| Specimen ID | 116429 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | TN |
| County | Marion |
| Locality | Tennessee River (River Mile 424.7) at Nickajack Lock and Dam, near Chattanooga, TN |
| Mapping Accuracy | Accurate |
| HUC8 Name | Guntersville Lake |
| HUC8 Number | 06030001 |
| HUC10 Name | Widows Creek-Tennessee River |
| HUC10 Number | 0603000102 |
| HUC12 Name | Jones Creek-Tennessee River |
| HUC12 Number | 060300010201 |
| Map | |
| Collection Day | 8 |
| Collection Month | 7 |
| Collection Year | 1992 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | The 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 Type | Personal communication |
| Disposal | sample preserved |
| Museum Cat Number | TVA Biology Lab |
| Verifier | TVA biologists |
| Freshwater/Marine | Freshwater |
| Number Collected | thsnds |
| Year Class | adult |
| Size | 13 - 31 mm |
