About the Authors

Irene D. Alabia

irenealabia@salmon.fish.hokudai.ac.jp

Affiliations Arctic Research Center, Hokkaido University, N21 W11 Kita-Ku, Sapporo, 001–0021, Japan, Laboratory of Marine Environment and Resource Sensing, Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate, 041–8611, Hokkaido, Japan

Sei-Ichi Saitoh

Affiliations Arctic Research Center, Hokkaido University, N21 W11 Kita-Ku, Sapporo, 001–0021, Japan, Laboratory of Marine Environment and Resource Sensing, Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate, 041–8611, Hokkaido, Japan

Robinson Mugo

Affiliation Regional Centre for Mapping of Resources for Development—SERVIR-Africa, Kasarani Road, P.O. Box 632–00618, Ruaraka, Nairobi, Kenya

Hiromichi Igarashi

Affiliation Data Research Center for Marine-Earth Sciences, Japan Agency for Marine Earth-Science and Technology, JAMSTEC, 3173–25 Showamachi, Kanazawa-ward, Yokohama City, Kanagawa, 236–0001, Japan

Yoichi Ishikawa

Affiliation Data Research Center for Marine-Earth Sciences, Japan Agency for Marine Earth-Science and Technology, JAMSTEC, 3173–25 Showamachi, Kanazawa-ward, Yokohama City, Kanagawa, 236–0001, Japan

Norihisa Usui

Affiliation Oceanographic Research Department, Meteorological Research Institute, 1–1 Nagamine, Tsukuba, 305–0052, Japan

Masafumi Kamachi

Affiliation Oceanographic Research Department, Meteorological Research Institute, 1–1 Nagamine, Tsukuba, 305–0052, Japan

Toshiyuki Awaji

Affiliation Graduate School of Science Division of Earth and Planetary Science, Kyoto University, Sakyo-ward, Kyoto, 606–8502, Japan

Masaki Seito

Affiliation Aomori Prefectural Industrial Technology Research Center, 4-11-6 Dainitonya-machi, Aomori-shi, Aomori, 030–0113, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IDA RM SS. Analyzed the data: IDA. Contributed reagents/materials/analysis tools: HI YI NU MK MS TA. Wrote the paper: IDA RM SS TA.