| Specimen ID | 1740345 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | IA |
| County | Marion |
| Locality | Red Rock reservoir at Elk Rock State Park boat dock |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Red Rock |
| HUC8 Number | 07100008 |
| HUC10 Name | Calhoun Creek-Des Moines River |
| HUC10 Number | 0710000815 |
| HUC12 Name | Teter Creek-Des Moines River |
| HUC12 Number | 071000081508 |
| Map | |
| Collection Day | 13 |
| Collection Month | 9 |
| Collection Year | 2024 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | unknown |
| Comments | One zebra mussel collected on settlement sampler attached to Elk Rock State Park boat dock. |
| Record Type | NAS sighting report |
| Verifier | Joel Born, Iowa Department of Natural Resources |
| Number Collected | 1 |
