An international research team discovered 149 new deep-sea species at remote seamounts in the central-eastern Indian Ocean this month [1].
The discovery highlights the vast gaps in human knowledge regarding the deep ocean. Because these volcanic seamounts are remote and difficult to access, they often harbor unique biodiversity that remains undocumented by science.
The expedition focused on the central-eastern region of the Indian Ocean to document species living on underwater mountains. Researchers targeted these areas because deep-sea biodiversity in this part of the world is significantly understudied [1].
Mapping the ocean floor remains a monumental task for the scientific community. Approximately 90% of the Indian Ocean is deeper than 1,000 meters [1], a depth that requires specialized equipment and international coordination to explore.
While this specific expedition identified 149 new species [1], other global efforts have reported larger numbers. Some reports indicate that scientists have logged 1,121 new ocean species as part of a broader global research initiative [2].
The team utilized deep-sea surveys to collect specimens from the volcanic structures. These seamounts act as biological hotspots, providing surfaces for organisms to attach to in an otherwise open-water environment. By documenting these species, the researchers aim to create a baseline for the region's ecological health.
This find adds to a growing body of evidence that the deep ocean is far more biologically diverse than previously assumed. The international collaboration underscores the necessity of shared resources to explore the most remote parts of the planet.
“An international research team discovered 149 new deep-sea species at remote seamounts.”
The identification of nearly 150 new species in a single expedition suggests that a significant portion of Earth's biodiversity remains undiscovered. As deep-sea mining and climate change threaten fragile underwater ecosystems, establishing a biological inventory of these seamounts is critical for creating effective conservation boundaries and understanding the global carbon cycle.
