| Impact ID | 3533 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Laboratory |
| Impact Description | Researchers speculated that cisco native to Lake Michigan, the bloater (Coregonus hoyi) evolved fewer and shorter gill rakers and shifted to benthic habitat and diet as a result of competition with alewife. |
| Reference | 24205 |
| Cost | |
| Location | Lake Michigan, USA |