| Impact ID | 2047 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | Potamopyrgus antipodarum has become the most common snail present in areas of the Snake River, and the dominant gastropod species in many habitat types. |
| Reference | 9286 |
| Great Lakes Region | No |
| Cost | |
| Location | |
