| Specimen ID | 1886517 |
| Group | Mollusks-Bivalves |
| Genus | Limnoperna |
| Species | fortunei |
| Common Name | Golden Mussel |
| State | CA |
| County | Contra Costa |
| Locality | San Joaquin River |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Joaquin Delta |
| HUC8 Number | 18040003 |
| HUC10 Name | Middle River-San Joaquin River |
| HUC10 Number | 1804000309 |
| HUC12 Name | Markley Canyon-San Joaquin River |
| HUC12 Number | 180400030907 |
| Map | |
| Collection Day | 29 |
| Collection Month | 7 |
| Collection Year | 2025 |
| Year Accuracy | Actual |
| Potential Pathway | dispersed | hitch hiker on small watercraft |
| Comments | New Bridge Marina, on the underside of the slips closest to the mouth of the harbor. Surveyed 190m of dock. Mussels were found near the inlet from the main channel. |
| Record Type | NAS sighting report |
| Verifier | Jessie Trueman (California Department of Fish and Wildlife) |
| Freshwater/Marine | Freshwater |
| Number Collected | 3 |
| Photo | |
