| Specimen ID | 1633960 |
| Group | Fishes |
| Genus | Gambusia |
| Species | affinis |
| Common Name | Western Mosquitofish |
| State | CA |
| County | Ventura |
| Locality | Arundell Barranca, at Camino Real Park |
| Mapping Accuracy | Accurate |
| HUC8 Name | Ventura |
| HUC8 Number | 18070101 |
| HUC10 Name | Rincon Creek-Frontal Pacific Ocean |
| HUC10 Number | 1807010102 |
| HUC12 Name | Arundell Barranca-Frontal Pacific Ocean |
| HUC12 Number | 180701010203 |
| Map | |
| Collection Day | 26 |
| Collection Month | 12 |
| Collection Year | 2019 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol | dispersed |
| Status | established |
| Comments | 2 large females and a school of smaller males in a deep pool under a bush |
| Record Type | NAS sighting report |
| Verifier | M. Neilson (USGS) |
| Freshwater/Marine | Freshwater |
| Number Collected | 10 |
| Number of Females | 2 |
| Photo | |