Melbourne, Australia
AP
—
An ungainly barrel of a shark cruising languidly over a barren seabed far too deep for the solar’s rays to light up was an sudden sight.
Many specialists had thought sharks didn’t exist in the frigid waters of Antarctica earlier than this sleeper shark lumbered warily and briefly into the highlight of a video camera, researcher Alan Jamieson mentioned this week. The shark, filmed in January 2025, was a considerable specimen with an estimated size of between three and 4 meters (10 and 13 toes).
“We went down there not expecting to see sharks because there’s a general rule of thumb that you don’t get sharks in Antarctica,” Jamieson mentioned.
“And it’s not even a little one either. It’s a hunk of a shark. These things are tanks,” he added.
The camera operated by the Minderoo-UWA Deep-Sea Research Centre, which investigates life in the deepest elements of the world’s oceans, was positioned off the South Shetland Islands close to the Antarctic Peninsula. That is properly contained in the boundaries of the Antarctic Ocean, also referred to as the Southern Ocean, which is outlined as under the 60-degree south latitude line.
The heart on Wednesday gave The Associated Press permission to publish the pictures.
The shark was 490 meters (1,608 toes) deep the place the water temperature was a near-freezing 1.27 levels Celsius (34.29 levels Fahrenheit).
A skate seems in body immobile on the seabed and seemingly unperturbed by the passing shark. The skate, a shark relative that appears like a stingray, was no shock since scientists already knew their vary prolonged that far south.
Jamieson, who’s the founding director of the University of Western Australia-based analysis heart, mentioned he may discover no file of one other shark discovered in the Antarctic Ocean.
Peter Kyne, a Charles Darwin University conservation biologist unbiased of the analysis heart, agreed {that a} shark had by no means earlier than been recorded up to now south.
Climate change and warming oceans may probably be driving sharks to the Southern Hemisphere’s colder waters, however there was restricted knowledge on vary modifications close to Antarctica due to the area’s remoteness, Kyne mentioned.
The slow-moving sleeper sharks may have lengthy been in Antarctica with out anybody noticing, he mentioned.
“This is great. The shark was in the right place, the camera was in the right place and they got this great footage,” Kyne mentioned. “It’s quite significant.”
The sleeper shark inhabitants in the Antarctic Ocean was doubtless sparse and troublesome for people to detect, Jamieson mentioned.
The photographed shark was sustaining a depth of round 500 meters (1,640 toes) alongside a seabed that sloped into a lot deeper water. The shark maintained that depth as a result of that was the warmest layer of a number of water layers stacked upon one another to the floor, Jamieson mentioned.
The Antarctic Ocean is closely layered, or stratified, to a depth of round 1,000 meters (3,280 toes) due to conflicting properties together with colder, denser water from under not readily mixing with contemporary water working off melting ice from above.
Jamieson expects different Antarctic sharks dwell on the similar depth, feeding on the carcasses of whales, large squids and different marine creatures that die and sink to the underside.
There are few analysis cameras positioned at that particular depth in Antarctic waters. Those which might be can solely function throughout the Southern Hemisphere summer time months, from December by means of February.
“The other 75% of the year, no one’s looking at all. And so this is why, I think, we occasionally come across these surprises,” Jamieson mentioned.