As it emerged, it was yet another journey into the abyss, cloaked in darkness: mid-water, a delicate, ethereal shape transitioning into another realm.
A remotely operated vehicle, Subathian, recorded the first footage of a giant squid stable in its natural habitat in the southern ocean near Antarctica. The giant squid can grow up to 10 meters (33 feet) in length, making it the heaviest invertebrate on the planet, yet until now, it remained elusive.
This remarkable discovery occurred during a 35-day expedition to the Southern Sandwich Islands, a secluded volcanic arc in the Southern Ocean, aboard the Folcole (too).
The expedition aimed to expedite the discovery of deep-sea species, but nobody anticipated encountering one of the ocean’s most elusive giants.
“We were operating Subathian at a depth of about 2,000 meters that day for trench work,” stated Dr. Michelle Taylor, Chief Scientist of the Expedition and Senior Lecturer at Essex University, as reported by BBC Science Focus.
While Subathian navigated through the cerulean waters, we remained in the control room, surrounded by high-resolution cameras and screens displaying sensor data from the vehicle. A group of scientists observed intently as we monitored the water column.
On March 9th, at a depth of approximately 600 meters (nearly 2,000 feet), the pilot spotted something and began to hover.
“None of us aboard were squid specialists, but we quickly recognized it as a stunning glass squid,” Taylor recounted. “We documented it for about three minutes before resuming our mission to explore the ocean floor.”
The giant squid is among the planet’s most enigmatic creatures. Until now, they had only been seen as dead specimens—either accidentally caught by fishing boats or found in a whale’s stomach. Documenting a living specimen is akin to discovering a unicorn in marine biology.
Furthermore, the squid was not yet fully grown. “It was a juvenile,” Taylor explained. “It lacked some physical features of adult squid, but it was definitely not fully developed. Its size was quite modest for a giant squid.”
The footage streamed live on YouTube during the dive was initially flagged by audience members.
Taylor consulted with Dr. Kat Bolstad, a cephalopod expert at Auckland Institute of Technology, along with other colleagues, who confirmed their identification with the aid of the 4K video footage captured during the dive.
Telltale clues included a distinctive hook along the squid’s arm.
“[Knowing it’s a colossal squid], I find it both beautiful and extraordinary,” Taylor remarked.
While the giant squid garnered headlines, it was not the singular highlight of the Folcole (too) expedition. About a month ago, researchers also captured the first in situ footage of a glacial glass squid.
Both sightings resulted from lengthy, meticulous dives conducted by Subathian, which can descend up to 4,500 meters (3 miles), enhancing the role of “telepresence” in scientific exploration.
“It’s a new milestone, bringing the world into the deep sea in ways that were once impossible,” Taylor states. “Science enthusiasts and the general public can engage directly with our findings, often possessing extensive knowledge about what we observe.”
Taylor emphasizes that the mission’s deeper purpose transcends mere discovery; it aims to enhance the understanding and protection of deep-sea life.
“This is the last frontier,” she emphasizes. “It’s perplexing why we pursue other planets when we barely comprehend our own oceans.”
The Ocean Census seeks to expedite the discovery of new species, yet this process remains painstakingly slow. Often, it takes over a decade from specimen collection to formal recognition.
In its initial years, the project has already documented more than 800 new species, focusing on uncharted areas and fostering collaboration with a global network of taxonomists.
The sighting of the giant squid may have been serendipitous, but for Taylor, it marks merely the beginning.
“There is still much left to discover,” she asserts.
About our experts
Michelle Taylor is a senior lecturer in the Faculty of Life Sciences at the University of Essex. Her research focuses on the deep sea and its diverse habitats. As the lead investigator of the Ocean Census, she headed the Japan Foundation-Necton Marine Census team on the South Sandwich Islands expedition.
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Source: www.sciencefocus.com
