| Impact ID | 4237 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | C. cultriventris became superdominate (65-99% catch) in Dneprodzerzhinsk and Kremenchug reservoirs replacing bleak (Alburnus alburnus) and common roach (Rutilus rutilus) and have maintained dominate population levels for at least 40 years |
| Reference | 36119 |
| Cost | |
| Location | Ukraine |