| Impact ID | 5428 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Gambusia affinis is also responsible for the elimination of the least chub (Iotichthys phlegethontis) in several areas of Utah |
| Reference | 1639 |
| Cost | |
| Location | Utah |