A nine-year-old male beluga whale named Cyprus died at SeaWorld San Diego after being relocated from the closed Marineland of Canada facility in Ontario. The whale died shortly after veterinary teams discovered his intestinal tract was not functioning normally, a condition the park identified as a sign of life-threatening illness.
Cyprus arrived at the San Diego facility on August 22, 2026. According to a statement from SeaWorld, the whale had been eating consistently and interacting with trainers until Saturday, October 17, 2026, when he stopped eating. Staff worked through the night to treat the animal, but he died shortly thereafter. The park noted that beluga whales can sometimes mask underlying health issues.
This death marks the sixth among whales relocated from Marineland. Four other whales died at the Shedd Aquarium in Chicago, and one died at Oceanogràfic València in Spain. Marineland closed in 2024 following financial difficulties. Prior to the closure, the park informed Canada’s fisheries ministry that the animals faced potential euthanasia if they were not rehomed due to a lack of funding for their welfare and security.
For those following animal welfare and zoo management, this event highlights the risks associated with the large-scale relocation of marine mammals. The transition involved moving animals weighing up to 1,500 kilograms (approximately 3,300 pounds) across international borders. While the exact number of remaining whales from the Marineland group was not reported, the death of a sixth whale indicates that a significant portion of the relocated population has not survived the transition period.
SeaWorld San Diego stated it will continue to monitor two other rescued belugas currently at the facility, which remain in stable health. The park did not provide a specific date for a final necropsy report, which is the standard procedure for determining a precise cause of death in animals. Future policy regarding the relocation of marine mammals from distressed facilities may be influenced by the outcome of these transfers and the survival rates of the animals involved.