| Impact ID | 7129 |
| Impact Type | Water Quality |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | A study in Nigeria found that dense mats of Pistia stratiotes can cause the depletion of dissolved oxygen and more acidic water. |
| Reference | 42135 |
| Great Lakes Region | No |
| Cost | |
| Location | Oba Lake, Nigeria |