| Impact ID | 9133 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | A study of fish diets suggest a significant diet overlap between zander (Sander lucioperca) and European catfish (Silurus glanis), indicating competition for food in areas that they co-occur. |
| Reference | 34238 |
| Cost | |
| Location | Kaniv Reservoir, Ukraine |