Further south, an Ocean Census Science Network team joined another R\/V Falkor (too) expedition in the Bellingshausen Sea. When iceberg A-84 \u2013 measuring roughly 510 km\u00b2 \u2013 calved from the George VI Ice Shelf in January 2025, researchers seized the rare opportunity to explore the newly exposed seabed, sealed under ~150 metres of ice for centuries.<\/p>\n
\u201cThe Southern Ocean remains profoundly under-sampled,\u201d said Dr Michelle Taylor, Head of Science at Ocean Census. \u201cWe\u2019ve only assessed 30% of the samples from this expedition so far, and already confirmed 30 new species. That shows how much biodiversity is still waiting to be documented.\u201d<\/p>\n
By pairing expeditions with rapid species discovery workshops, Ocean Census compresses what can take a decade of taxonomic work into months\u2014without compromising scientific rigour.<\/p>\n
Other confirmed or likely new species include:<\/p>\n
Armoured and iridescent scale worms (Eulagisca sp. nov.).<\/p>\n
New sea stars from Brisingidae, Benthopectinidae, and Paxillosidae families.<\/p>\n
Unidentified crustaceans, including isopods and amphipods, one of which may represent an entirely new amphipod family.<\/p>\n
Rare gastropods, bivalves, and black corals thriving in volcanic and hydrothermal-influenced habitats.<\/p>\n
A potentially new sea-pen genus now under expert review.<\/p>\n
\u201cAdvanced tools \u2013 from precision seafloor mapping to HD ROV imagery \u2013 let us explore places no human has ever seen,\u201d said Dr Jyotika Virmani, Executive Director of Schmidt Ocean Institute. \u201cThis collaboration has yielded the first juvenile colossal squid sighting and an array of new species, demonstrating what becomes possible when technology and science unite.\u201d<\/p>\n
At the Southern Ocean Species Discovery Workshop, taxonomists from around the world fast-tracked verification using a triage system \u2013 imaging, comparing, and DNA-barcoding specimens in real time. This \u201cocean-to-lab\u201d approach aims to tackle a chronic issue in taxonomy, that of samples languishing unprocessed for years due to limited resources.<\/p>\n
\u201cThis is exactly why Ocean Census exists,\u201d added Dr Taylor, who also lectures at the University of Essex. \u201cAccelerating discovery and making biodiversity data openly available ensures every species we confirm becomes a cornerstone for conservation and future science.\u201d<\/p>\n
Polar deep-sea ecosystems remain among Earth\u2019s most mysterious and least studied environments, vital for understanding evolution, biogeography, and resilience amid a changing climate.<\/p>\n
All confirmed species meeting Ocean Census\u2019 \u2018Discovered\u2019 criteria will be catalogued in the Ocean Census Biodiversity Data Platform \u2013 an open-access database designed to empower global research, conservation planning, and policy.<\/p>\n
From death-ball sponges to colossal squid, the Southern Ocean continues to remind us how much of our planet\u2019s life still lies hidden in the cold, dark depths\u2014waiting to be revealed.<\/p>\n