Among Newly Discovered Ocean Species, a Baby Colossal Squid Is Filmed for the First Time
Antipatharians, or black corals, are named for their jet-black skeletons, but they can actually be quite colorful. Photo by ROV SuBastian
Among Newly Discovered Ocean Species, a Baby Colossal Squid Is Filmed for the First Time
May 16, 2025
NatureScience
Kate Mothes
An archipelago in the South Atlantic known as the South Sandwich Islands is home to some of the most remote landmasses in the world. Uninhabited except for occasional scientific research, their volcanic makeup highlights the geological and ecological diversity of this part of the world, and we still have much to learn.
Schmidt Ocean Instituterecently completed a 35-day trek on the Falkorto the remote island chain and discovered new hydrothermal vents, coral gardens, and what researchers suspect to be entirely new species. During this expedition, the team also confirmed the sighting of a juvenile colossal squid, capturing one on film for the first time.
“Colossal squid are estimated to grow up to 23 feet in length and can weigh as much as 1,100 pounds, making them the heaviest invertebrate on the planet,” the institute says, noting the significance of the documentation because the animals have only ever been found dead, after they’ve washed ashore or been eaten by predators.
“Little is known about the colossal squid’s life cycle, but eventually, they lose the see-through appearance of the juveniles,” says a statement. “Dying adults have previously been filmed by fishermen but have never been seen alive at depth.”
This recent expedition forms part of the Nippon Foundation–Nekton Ocean Census program, the largest initiative working to expedite the discovery of ocean life. During the voyage, the team weathered tropical storm-force winds with hurricane-level gusts, 26-foot waves, icebergs, and a subsea earthquake.
Ocean Census scientists focused on discovering new species, documenting corals, sponges, sea urchins, snails, sea stars, and benthic ctenophores—commonly called comb jellies or sea gooseberries. The team will announce the exact number of new species later this year after taxonomic experts verify their findings.
This is the first confirmed live observation of the colossal squid, Mesonychoteuthis hamiltoni, in its natural habitat. Photo by ROV SuBastian
“The 35 days at sea were an exciting rollercoaster of scientific discovery, the implications of which will be felt for many years to come as discoveries filter into management action,” says Dr. Michelle Taylor, head of science and expedition principal investigator for the Ocean Census. She adds, “This is exactly why the Ocean Census exists—to accelerate our understanding of ocean life before it’s too late.”
See more on the Schmidt Ocean Institute’s website.
A sea cucumber recorded at 649.45 metres at Saunders East, in waters measuring +0.51°CA “ping pong” spongeis documented on a seafloor bank west of South Georgia Island
This isopod was found during a dive at 470 metres depth at Saunders East, with a water temperature of +0.54°CA vibrant grouping of coral, documented on Humpback Seamount
A nudibranch observed at 268 metres on the eastern side of Montagu Island, where temperatures hovered at +0.35°CA Brisingid — a type of deep-sea starfish — perches on a ledge among many brittle starsat a site east of Saunders Island
Basket stars, a type of echinoderm, are abundant on seamounts and rocky outcroppings; ROV pilots recorded this observation at 673 meters during a dive on a bank west of South Georgia Island
A crustacean from the Antarcturidae family found at 331.61 metres at Saunders East, where the temperature measured +0.5°C, seen here perched on a sea pen
Research Vessel Falkorconducts studies off the South Sandwich Islands, including a site close to Montagu Island. The South Sandwich Islands area is extremely active volcanically
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#among #newly #discovered #ocean #species
Among Newly Discovered Ocean Species, a Baby Colossal Squid Is Filmed for the First Time
Antipatharians, or black corals, are named for their jet-black skeletons, but they can actually be quite colorful. Photo by ROV SuBastian
Among Newly Discovered Ocean Species, a Baby Colossal Squid Is Filmed for the First Time
May 16, 2025
NatureScience
Kate Mothes
An archipelago in the South Atlantic known as the South Sandwich Islands is home to some of the most remote landmasses in the world. Uninhabited except for occasional scientific research, their volcanic makeup highlights the geological and ecological diversity of this part of the world, and we still have much to learn.
Schmidt Ocean Instituterecently completed a 35-day trek on the Falkorto the remote island chain and discovered new hydrothermal vents, coral gardens, and what researchers suspect to be entirely new species. During this expedition, the team also confirmed the sighting of a juvenile colossal squid, capturing one on film for the first time.
“Colossal squid are estimated to grow up to 23 feet in length and can weigh as much as 1,100 pounds, making them the heaviest invertebrate on the planet,” the institute says, noting the significance of the documentation because the animals have only ever been found dead, after they’ve washed ashore or been eaten by predators.
“Little is known about the colossal squid’s life cycle, but eventually, they lose the see-through appearance of the juveniles,” says a statement. “Dying adults have previously been filmed by fishermen but have never been seen alive at depth.”
This recent expedition forms part of the Nippon Foundation–Nekton Ocean Census program, the largest initiative working to expedite the discovery of ocean life. During the voyage, the team weathered tropical storm-force winds with hurricane-level gusts, 26-foot waves, icebergs, and a subsea earthquake.
Ocean Census scientists focused on discovering new species, documenting corals, sponges, sea urchins, snails, sea stars, and benthic ctenophores—commonly called comb jellies or sea gooseberries. The team will announce the exact number of new species later this year after taxonomic experts verify their findings.
This is the first confirmed live observation of the colossal squid, Mesonychoteuthis hamiltoni, in its natural habitat. Photo by ROV SuBastian
“The 35 days at sea were an exciting rollercoaster of scientific discovery, the implications of which will be felt for many years to come as discoveries filter into management action,” says Dr. Michelle Taylor, head of science and expedition principal investigator for the Ocean Census. She adds, “This is exactly why the Ocean Census exists—to accelerate our understanding of ocean life before it’s too late.”
See more on the Schmidt Ocean Institute’s website.
A sea cucumber recorded at 649.45 metres at Saunders East, in waters measuring +0.51°CA “ping pong” spongeis documented on a seafloor bank west of South Georgia Island
This isopod was found during a dive at 470 metres depth at Saunders East, with a water temperature of +0.54°CA vibrant grouping of coral, documented on Humpback Seamount
A nudibranch observed at 268 metres on the eastern side of Montagu Island, where temperatures hovered at +0.35°CA Brisingid — a type of deep-sea starfish — perches on a ledge among many brittle starsat a site east of Saunders Island
Basket stars, a type of echinoderm, are abundant on seamounts and rocky outcroppings; ROV pilots recorded this observation at 673 meters during a dive on a bank west of South Georgia Island
A crustacean from the Antarcturidae family found at 331.61 metres at Saunders East, where the temperature measured +0.5°C, seen here perched on a sea pen
Research Vessel Falkorconducts studies off the South Sandwich Islands, including a site close to Montagu Island. The South Sandwich Islands area is extremely active volcanically
Previous articleNext article
#among #newly #discovered #ocean #species
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