| Impact ID | 6505 |
| Impact Type | Water Quality |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In addition to shading, decaying mats of Ludwigia grandiflora cause deoxygenation of the water with potential damage to fish stocks and to other fauna. |
| Reference | 32935 |
| Great Lakes Region | No |
| Cost | |
| Location | France |
