| Impact ID | 3540 |
| Impact Type | Commerce |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Alewife mortality events that littered the beaches of the Great Lakes with rotting fish happened with such frequency that they became known as “the annual spring and summer die-off." |
| Reference | 24204 |
| Cost | |
| Location | Great Lakes, USA |