Rapid de novo assembly of animal-microbe biofilter to mitigate seabed methane leakage
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ID: 313413
2026
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Abstract
Abstract Anthropogenic and climatic perturbations threaten to destabilize gas hydrates and release methane from its vast subseafloor reservoir. Yet the deep-sea ecosystem responses remain poorly understood. Our multi-year, in situ monitoring of a human-induced methane seep unveiled an exceptionally fast, de novo establishment of methane-consuming ecosystem within 1–2 years, followed by a rapid succession toward natural mature seeps. Integrated biogeochemical and molecular analyses revealed an unexpectedly parallel proliferation of aerobic methanotrophs (Methyloprofundus), anaerobic methanotrophs (ANME-2e, ANME-3), and opportunistic fauna bioturbating the seabed to >50 cm depths. Within this intensively mixed zone, active animal-microbe interactions sustained rapid methane removal (30–60 mmol/m2/day) through intricate carbon, nitrogen, and sulfur redox coupling. Our work demonstrates that abrupt methane leakage can form an effective animal-microbe ‘methane biofilter’ far quicker than previously estimated, producing new insights into benthic natural mitigation capacity and limits that are critical for risk assessments and climate projections under increasing seabed methane efflux.
| Reference Key |
openalex_W7161160617
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| Authors | Qianyong Liang, Longhui Deng, Ruize Xie, Xinyue Liu, XJ Xiao, Jialin Hou, Yì Wáng, Weikang Sui, Ningyuan Lu, Zian Tong, Danyue Huang, Yue Wang, Yingchun Han, Jing Zhao, Binbin Guo, W K Zhang, Minghui Geng, Tianxin Ren, W M Ye, Zheng Xiong, Liang Dong, S Emil Ruff, Christof Meile, Jun Tao, Xiyang Dong, Fang Wang |
| Journal | national science review |
| Year | 2026 |
| DOI |
10.1093/nsr/nwag266
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| URL | |
| Keywords | Keywords not found |
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