| Specimen ID | 163126 |
| Group | Fishes |
| Genus | Gambusia |
| Species | affinis |
| Common Name | Western Mosquitofish |
| State | MT |
| County | Granite |
| Locality | Bearmouth, Granite County, high-altitude, thermal spring fed pond in the Columbia River drainage |
| Mapping Accuracy | Accurate |
| HUC8 Name | Flint-Rock |
| HUC8 Number | 17010202 |
| HUC10 Name | Clark Fork River-Bear Creek |
| HUC10 Number | 1701020206 |
| HUC12 Name | Clark Frok River-Garden Gulch |
| HUC12 Number | 170102020605 |
| Map | |
| Collection Day | 15 |
| Collection Month | 7 |
| Collection Year | 1961 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol |
| Status | established |
| Reference 1 |
| Ref. Number: | 813 |
| Author: | Brown, C.J.D., and A.C. Fox |
| Date: | 1966 |
| Title: | Mosquito fish (Gambusia affinis) in a Montana pond |
| Journal: | Copeia |
| Volume: | 1966 |
| Issue: | 3 |
| Pages: | 614-616 |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Number Collected | 544 |
| Number of Breeding Females | 461 |
| Number of Breeding Males | 83 |
