| Impact ID | 7388 |
| Impact Type | Habitat Alteration |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Dreissena polymorpha beds change the substrate structure, which provide more colonization area for gastropods, amphipods and many other benthic taxa. |
| Reference | 42296 |
| Great Lakes Region | No |
| Cost | |
| Location | |
