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Beluga Whale Trapped in River Seine Euthanized During Rescue Due to Health Difficulties

A beluga whale is seen swimming up France's Seine river, near a lock in Courcelles-sur-Seine, western France on August 5, 2022. - The beluga whale appears to be underweight and officials are worried about its health, regional authorities said. The protected species, usually found in cold Arctic waters, had made its way up the waterway and reached a lock some 70 kilometres (44 miles) from Paris. The whale was first spotted on August 2, 2022 in the river that flows through the French capital to the English Channel, and follows the rare appearance of a killer whale in the Seine just over two months ago.

JEAN-FRANCOIS MONIER/AFP via Getty

A beluga whale that strayed into the River Seine on Aug. 2 and became stuck in the French waterway died following efforts to save the animal.

On its way to the arctic, the marine mammal went off route and got stuck in a freshwater lock at St.-Pierre-La-Garenne, approximately 45 miles west of Paris, on Aug. 2, CNN reported.

After spotting the lost beluga, experts attempted to feed the animal but failed each time.

On Tuesday night, rescue efforts to remove the whale from the river began. More than 20 divers and an overall team of 80 people gathered to save the over 1760-pound, 13-foot-long animal.

On Wednesday morning, the whale was lifted from the water by a net and placed on a barge with veterinarians, who monitored the beluga's condition.

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The whale was then moved to a refrigerated truck to be taken to a saltwater port in Normandy over 90 miles away, the Associated Press reported.

Rescuers pull up a net after they rescued a beluga whale stranded in the River Seine to bring it into a truck to drive it towards Ouistreham (Calvados), at Notre Dame de la-Garenne, northern France, on August 10, 2022. - French marine experts launched an ambitious operation on August 9 to rescue an ailing beluga whale that swam up the Seine river, to return it to the sea. The four-metre (13-foot) cetacean, a protected species usually found in cold Arctic waters, was spotted a week ago heading towards Paris, and is now some 130 kilometres inland.

JEAN-FRANCOIS MONIER/AFP via Getty

During the whale's journey to the sea, the animal developed serious breathing difficulties.

"The veterinarians noted a deterioration in its condition and its respiratory activities," said Florence Ollivet-Courtois, one of the veterinarians assisting with the rescue operation, in a video shared on Twitter by the French department of Calvados. "The animal was in anoxia and was not ventilating sufficiently."

After assessing the animal's condition, the veterinarians decided to euthanize the beluga due to its poor quality of life.

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"The suffering being obvious for the animal, we decided that it was not appropriate to release it and that it was necessary to proceed with its euthanasia," Ollivet-Courtois shared.

Rescuers pull up a net as they rescue a beluga whale stranded in the River Seine at Notre Dame de la-Garenne, northern France, on August 9, 2022. - French marine experts launched an ambitious operation on August 9 to rescue an ailing beluga whale that swam up the Seine river, to return it to the sea. The four-metre (13-foot) cetacean, a protected species usually found in cold Arctic waters, was spotted a week ago heading towards Paris, and is now some 130 kilometres inland.

JEAN-FRANCOIS MONIER/AFP via Getty

Lamya Essemlali, president of Sea Shepherd France, told Reuters that the whale would not have survived much longer in the river water.

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After the beluga's passing, the Sea Shepherd France also shared the news on Twitter.

"It is with heavy hearts that we announce that the beluga did not survive the translocation which was risky, but essential to give an otherwise doomed animal a chance," the nonprofit announced.

"We are devastated by this tragic outcome that we knew was very likely, but we thank all those who worked for this unprecedented mobilization: firefighters, caregivers, volunteers, supporters, and @isadorliat sub-prefect of Eure," Sea Shepherd France added.