| Impact ID | 7729 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Potamopyrgus antipodarum can compete with native fish by consuming up to half of their food including caddisfly larvae, mayfly larvae, and chironomids. |
| Reference | 42479 |
| Cost | |
| Location | |