| Specimen ID | 242953 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | rostriformis |
| Subspecies | bugensis |
| Common Name | quagga mussel |
| State | CA |
| County | Imperial |
| Locality | Colorado River at Imperial Dam [just N of Yuma, AZ] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Imperial Reservoir |
| HUC8 Number | 15030104 |
| HUC10 Name | Martinez Lake-Colorado River |
| HUC10 Number | 1503010413 |
| HUC12 Name | Colorado River-Imperial Reservoir |
| HUC12 Number | 150301041311 |
| Map | |
| Collection Day | 14 |
| Collection Month | 2 |
| Collection Year | 2008 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | Mussels found were widely scattered with no clusters of over two individuals. Estimated age of at least 6 weeks. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Year Class | adult |
