| Impact ID | 7131 |
| Impact Type | Water Quality |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Dissolved oxygen values declined by more than 50% when measured under the P. stratiotes cover, reaching only 2.5 mg/L, a critical value for fish survival. |
| Reference | 29781 |
| Great Lakes Region | No |
| Cost | |
| Location | Slovenia |
