| Impact ID | 2176 |
| Impact Type | Food Web |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | A 22-year presence of Silver Carp (Hypophthalmichthys molitrix) in the Illinois River coincided with a reduction in phytoplankton and a 90% reduction in zooplankton. |
| Reference | 31254 |
| Great Lakes Region | No |
| Cost | |
| Location | Illinois River |
