On the CR no ESA listed stock has ever recovered sufficiently to be delisted, and out of the original 5 stocks listed none has recovered and two have actually declined in number, and this is after spending a billion dollars in the name of recovery.
The reason is simple, dams and their operations kill 80% of the rivers salmon producing potential.
The denialists would like you to believe it's other factors, but the science says otherwise.
Hardly a road map to recovery, utter failure would be a better label.
Want to increase ESA stock populations?
Then start managing the river's flows in a more fish friendly manner, and remove the four outdated, inefficient, tax payer subsidized dams on the lower Snake River.