| Impact ID | 5839 |
| Impact Type | Water Quality |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | Growing numbers of Cyprinus carpio has led to poor water quality of Groenvlei Lake located in Sedgefield, South Africa. |
| Reference | 39779 |
| Great Lakes Region | No |
| Cost | |
| Location | Groenvlei Lake in Sedgefield, South Africa |