| Impact ID | 7730 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Potamopyrgus antipodarum can consume up to half of food resources in a waterway which can reduce populations of invertebrates such as caddisflies and mayflies. |
| Reference | 42480 |
| Cost | |
| Location | |