The short-handed Ducks were playing without several key offensive players, including leading-scorer Rickard Rakell, who missed his third straight game with an upper-body injury.
“We’re facing a strange situation with a lot of adversity,” Vermette said. “We’re taking a lot of pride as a group and trying to battle through it.”
Gibson’s biggest save came midway through the second period when he stopped Jaden Schwartz on a breakaway.
The Blues had won their last four home games against the Ducks, but looked flat throughout most of the contest.
“A game like tonight, penalty kill could have found a way to win a game for us,” said Brodziak, who is on the PK unit. “Instead, we found a way to lose a game.”
The Blues still lead the Western Conference with 35 points.
“I don’t think we got to our game at all tonight,” St. Louis winger Alexander Steen said. “We didn’t play the way we had played previously and it bit us.”
NOTES: St. Louis C Patrik Berglund made his season debut after missing the first 24 games with a dislocated left shoulder. … The Ducks have scored first in 11 of 25 games. … St. Louis still has points in 12 of its last 15 home games against Anaheim.
Ducks: Continue a six-game road trip at Columbus on Friday.