<P> In 1996, the Vancouver Park Board instituted a municipal bylaw that prevents the Vancouver Aquarium from capturing cetaceans from the wild for display purposes, and only obtain cetaceans from other facilities if they were born in captivity, captured before 1996 or were rescued and deemed un-releasable after this date . </P> <P> On June 15, 2006 Canada Post issued a 51 cent domestic rate stamp to commemorate the 50th anniversary of the Aquarium . </P> <P> For many years, the primary attraction for visitors was the orca show . The Aquarium was the first to capture and display a killer whale, Moby Doll, in a pen at Burrard Drydocks, for 3 months in 1964 . Since then, it was home to Skana, Hyak II, Finna, Bjossa, and three of Bjossa's calves . When Finna died and Bjossa was left without other orca companions, the Aquarium attempted to acquire one or more female orcas from other marine parks . However, no suitable companions were found, and Bjossa was moved to SeaWorld, San Diego, in April 2001 where she later died due to a chronic respiratory illness . The Aquarium has since moved to emphasize the educational aspects of the displays rather than the public spectacle of the shows . They have also highlighted their research, rescue and rehabilitation efforts . </P> <P> The aquarium has played a significant role in the research of wild orcas in BC . John Ford, a respected researcher who focuses on orca vocalizations, worked there for many years and they still fund a lot of the study . The Wild Killer Whale Adoption Program, which funds research, is also run out of the aquarium . </P>

When did vancouver aquarium get rid of orcas