| Impact ID | 2040 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | Potamopyrgus antipodarum in the Snake River Basin (Idaho, USA) were found in high densities and outnumbered native snails in three different habitats, possibly out competing the native threatened Hydrobiid T. serpenticola. |
| Reference | 13759 |
| Great Lakes Region | No |
| Cost | |
| Location | |
