| Impact ID | 6850 |
| Impact Type | Commerce |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Rudd (Scardinius erythrophthalmus) has been forced to move in weeded areas and has been disappearing everywhere in freshwater lakes in Ireland due to Rutilus rutilus. |
| Reference | 33570 |
| Cost | |
| Location | Ireland |