The solitary harbour porpoise is now behind the scenes as there are currently northern fur seals in this exhibit. They join the harbour seals and Steller's sea lions in an adjacent exhibit as part of the 3 pinniped species at the aquarium.
@Animal: I highly doubt it, but the Vancouver Aquarium must have an extensive off-exhibit area as there are always marine mammals behind the scenes. Recently a second harbour porpoise was rescued but it died after about 3 weeks and I believe that the first harbour porpoise is now in a behind the scenes pool. There are at least 5 northern fur seals in this pool (with more off-exhibit), and a second pool has at least 3-4 Steller's sea lions (more are also off-exhibit) and 3 harbour seals (those are always being rescued and returned to the wild). The pinnipeds on view to the public are usually only about half of the seals and sea lions actually at the aquarium.
No worries @DavidBrown as you found your answer, but I will point out that the aquarium had two Harbour Porpoises for a long time and over the years I saw at least one specimen on exhibit on countless occasions. Now that both have died, and the Beluga Whales have also died, the aquarium is left with a solitary cetacean (Pacific White-sided Dolphin) and lots of pinnipeds (Pacific Walrus, Steller's Sea Lion, Northern Fur Seal, Common/Harbour Seal) plus Southern Sea Otters and African Penguins in the outdoor zone.
