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Main Authors: Peng, Xiaotong, Du, Mengran, Gebruk, Andrey, Liu, Shuangquan, Gao, Zhaoming, Glud, Ronnie N, Zhou, Peng, Wang, Ruoheng, Rowden, Ashley A, Kamenev, Gennady M, Maiorova, Anastassya S, Papineau, Dominic, Chen, Shun, Gao, Jinwei, Liu, Helu, He, Yuan, Alalykina, Inna L, Dolmatov, Igor Yu, Zhang, Hanyu, Li, Xuegong, Malyutina, Marina V, Dasgupta, Shamik, Saulenko, Anastasiia A, Shilov, Vladimir A, Liu, Shuting, Xie, Tongtong, Qu, Yuangao, Song, Xikun, Zhang, Haibin, Liu, Hao, Zhang, Weijia, Huang, Xiaoxia, Xu, Hongzhou, Xu, Wenjing, Mordukhovich, Vladimir V, Adrianov, Andrey V
Format: Artículo científico
Language:en
Published: Nature 2025
Subjects:
Methane
Geologic Sediments
Hydrogen Sulfide
Animals
Seawater
Earth, Planet
Oceans and Seas
Online Access:https://pubmed.ncbi.nlm.nih.gov/40739349/
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Table of Contents:
  • Flourishing chemosynthetic life at the greatest depths of hadal trenches. Peng, Xiaotong Du, Mengran Gebruk, Andrey Liu, Shuangquan Gao, Zhaoming Glud, Ronnie N Zhou, Peng Wang, Ruoheng Rowden, Ashley A Kamenev, Gennady M Maiorova, Anastassya S Papineau, Dominic Chen, Shun Gao, Jinwei Liu, Helu He, Yuan Alalykina, Inna L Dolmatov, Igor Yu Zhang, Hanyu Li, Xuegong Malyutina, Marina V Dasgupta, Shamik Saulenko, Anastasiia A Shilov, Vladimir A Liu, Shuting Xie, Tongtong Qu, Yuangao Song, Xikun Zhang, Haibin Liu, Hao Zhang, Weijia Huang, Xiaoxia Xu, Hongzhou Xu, Wenjing Mordukhovich, Vladimir V Adrianov, Andrey V Methane Geologic Sediments Hydrogen Sulfide Animals Seawater Earth, Planet Oceans and Seas Hadal trenches, some of the Earth's least explored and understood environments, have long been proposed to harbour chemosynthesis-based communities. Despite increasing attention, actual documentation of such communities has been exceptionally rare. Here we report the discovery of the deepest and the most extensive chemosynthesis-based communities known to exist on Earth during an expedition to the Kuril-Kamchatka Trench and the western Aleutian Trench using the manned submersible Fendouzhe. The communities dominated by siboglinid Polychaeta and Bivalvia span a distance of 2,500 km at depths from 5,800 m to 9,533 m. These communities are sustained by hydrogen sulfide-rich and methane-rich fluids that are transported along faults traversing deep sediment layers in trenches, where methane is produced microbially from deposited organic matter, as indicated by isotopic analysis. Given geological similarities with other hadal trenches, such chemosynthesis-based communities might be more widespread than previously anticipated. These findings challenge current models of life at extreme limits and carbon cycling in the deep ocean.

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