| Impact ID | 8230 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Likely correlated to Dreissena bugensis and declining late winter phytoplankton blooms and chlorophyll a concentrations in Lake Michigan from 2001 to 2008, there was a reported decline in cyclopoid and omnivorous calanoid copepod populations over this period |
| Reference | 24627 |
| Cost | |
| Location | Lake Michigan, USA |