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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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...
