Specimen Information

Dreissena polymorpha
Dreissena polymorpha
(zebra mussel)

Specimen ID116429
Common Namezebra mussel
LocalityTennessee River (River Mile 424.7) at Nickajack Lock and Dam, near Chattanooga, TN
Mapping AccuracyAccurate
HUC8 NameGuntersville Lake
HUC8 Number06030001
HUC10 NameWidows Creek-Tennessee River
HUC10 Number0603000102
HUC12 NameJones Creek-Tennessee River
HUC12 Number060300010201
Collection Day8
Collection Month7
Collection Year1992
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
CommentsThe zebra mussels found numbered in the hundreds. Most were attached to concrete on the miter sill at the upstream lock entrance. Some were found in the lock chamber attached to concrete wall, rocks, metal bolts, and pipes.
Record TypePersonal communication
Disposalsample preserved
Museum Cat NumberTVA Biology Lab
VerifierTVA biologists
Number Collectedthsnds
Year Classadult
Size13 - 31 mm


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Citation information: U.S. Geological Survey. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [9/28/2023].

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