Beluga whales in aquariums and marine parks face welfare deficits inherent to tank life, while sea sanctuaries offer a transformative alternative for animals who cannot be released.
Beluga welfare in captivity illustrates why even the most well-intentioned and technically sophisticated aquarium environments cannot meet the fundamental needs of large-brained, wide-ranging cetaceans. The acoustic environment alone is profoundly wrong: tanks reflect sound in ways that create constant acoustic distortion for animals whose social lives and navigation depend on sophisticated sound. The spatial constraints of even large tanks deny the daily movements that belugas undertake as part of normal life. Sea sanctuaries address both problems: natural seawater provides appropriate acoustics, natural organisms, and tidal variation, while vastly larger space allows greater behavioural freedom. The Iceland sanctuary demonstrates that the transition is feasible and that belugas benefit measurably from it, providing a model for other facilities.