How Long Before These Salmon Are Gone? ‘Maybe 20 Years’

Warming waters and a series of dams are making the grueling migration of the Chinook salmon even more deadly — and threatening dozens of other species.

https://www.nytimes.com/2019/09/16/science/chinook-salmon-columbia.html?searchResultPosition=1

http://bren.ucsb.edu/research/2016Group_Projects/documents/YubaFinalReport_Thesis_Mar24.pdf