The state Department of Fish and Game lifted a ban on retention of sockeye by sportfishermen along the Chilkoot River Tuesday, following what one biologist called a “truly remarkable” surge in the run.

A dismal return of 4,355 reds as of July 15 rocketed to 28,473 just six days later, including passage of 9,967 fish in one day, July 18.

“We’ve been tracking the run all season and the numbers have looked poor, then they…