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Dead juvenile humpback whale washes up on UK beach

This humpback whale washed up dead on the beach at Blyth in Northumberland, shown here on March 19, 2021.
This humpback whale washed up dead on the beach at Blyth in Northumberland, shown here on March 19, 2021. (Image credit: Owen Humphreys/PA Wire/PA Images)

A partially decomposed 36-foot-long (11 meters) juvenile humpback whale carcass washed up on a beach in the U.K. weeks after the animal was first spotted dead in the water.

The whale, nicknamed Humpy, washed up at 7:15 a.m. local time Friday (March 19) on England's Northumberland coast. Humpy was first identified in the area on Jan. 31 by the U.K. Humpback Catalogue, a citizen science project that identifies humpbacks in British waters from photographs sent by the public. 

Humpy was confirmed dead on March 5 after the body was found caught in some ropes. Now that the whale's body has washed ashore, the local council has warned people to avoid the area until the body can be removed, because the "partially decomposed carcass" is emitting an "unpleasant smell," according to the BBC.

Related: 13 bizarre things that washed up on beaches

"They do have a bit of a unique stench that seems good at clinging to clothes afterwards," Dan Jarvis, a field support officer for the British Divers Marine Life Rescue (BDMLR) who wasn't involved in the incident, told Live Science. "Given the size of the animal, the smell will envelop a fairly large area, especially downwind."

Humpy is the third humpback whale to be found dead in the U.K. this year; one was spotted in Scotland on March 5, and another washed up in Cornwall on March 12, according to the U.K. Humpback Catalogue.

On the rise 

The number of humpback whales in British waters has been on the rise in recent years because of increased stocks of herring, which are a favorite of ocean mammals. Last year, 119 humpback sightings were reported in the U.K. — the third-highest number of sightings on record, according to data from the Sea Watch Foundation.

"With more animals visiting our waters, it's inevitable that we will also see more strandings," Jarvis said.

Populations have rebounded after decades of intensive whaling in the mid-20th century and ocean conditions have changed rapidly due to climate change, both of which may also explain why more humpbacks are frequenting U.K. waters, Jarvis said. 

Getting tangled up 

Scientists don't know why Humpy died, and the body is too decomposed for a full necropsy to take place, according to the BBC.  

Although the body was tangled in ropes, it is unclear if entanglement killed Humpy or if the carcass became entangled after death. However, entanglement is generally a big problem for humpbacks in the U.K.

"Around the U.K., accidental entanglement in fishing gear is one of the biggest threats this species faces," Jarvis said. "They tend to come closer to shore than most other large whale species," he added, which means there is "greater potential for interaction with both active and lost gear."

Most beached whales are already dead when they wash ashore, which can make it hard to establish a cause of death even when they haven't begun decomposing, Jarvis said.

Originally published on Live Science.

Harry Baker

Harry Baker is a trainee news writer at Live Science, based in the U.K. He studied Marine Biology at the University of Exeter (Cornwall Campus). After graduating, he created his own blog site "Marine Madness," where he writes about the weird and wonderful creatures of our oceans and the issues they face in a changing world. He is also interested in evolution, climate change, space exploration and environmental conservation. When not at work he can be found watching sci-fi or reading about octopuses. You can follow him on Twitter @harryjpbaker