| Impact ID | 4804 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | D. villosus displaces Gammarus pulex, G. fossarum, and G. roeselii from shelter which are subsequently consumed by the fishes Neogobius melanostomus and Proterorhinus semilunaris, both of which have invaded the Great Lakers |
| Reference | 37162 |
| Cost | |
| Location | |