| Specimen ID | 274414 |
| Group | Fishes |
| Genus | Gambusia |
| Species | affinis |
| Common Name | Western Mosquitofish |
| State | GU |
| Locality | Masso River [unspecified location] |
| Mapping Accuracy | Approximate |
| HUC8 Name | Guam |
| HUC8 Number | 22010000 |
| HUC10 Number | 2201000003 |
| Map | |
| Collection Day | 28 |
| Collection Month | 4 |
| Collection Year | 2004 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol |
| Status | unknown |
| Reference 1 |
| Ref. Number: | 19675 |
| Author: | Walsh, S. |
| Date: | 2010 |
| Title: | Aquatic invasive species of Guam. |
| Publisher: | USGS Southwest Biological Sciences Center. |
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| Comments | dam provides a recreational reservoir, moderately developed area, metallic debris in river below reservoir, tadpoles not common in river, surveyed from below reservoir to bridge behind GSA |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
