Iceberg may be designated wildlife threat to sub-Antarctic island

With an iceberg roughly the size of Delaware leading to the sub-Antarctic island of South Georgia, experts are concerned about the possibility of stopping wildlife from food sources and threatening the island’s ecosystem.

As of Wednesday, about 400 kilometers or about 250 miles off the coast of the British Isles region of South Georgia, the iceberg, known as A68a, British Antarctic Survey What was said.

Iceberg can run nearby The island And with this survey, Andrew Fleming, a remote sensing manager, said stay out of the island’s coast a few weeks.

Glacier Broke from The Antarctic Peninsula in 2017 and is about 100 miles long and 30 miles wide. The iceberg’s trajectory can change and clear the island, as it is the strongest oceanic flow where water is not poured by continents. This means that Iceberg can easily get past the island, all of this according to nature.

It is unpredictable what might happen if the Icebergs are to be encircled near South Georgia. M. Jackson, a glaciologist who is an investigator with the National Geographic Society. Such episodes are not unheard of, but they are usually given more attention when they pose a threat to people and wildlife, he said.

There is a chance that if A68a engulfed it, it could disrupt parts of South Georgia’s ecosystem, affecting some areas and paths, such as animals, such as seals and penguins, to hunt. And travel to collect food.

Dr. “Essentially, seals and penguins are born on land, then feed back and forth to the source and return with food,” Jackson said. “Icebergs can disrupt this, and seals and penguins may not be able to source and feed their land-based puppies and chicks, potentially triggering widespread starvation.”

Douglas R. McAile, Professor of Geophysical Sciences at the University of Chicago Who has studied the behavior of large icebergs, comparing A68a to other large icebergs, B-15A.

2000s, B-15A dropped parts of Ross Island into the Ross Sea as well as other icebergs surrounding it, causing panic in the island’s penguin colonies. In some colonies, years passed without raising chicks. Some penguins came from different colonies due to this disturbance.

“MacAyeal said in an email,” It took the genetic advantage of the exchange of genetic material from different, normally isolated, coitus. “In my view: If the A68a itself has to face the island or the shoals around it, it will be spectacular for a few days but will not cause an ecological catastrophe.”

Some experts predict that the A68a will eventually break into larger pieces as a result of stronger currents.

“The Southern Ocean around South Georgia is a completely wooded place with strong currents and sea-coral that will ‘flex’ the iceberg above the grounding point, causing it to strain and fracture like a ship,” Dr. McAire he said.

If the iceberg breaks close to the island’s coast, there is a possibility that it may displace large amounts of seawater “that could tear coastal communities apart,” Dr. Jackson said.

Such a threat has led some experts to believe that climate change is causing ice to melt and ice systems to break at significant rates.

“I suspect that given the increasing rate of ice melting around the world that this is the last time we will see it,” Dr. Jackson said. “I will not be surprised in the coming years if we continue to see large icebergs posing major threats to communities of people and wildlife.”

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