The 29-year-old from Montreal has six assists in 31 games this season.
He leads the Canucks with 3.1 hits per game and ranks sixth in blocks per game with 1.4.
2 more years of the Bulldog. pic.twitter.com/J4wY4BeVZx
— Vancouver Canucks (@Canucks) February 28, 2018
The five-foot-10, 200-pound defenceman has one goal and 16 assists in 125 career NHL games, all with Vancouver.
Biega has also played 348 American Hockey League games with Utica, Rochester and Portland. The defenceman captained the Comets during the 2015-16 season and served as alternate captain the year prior.
"Alex has an incredible work ethic and is always prepared," general manager Jim Benning said in a release. "He sets an example for our younger players to follow. We’re pleased to have Alex as part of our team moving forward."
Biega was originally drafted by Buffalo in the fifth round, 147th overall, at the 2006 NHL draft.