Amy Benson.