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Eight new deep-sea species of marine sponges discovered

The study identified 36 tetractinellid species and added eight new ones, highlighting unexplored caves and seamounts as key habitats for conservation.

  • Scientists with the Nippon Foundation-Nekton Ocean Census discovered 1,121 new marine species over the past year, increasing the global rate of marine species discovery by 54 percent.
  • Researchers conducted 13 expeditions ranging from shallow Mediterranean sea caves to depths exceeding 21,500 feet, documenting marine life across some of the ocean's least explored regions.
  • Notable finds include a "Ghost Shark" chimaera identified in Australia's Coral Sea Marine Park and a carnivorous "ping-pong ball" sponge from the South Atlantic using delicate stalks to trap prey.
  • The initiative recently launched an open-access platform called NOVA, allowing discoveries to be digitally shared within days instead of years, while formal description provides a "passport" for each new species.
  • Scientists estimate that up to 90 percent of marine species remain undocumented, while ocean life faces warming, acidification, and deep-sea mining pressures that threaten habitats before they are studied.
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11 Articles

An international research team discovers more than 1000 new underwater species – including a ghost shark.

·Zürich, Switzerland
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The researchers have found 54 percent more species than in the previous year. The discoveries were made all over the world.

·Netherlands (Kingdom of the)
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Ocean Census mission has identified marine species never before seen: giant molluscs, ghost sharks and organisms capable of surviving extreme pressures six kilometres deep.

·Portugal
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India Today broke the news in India on Wednesday, May 20, 2026.
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