| Impact ID | 8566 |
| Impact Type | Commerce |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The mortality events of the 1980s are believed to have also been influenced by increased vulnerability due to food shortages, particularly alewives (Alosa pseudoharengus), high Chinook salmon density, and high parasite loads of Renibacterium salmoninarum. |
| Reference | 16560 |
| Cost | |
| Location | Lake Michigan, USA |