| Impact ID | 3891 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Wild Chum Salmon have been reported to introduce two mortality inducing ectoparasitic protozoans, euryhaline Ichtyhyobodo salmonis and freshwater Trichodina truttae, into hatchery fish |
| Reference | 34953 |
| Cost | |
| Location | |