"Sea lions are pinnipeds characterized by external ear flaps, long fore flippers, the ability to walk on all fours, and short, thick hair. Together with the fur seals, they comprise the family Otariidae, or eared seals." (Wikipedia)
The Stellar and California Sea Lions occupy the West Coast, as far as I can determine the main difference between them is size. I am betting these were Stellar Sea Lions.
Here is an article with more information about sea lions that live and/or visit the coast of British Columbia.
"Sea lions consume large quantities of food at a time and are known to eat about 5–8% of their body weight (about 15–35 lb (6.8–16 kg)) at a single feeding." (Wikipedia)