Historic bull trout distributions in the pacific northwest.
Western Native Trout Campaign
- The bull trout is a char most closely related to white-spotted char of northeast Asia
- Historic range from northern California (McCloud River) and Nevada to northern Canada, now extirpated from California
- One of the most restricted temperature tolerances of any North American salmonid: optimal growth at ~13°C, decline in feeding ≥16°C
- Exhibit diverse life histories, including resident, potamodromous, and anadromous forms
- Known for piscivory at large sizes
- Once maligned as “trash fish” subject of eradication efforts during early 20th century