| Impact ID | 5767 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | While American eels (Anguilla rostrata) infected by Anguillicola crassus did not show signs of severe infection, they did show signs of damage to the swim bladders. Evidence of damage includes opacity, black pigments, and remnants of dead worms. |
| Reference | 40150 |
| Cost | |
| Location | Harper's Ferry, West Virginia |