Articles | Volume 17, issue 9
https://doi.org/10.5194/bg-17-2441-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-2441-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 May 2020
Research article |
| 06 May 2020
| 06 May 2020
Phytoplankton growth and consumption by microzooplankton stimulated by turbulent nitrate flux suggest rapid trophic transfer in the oligotrophic Kuroshio
Toru Kobari
CORRESPONDING AUTHOR
Aquatic Sciences, Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Taiga Honma
Aquatic Sciences, Graduate School of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Daisuke Hasegawa
Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3-27-5 Shinhama-cho, Shiogama, Miyagi 985-0001, Japan
Naoki Yoshie
Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
Eisuke Tsutsumi
Atmosphere and Ocean Research Institute, University of Tokyo,
5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
Takeshi Matsuno
Research Institute for Applied Mechanics, Kyushu University,
6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
Takeyoshi Nagai
Department of Ocean Sciences, Tokyo University of Marine Science and
Technology,
4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan
Takeru Kanayama
Aquatic Sciences, Graduate School of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Fukutaro Karu
Aquatic Sciences, Graduate School of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Koji Suzuki
Faculty of Environmental Earth Science, Hokkaido University,
North 10 West 5 Kita-ku, Sapporo, Hokkaido 060-0810, Japan
Takahiro Tanaka
Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3-27-5 Shinhama-cho, Shiogama, Miyagi 985-0001, Japan
Xinyu Guo
Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
Gen Kume
Aquatic Sciences, Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Ayako Nishina
Aquatic Sciences, Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
Hirohiko Nakamura
Aquatic Sciences, Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
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Short summary
We report on biological productivity under turbulent nitrate flux amplified with the Kuroshio. Oceanographic observations exhibit that the Kuroshio topographically enhances significant turbulent mixing and nitrate influx to the euphotic zone. Onboard experiments show phytoplankton and microzooplankton growths enhanced with the nitrate flux and a significant microzooplankton grazing on phytoplankton. These rapid and systematic trophodynamics enhance biological productivity in the Kuroshio.
We report on biological productivity under turbulent nitrate flux amplified with the Kuroshio....
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