| Impact ID | 4516 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In three different Swedish lakes, Elodea canadensis significantly outgrew all but one native species, growing dense enough to block light, limiting penetration to native species. |
| Reference | 36401 |
| Great Lakes Region | No |
| Cost | |
| Location | Sweden |
