Specimen Information

Dreissena polymorpha
Dreissena polymorpha
(zebra mussel)
Mollusks-Bivalves
Exotic

Specimen ID1421002
GroupMollusks-Bivalves
GenusDreissena
Speciespolymorpha
Common Namezebra mussel
StateTX
CountyWilliamson
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
Map
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Collection Day6
Collection Month11
Collection Year2017
Year AccuracyActual
Potential Pathwayshipping ballast water | hitch hiker fishing, boating
Statusunknown
Reference 1
Ref. Number:30764
Author:Texas Parks and Wildlife Department.
Date:2017
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
Freshwater/MarineFreshwater
Year Classveliger and juvenile


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Citation information: U.S. Geological Survey. [2018]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/22/2018].

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