Articles | Volume 18, issue 2
https://doi.org/10.5194/os-18-295-2022
© Author(s) 2022. 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-18-295-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Mar 2022
Research article |
| 07 Mar 2022
| 07 Mar 2022
Carbon and nitrogen dynamics in the coastal Sea of Japan inferred from 15 years of measurements of stable isotope ratios of Calanus sinicus
Ken-ichi Nakamura
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
present address: Kokusai Kogyo Co. Ltd., Tokyo, 102-0085, Japan
Atsushi Nishimoto
Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Yokohama, 236-8648, Japan
Saori Yasui-Tamura
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
present address: Department of Ocean Sciences, Tokyo University of
Marine Science and Technology, Tokyo, 108-8477, Japan
Yoichi Kogure
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
Misato Nakae
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
Naoki Iguchi
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
Haruyuki Morimoto
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, 951-8121, Japan
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Yokohama, 236-8648, Japan
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Short summary
The Sea of Japan, surrounding Russia, the Korean Peninsula, and the Japanese Archipelago, is one of the most rapidly changing seas in the world. We measured carbon and nitrogen isotope ratios of zooplankton. We determined that the carbon stable isotope ratio has been decreasing over 15 years, and this trend was comparable to or slightly more rapid than the Suess effect, which is a signal of anthropogenic disturbance. Therefore, carbon dynamics are changing in the shallow coastal waters.
The Sea of Japan, surrounding Russia, the Korean Peninsula, and the Japanese Archipelago, is one...
