Articles | Volume 14, issue 4
https://doi.org/10.5194/os-14-575-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-14-575-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Jul 2018
Research article |
| 13 Jul 2018
| 13 Jul 2018
Hadal water biogeochemistry over the Izu–Ogasawara Trench observed with a full-depth CTD-CMS
Shinsuke Kawagucci
CORRESPONDING AUTHOR
Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC),
2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Research and Development Center for Submarine Resources (SRRP), Japan
Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15
Natsushima-cho, Yokosuka 237-0061, Japan
Project Team for Development of New-Generation Research Protocol for
submarine resources, Japan Agency for Marine-Earth Science and Technology
(JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Akiko Makabe
Research and Development Center for Submarine Resources (SRRP), Japan
Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15
Natsushima-cho, Yokosuka 237-0061, Japan
Project Team for Development of New-Generation Research Protocol for
submarine resources, Japan Agency for Marine-Earth Science and Technology
(JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Taketoshi Kodama
Japan Sea National Fisheries Research Institute, Japan Fisheries
Research and Education Agency, Niigata, 5939-22 Suido-cho, Niigata
951-8121, Japan
Yohei Matsui
Research and Development Center for Submarine Resources (SRRP), Japan
Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15
Natsushima-cho, Yokosuka 237-0061, Japan
Project Team for Development of New-Generation Research Protocol for
submarine resources, Japan Agency for Marine-Earth Science and Technology
(JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Chisato Yoshikawa
Research and Development Center for Submarine Resources (SRRP), Japan
Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15
Natsushima-cho, Yokosuka 237-0061, Japan
Department of Biogeochemistry, Japan Agency for Marine-Earth Science
and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Etsuro Ono
Research and Development Center for Global Change (RCGC), Japan Agency
for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho,
Yokosuka 237-0061, Japan
Present address: Japan Meteorological Agency, 1-3-4 Otemachi, Tokyo 100-8122, Japan
Masahide Wakita
Mutsu Institute for Oceanography, Japan Agency for Marine-Earth
Science and Technology (JAMSTEC), 690 Kitasekine, Mutsu 035-0022, Japan
Takuro Nunoura
Project Team for Development of New-Generation Research Protocol for
submarine resources, Japan Agency for Marine-Earth Science and Technology
(JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Research and Development Center for Marine Biosciences, Japan Agency
for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho,
Yokosuka 237-0061, Japan
Hiroshi Uchida
Research and Development Center for Global Change (RCGC), Japan Agency
for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho,
Yokosuka 237-0061, Japan
Taichi Yokokawa
CORRESPONDING AUTHOR
Project Team for Development of New-Generation Research Protocol for
submarine resources, Japan Agency for Marine-Earth Science and Technology
(JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
Research and Development Center for Marine Biosciences, Japan Agency
for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho,
Yokosuka 237-0061, Japan
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- Nitrogen isotope constraint on the zonation of multiple transformations between dissolved and particulate organic nitrogen in the Changjiang plume X. Yan et al. 10.1016/j.scitotenv.2021.151678
- Vertical distribution of size-fractionated bacterial communities in the water column of the Atacama Trench X. Zhao et al. 10.1016/j.rsma.2022.102470
- Assimilation and oxidation of urea‐derived nitrogen in the summer Arctic Ocean T. Shiozaki et al. 10.1002/lno.11950
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- Ultra high-resolution seawater density sensor based on a refractive index measurement using the spectroscopic interference method H. Uchida et al. 10.1038/s41598-019-52020-z
- Hadal aragonite records venting of stagnant paleoseawater in the hydrated forearc mantle R. Oyanagi et al. 10.1038/s43247-021-00317-1
- Removal of dissolved organic carbon in the West Pacific hadal zones M. Chu et al. 10.1038/s41467-025-55883-1
- What we know, what we can know, and what we will never know about the larval dispersal process at deep-sea chemosynthetic ecosystems T. Yahagi et al. 10.5928/kaiyou.28.4-5-6_97
- Particulate Organic Matter in the Atacama Trench: Tracing Sources and Possible Transport Mechanisms to the Hadal Seafloor E. Flores et al. 10.1029/2023JG007401
- Further correcting pressure effects on SBE911 CTD-conductivity data from hadal depths H. van Haren et al. 10.1007/s10872-020-00565-3
- Bottom‐associated phytoplankton bloom and its expansion in the Arctic Ocean T. Shiozaki et al. 10.1111/gcb.16421
- Drivers of Bacterial α- and β-Diversity Patterns and Functioning in Subsurface Hadal Sediments E. Rastelli et al. 10.3389/fmicb.2019.02609
- An autonomous underwater glider serving large spatiotemporal monitoring in hadal zones P. Wang et al. 10.1016/j.oceaneng.2023.114655
- Radiocarbon content of carbon dioxide and methane in hydrothermal fluids of Okinawa Trough vents S. Kawagucci et al. 10.2343/geochemj.2.0595
- Global Observing Needs in the Deep Ocean L. Levin et al. 10.3389/fmars.2019.00241
Latest update: 31 Mar 2025
Short summary
A full-depth-rated conductivity–temperature–depth profiler with
carousel~multiple sampling (CTD-CMS) system on the research vessel R/V Kaimei can illuminate the last frontier, i.e., the hadal zone, an oceanographic province deeper than 7000 m. A series of biogeochemical observations of hadal seawater at the Izu–Ogasawara and Mariana trenches revealed basically well-mixed hydrographic properties and a heterogeneous distribution of likely sediment-derived compounds.
A full-depth-rated conductivity–temperature–depth profiler with
carousel~multiple sampling...
