The welfare of captive orca has been a defining issue in zoo and aquarium ethics. Evidence of profound welfare compromise has driven legislative change and public opinion.
Orca welfare in captivity is fundamentally compromised. The combination of tiny pools relative to wild ranges, disrupted family structures, and the psychological complexity of these animals creates chronic suffering that cannot be adequately mitigated. The collapsed dorsal fin - essentially universal in captive orca - reflects physiological damage from confinement. The ethical consensus has shifted decisively toward phasing out captive orca display.