| Specimen ID | 1633030 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | SD |
| County | Charles Mix |
| Locality | Pease Creek [Missouri River tributary, Lake Francis Case] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Fort Randall Reservoir |
| HUC8 Number | 10140101 |
| HUC10 Name | Pease Creek |
| HUC10 Number | 1014010116 |
| HUC12 Name | Lake Geddes-Pease Creek |
| HUC12 Number | 101401011604 |
| Map
NAS ARM
| |
| Collection Day | 17 |
| Collection Month | 10 |
| Collection Year | 2019 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | dispersed |
| Status | established |
| Comments | Zebra mussels have been found throughout much of the lake (reservoir). |
| Record Type | NAS sighting report |
| Verifier | South Dakota Game, Fish, and Parks |
| Freshwater/Marine | Freshwater |
