| Impact ID | 3527 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Alewife (Alosa pseudoharengus) has been shown to cause thiamine deficiency and, consequently, early mortality syndrome (EMS) in populations of alewife predators. EMS and its adverse effects on recruitment and fish populations is well documented for Atlantic salmon. |
| Reference | 24211 |
| Cost | |
| Location | Great Lakes, USA |