Specimen Information

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

Specimen ID238682
GroupMollusks-Bivalves
GenusDreissena
Speciespolymorpha
Common Namezebra mussel
StatePA
CountyTioga
LocalityCowanesque Lake (West Launch/South Shore Recreation Area) [just west of Lawrenceville]
Mapping AccuracyAccurate
HUC8 NameTioga
HUC8 Number02050104
HUC10 NameCowanesque River
HUC10 Number0205010408
HUC12 NameLower Cowanesque River
HUC12 Number020501040809
Map
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Collection Day17
Collection Month5
Collection Year2007
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
Statusestablished
CommentsMany found under the boat dock only; no more found after a brief search of the immediate area; population may be several years old.
Record TypePersonal communication
VerifierDr. Ed Mastellar, (retired) Penn State Univ.
Freshwater/MarineFreshwater
Size1.5 in.


Disclaimer:

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. [2020]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/3/2020].

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.