Evidence map›Paper›PMID 39820746›Full record

ArticleNature communications2025

Removal of dissolved organic carbon in the West Pacific hadal zones.

Mengfan Chu, Rui Bao, Michael Strasser, Ken Ikehara, Yang Ding, Kejian Liu, Mingzhi Liu, Li Xu, Yonghong Wang, Piero Bellanova and 9 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Mengfan ChuFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China.ORCID http://orcid.org/0000-0001-7369-518X
Rui BaoFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China. baorui@ouc.edu.cn.ORCID http://orcid.org/0000-0001-8159-5269
Michael StrasserUniversity of Innsbruck, Institute of Geology, Innsbruck, Austria.ORCID http://orcid.org/0000-0003-3991-2405
Ken IkeharaNational Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Institute of Geology and Geoinformation, Ibaraki, Japan.ORCID http://orcid.org/0000-0003-3906-4303
Yang DingFrontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, China.
Kejian LiuFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China.
Mingzhi LiuFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China.
Li XuNOSAMS Laboratory, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.ORCID http://orcid.org/0000-0002-7745-3417
Yonghong WangDepartment of Marine Geosciences, Ocean University of China, Qingdao, China.
Piero BellanovaRWTH Aachen University, Institute of Neotectonics and Natural Hazards & Institute of Geology and Geochemistry of Petroleum and Coal, Aachen, Germany.ORCID http://orcid.org/0000-0001-5204-8602
Troy RasburyDepartment of Geosciences, Stony Brook University, New York, NY, USA.ORCID http://orcid.org/0000-0003-0591-4461
Martin KöllingMARUM - Center for Marine Environmental Science, University of Bremen, Bremen, Germany.ORCID https://orcid.org/0000-0003-2720-2211
Natascha RiedingerBoone Pickens School of Geology, Oklahoma State University, Oklahoma, USA.ORCID http://orcid.org/0000-0001-6766-0749
Min LuoShanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai, China.ORCID http://orcid.org/0000-0002-2856-3951
Christian MärzSchool of Earth and Environment, University of Leeds, Leeds, UK.
Kana JitsunoDepartment of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan.
Zhirong CaiDepartment of Geology and Mineralogy, Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, Kyoto, Japan.
Cecilia McHughQueens College, City University of New York, School of Earth and Environmental Sciences, New York, NY, USA.ORCID http://orcid.org/0000-0002-6884-0458
Ellen DruffelDepartment of Earth System Science, University of California, Irvine, CA, USA.

Funding

National Natural Science Foundation of China (National Science Foundation of China) 92058207; 42076037
6 · The paper itself

Abstract

The deep oceans are environments of complex carbon dynamics that have the potential to significantly impact the global carbon cycle. However, the role of hadal zones, particularly hadal trenches (water depth > 6 km), in the oceanic dissolved organic carbon (DOC) cycle is not thoroughly investigated. Here we report distinct DOC signatures in the Japan Trench bottom water. We find that up to 34% ± 7% of the DOC in the trench bottom is removed during the northeastward transport of dissolved carbon along the trench axis. This DOC removal increases the overall DOC recalcitrance of the deep Pacific DOC pool, and is potentially enhanced by the earthquake-triggered physical and biogeochemical processes in the hadal trenches. Radiocarbon analysis on representative oceanic transects further reveals that the Pacific deep-water DOC undergoes distinct removal compared to those in the Atlantic and Indian Oceans along the thermohaline transport. Our findings highlight hadal trenches as previously unrecognized DOC sinks in the deep ocean system, with varying dynamics that warrant further investigation.

Identifiers

PMID39820746
PMCPMC11739656

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.