| Impact ID | 6653 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | Direct competition for habitat has been found to occur between Ctenopharyngodon idella and other fish species, particularly bluegill Lepomis macrochirus. With their schooling habit, grass carp constantly invade and disturb bluegill spawning areas, consequently greatly reducing bluegill weight and numbers. |
| Reference | 21004 |
| Great Lakes Region | No |
| Cost | |
| Location | |
