About the Authors

Hideki Kobayashi

hidekik@jamstec.go.jp

Affiliation Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan

Yuji Hatada

Affiliation Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan

Taishi Tsubouchi

Affiliation Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan

Takahiko Nagahama

Affiliations Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan, Department of Food and Nutrition, Higashi-Chikushi Junior College, Kitakyusyu, Fukuoka, Japan

Hideto Takami

Affiliation Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HK. Performed the experiments: HK YH TT TN. Analyzed the data: HK TN. Contributed reagents/materials/analysis tools: HK. Wrote the paper: HK HT.