| Impact ID | 4616 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Phalaris arundinacea introduction changed the habitat in western Washington state, leading to the stranding death of over 150 endangered Coho salmon (Oncorhynchus kisutch). |
| Reference | 36935 |
| Cost | |
| Location | western Washington state |