| Specimen ID | 1758480 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | rostriformis |
| Subspecies | bugensis |
| Common Name | quagga mussel |
| State | CA |
| County | Los Angeles |
| Locality | Castaic Creek, downstream from the Castaic Lagoon outlet |
| Mapping Accuracy | Accurate |
| HUC8 Name | Santa Clara |
| HUC8 Number | 18070102 |
| HUC10 Name | Castaic Creek |
| HUC10 Number | 1807010203 |
| HUC12 Name | Lower Castaic Creek |
| HUC12 Number | 180701020306 |
| Map | |
| Collection Day | 25 |
| Collection Month | 2 |
| Collection Year | 2025 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | unknown |
| Comments | PCR and DNA sequencing performed by CDFW confirmed species to be quagga mussel (Dreissena rostriformis bugensis). |
| Record Type | Personal communication |
| Verifier | Genetic verification, California Department of Fish and Wildlife |
