A humpback whale affectionately known as “Timmy,” which had become stranded off Germany’s Baltic coast and sparked a high-profile rescue effort, has been confirmed dead off the Danish island of Anholt, bringing to an end a controversial rescue attempt.

The carcass, first spotted on Thursday as it was scavenged by seagulls, drew immediate attention in Germany as questions arose over whether it was the same male whale that had for weeks captivated the public’s attention.

Initial plans to confirm the identity through a tissue sample were overtaken by the discovery on Saturday of a GPS tracker attached to the whale.

The device matched one installed by a private initiative that had transported the animal into the North Sea in early May, releasing it about 70 kilometres off the Danish coast, environmental authorities in Denmark and Germany said.

Marine experts warned that the humpback’s poor condition after being stranded left it with little chance of long-term survival and cautioned that moving it could do more harm than good. But the private group behind the effort pressed ahead regardless, spending significant sums that were not disclosed.

After the whale’s fate was confirmed, the rescue initiative thanked volunteers and supporters.

“Our thanks also go to all the volunteers, supporters, specialists, and response teams who, over the past few weeks, did everything in their power to give this animal a chance at survival,” a spokeswoman said.

Danish authorities said there were currently no plans to remove the carcass, which lies about 75 metres from the beach, noting it lies well offshore of the island and poses no disturbance.

A troubled journey

The 12-metre, 12-ton humpback whale, which came to be known as “Timmy” after the nickname caught on with the public, was first spotted in early March in the Baltic Sea, appearing in the German port of Wismar and nearby coastal areas, where it repeatedly became entangled in fishing gear.

Rescue teams and conservation groups made several attempts to free it from nets and lines as it moved along Germany’s northern coast, drawing growing public attention.

By late March, the whale began stranding repeatedly in shallow waters — near the small town of Timmendorfer Strand, from which it got its nickname, and in the Wismar Bay area.

Despite multiple rescue efforts, including digging channels and trying to guide it back to deeper water, the animal remained weakened, disoriented and unable to swim out to the open sea.

The animal’s plight became national news as public debate swirled over what should or shouldn’t be done for Timmy.

Experts advised against further intervention, suggesting the whale may have been seeking a place to die. Nevertheless, in mid-April authorities approved a privately funded rescue attempt — backed in part by a founder of the consumer electronics retailer MediaMarkt — to move the animal to open sea by barge, and it was released into the North Sea on May 2.

Critics denounce ‘absurd’ rescue saga

Despite the outcome, Till Backhaus, environment minister of the north-eastern German state of Mecklenburg-Vorpommern and a key figure in the saga, defended the decision to allow the attempt, saying many had hoped the whale could be saved and that scientists had not completely ruled out its survival.

“I consider it entirely human to take even the smallest chance when it comes to a life,” Backhaus said, adding that the case should serve as a reminder of the need to take nature conservation and climate change more seriously.

Environmental group Greenpeace said the whale’s death marked the end of what it called an “absurd” episode, arguing that the lesson was to heed scientific advice and focus attention on broader threats to marine life, including whales and dolphins dying as bycatch in fishing nets.