Modelling Shows Upper Columbia Spring Chinook Remain Among Most “At-Risk” October 19, 2020 John Harrison Life cycle modelling using PIT tag data shows the fish remain at critically low numbers despite recovery effort.
No Gain September 14, 2016 John Harrison Researchers have compiled volumes of data on upper Columbia spring Chinook salmon. Now they are working to better use it to develop recovery projects that address problems that appear to be limiting recovery.