| Impact ID | 2107 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | Redside Shiner (Richardsonius balteatus) declined when the Red Shiner became common in the Green River near the boundary of Dinosaur National Monument, Utah |
| Reference | 952 |
| Great Lakes Region | No |
| Cost | |
| Location | |
