| Impact ID | 7805 |
| Impact Type | Predation/Herbivory |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Brown trout (Salmo trutta) has been implicated in reducing native fish populations, especially other salmonids, through predation, displacement, and food competition. |
| Reference | 635 |
| Cost | |
| Location | |