| Impact ID | 7153 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Stratiotes aloides has formed dense colonies with large numbers (22,000 plants in seven colonies) in Trent River, Ontario. |
| Reference | 18807 |
| Great Lakes Region | No |
| Cost | |
| Location | |
