航海番号 Number

KS-21-3

船舶名 Vessel

新青丸 Shinsei-Maru

出港 Departure

2021/03/23 八戸 Hachinohe

入港 Arrival

2021/03/30 横須賀 Yokosuka

海域 Area

東北沿岸域
Coastal areas off Tohoku

航海情報 Cruise information

航海題目 Title

混合期の東北沖前線域におけるサブメソスケール現象の構造と物質交換・生物生産に関する研究
Structure, material exchange and production processes of submesoscale phenomena in the off Tohoku frontal areas during a mixing period

研究代表者 Principal Investigator

伊藤 幸彦 (東京大学・大気海洋研究所)
ITOH, Sachihiko (AORI, The University of Tokyo)

調査概要 Research Summary

1. 混合層前線の構造と物質分布および動態に関する研究

2. 環境DNA分析による早春の東北・関東沿岸におけるプランクトン・魚類分布に関する研究

報告書・出版物 Reports and Publication

• JAMSTEC航海情報カタログ KS-21-3
• Ahmed, S.I., Z. Yu, T. Higuchi, J. Inoue, M.K.-S. Wong, S. Yoshizawa, S. Itoh, K. Komatsu, Y. Kawaguchi, E. Tsutsumi, Y. Lin, S. Hyodo, J. Morrongiello, and S. Ito, 2025: Fish species detection by environmental DNA metabarcoding by three surface sampling methods. Regional Studies in Marine Science
• Ahmed, S.I., Z. Yu, T. Higuchi, J. Inoue, M.K.-S. Wong, X. Wang, Y. Lin, S. Itoh, K. Komatsu, E. Tsutsumi, H. Fukuda, S. Hyodo, J. Morrongiello, E.M. Bendif, and S. Ito, 2026: Patterns in marine surface fish biodiversity and community composition detected by different eDNA metabarcoding sampling methods. Journal of Oceanography
• Lin, Y., Z. Yu, S.I. Ahmed, X. Wang, T. Higuchi, I. Yabe, M.K.-S. Wong, S. Itoh, E. Tsutsumi, H. Saito, K. Komatsu, A. Tsuda, Y. Kawaguchi, E. Oka, H. Obata, Y. Minegishi, H. Fukuda, J. Inoue, S. Hyodo, and S. Ito, 2026: Opposite latitudinal biodiversity gradient in the open ocean generated by transition zones: Insights from fish distribution in the Northwest Pacific. Progress in Oceanography