| Impact ID | 2791 |
| Impact Type | Food Web |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Mean total length of adult freshwater drum Aplodinotus grunniens has decreased since the zebra mussel Dreissena polymorphainvaded Lake Erie where mussels comprised more than two-thirds of stomach samples in these fish. Freshwater drum may not benefit having zebra mussels as a staple of their diet. |
| Reference | 20548 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Lake Erie |
