| Impact ID | 9882 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In Spirit Lake, Washington, gut analysis revealed that Oncorhynchus mykiss have predated on Potamopyrgus antipodarum since 2015. Abundance of Potamopyrgus antipodarum in Oncorhynchus mykiss diet has increased since first discovered in 2015. |
| Reference | 44775 |
| Cost | |
| Location | Spirit Lake, Washington, USA |