| Impact ID | 9839 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | A study in a Minnesota Lake found that Flathead Catfish reduced the number of Common Carp Cyprinus carpio and bullheads Ameiurus spp. |
| Reference | 30296 |
| Cost | |
| Location | Minnesota, USA |