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First Confirmed Footage of a Colossal Squid
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First Confirmed Footage of a Colossal Squid [schmidtocean.org]:
One hundred years after its discovery, the colossal squid has been filmed alive in its environment for the first time by a team on board Schmidt Ocean Institute’s R/V Falkor (too) in waters off the South Sandwich Islands.
Video and photos available here. [photoshelter.com]
PALO ALTO, California–An international team of scientists and crew on board Schmidt Ocean Institute’s research vessel Falkor (too) was the first to film the colossal squid (Mesonychoteuthis hamiltoni) in its natural environment. The 30-centimeter juvenile squid (nearly one foot long) was captured on video at a depth of 600 meters (1968 feet) by the Institute’s remotely operated vehicle (ROV) SuBastian. The sighting occurred on March 9 on an expedition near the South Sandwich Islands in the South Atlantic Ocean. This year is the 100-year anniversary of the identification and formal naming of the colossal squid, a member of the glass squid family (Cranchiidae).
Additionally, on January 25 a team on the previous Falkor (too) expedition filmed the first confirmed footage of the glacial glass squid (Galiteuthis glacialis) in the Southern Ocean near Antarctica. G. glacialis is another glass squid species that has never been seen alive in its natural environment before.
The 35-day expedition that captured the footage of the colossal squid was an Ocean Census flagship expedition searching for new marine life – a collaboration between Schmidt Ocean Institute, the Nippon Foundation-Nekton Ocean Census, and GoSouth, a joint project between the University of Plymouth (UK), GEOMAR Helmholtz Centre for Ocean Research (Germany), and the British Antarctic Survey.“It’s exciting to see the first in situ footage of a juvenile colossal and humbling to think that they have no idea that humans exist,” said Dr. Kat Bolstad of the Auckland University of Technology, one of the independent scientific experts the team consulted to verify the footage. “For 100 years, we have mainly encountered them as prey remains in whale and seabird stomachs and as predators of harvested toothfish.”
Colossal squid are estimated to grow up to seven meters (23 feet) in length and can weigh as much as 500 kilograms (1100 lbs), making them the heaviest invertebrate on the planet. Little is known about the colossal squid’s life cycle, but eventually, they lose the see-through appearance of the juveniles. Dying adults have previously been filmed by fishermen, but have never been seen alive at depth.
Dr. Aaron Evans, another independent expert on the glass squid family, also confirmed the footage of both squids. Bolstad and Evans said one of the most distinguishing characteristics of colossal squid is the presence of hooks on the middle of their eight arms, which help differentiate them from G. glacialis. Otherwise juvenile colossal squid and G. glacialis are similar, with transparent bodies and sharp hooks at the end of their two longer tentacles.
“It’s incredible that we can leverage the power of the taxonomic community through R/V Falkor (too) telepresence while we are out at sea,” said the expedition’s chief scientist, Dr. Michelle Taylor of the University of Essex, who led The Nippon Foundation-Nekton Ocean Census team on the South Sandwich Islands expedition. “The Ocean Census international science network is proud to work together with the Schmidt Ocean Institute to accelerate species discovery and expand our knowledge of ocean life, live online with the world’s science community.”
The first confirmed footage of the G. glacialis was filmed in the Bellingshausen Sea near Antarctica during the Schmidt Ocean Institute’s January expedition, which examined the seafloor after an iceberg the size of Chicago calved [schmidtocean.org] from the George VI ice shelf. On board was deep-sea expert Dr. Thom Linley from the Museum of New Zealand Te Papa Tongarewa, who alerted his colleague, Bolstad, as he watched the ROV footage from the vessel’s mission control room. In the footage, taken at 687 meters (2254 feet), the transparent G. glacialis positions its arms loosely above its head, similar to the cockatoo pose commonly observed in other glass squids.
“The first sighting of two different squids on back-to-back expeditions is remarkable and shows how little we have seen of the magnificent inhabitants of the Southern Ocean,” said Schmidt Ocean Institute’s executive director, Dr. Jyotika Virmani. “Fortunately, we caught enough high-resolution imagery of these creatures to allow the global experts, who were not on the vessel, to identify both species.”
To date, the Schmidt Ocean Institute’s ROV SuBastian has captured the first confirmed footage of at least four squid species in the wild, including the Spirulaspirula (Ram’s Horn Squid [mdpi.com]) in 2020 and the Promachoteuthis [schmidtocean.org] in 2024, with one more first sighting yet to be confirmed. “These unforgettable moments continue to remind us that the Ocean is brimming with mysteries yet to be solved,” Virmani said.
About the Organizations
Schmidt Ocean Institute was established in 2009 by Eric and Wendy Schmidt to catalyze the discoveries needed to understand our ocean, sustain life, and ensure the health of our planet through the pursuit of impactful scientific research and intelligent observation, technological advancement, open sharing of information, and public engagement, all at the highest levels of international excellence. For more information, visitwww.schmidtocean.org [schmidtocean.org].
The Nippon Foundation–Nekton Ocean Census is the world’s largest mission to accelerate the discovery of ocean life. Launched in April 2023, it unites philanthropy, government, science, business, media, and civil society to revolutionise how marine species are found and studied. With only 240,000 marine species documented and millions more yet to be discovered, the Ocean Census is working to close critical biodiversity knowledge gaps. Learn more at oceancensus.org [oceancensus.org].
