Chinook Challenge
- February 15, 2018
- John Harrison
![None](/media/filer_public/64/68/6468fd64-613d-4a17-9e1b-47f178cd8705/chinookfemale1.jpg)
Report: Dams, altered habitat, the influence of some hatcheries -- all are affecting upper Columbia spring Chinook, which will not be recovered by supplementation alone.