Beluga Whales Struggle: Four Die After Rescue

A third beluga whale has died at Chicago's Shedd Aquarium, marking a tragic outcome for some of the animals rescued earlier this year. Osiris, a 26-year-old female, passed away on Monday, according to the aquarium. This follows the recent death of Jelly Bean, a beluga relocated to Spain's Oceanogràfic de València, less than a week prior.

Osiris was considered a whale of clinical concern since her arrival, experiencing nutritional and social progress but maintaining a closely monitored condition. Her caretakers observed rapid changes in her breathing and behavior, leading to swift decline despite lifesaving attempts. Similarly, Jelly Bean died suddenly after experiencing feeding difficulties.

These incidents underscore the vulnerability of beluga whales to environmental changes and stress. The rescued whales were part of a larger international effort involving 30 whales and dolphins moved from a now-closed Canadian marine park, Marineland in Ontario. Shedd Aquarium received 10 belugas and four dolphins, with other whales sent to facilities in Spain, Georgia, and Texas.

Earlier deaths at Shedd Aquarium included Peekachu and Rain in late August and early September. The animals' journey involved custom slings and temperature-controlled transport, with intensive monitoring by aquarium staff. Necropsies will be conducted to determine the exact causes of death for Osiris and other deceased whales. Experts express concern over the high mortality rate shortly after relocation, despite belugas' adaptability to confined spaces.

Beluga whales native to Alaska's Cook Inlet are classified as endangered, with populations declining significantly due to pollution and climate change. The health and adaptation challenges faced by these rescued whales are a significant concern for conservation efforts.