Rchr
J-GLOBAL ID：201801013781490418   Update date: Nov. 13, 2025

Hasegawa Kohei

ハセガワ コウヘイ | Hasegawa Kohei
Affiliation and department：
Hokkaido University Faculty of Fisheries SciencesDivision of Marine Bioresource and Environmental Science

About Hokkaido University Faculty of Fisheries SciencesDivision of Marine Bioresource and Environmental Science


Research field  (1)： Atmospheric and hydrospheric science
Research theme for competitive and other funds  (7)：
  • 2024 - 2028 Acoustic monitoring of Arctic top predators under abrupt climate change
  • 2022 - 2025 計量魚群探知機を用いた北海道噴火湾に生息する海洋生物の音響判別手法の開発
  • 2019 - 2022 Research for migration and distribution of pointhead flounder in Funka Bay, Hokkaido using acoustic methods
  • 2019 - 2022 Elucidation of acoustic characteristics of the "floating pointhead flounder" by field and tank experiments and realization of acoustic survey of fisheries resources
  • 2020 - 2021 道南沿岸域に生息する動物プランクトンの音響散乱特性の解明
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Papers (18)：
  • Evgeny A. Podolskiy, Monica Ogawa, Mayuko Otsuki, Kohei Hasegawa, Shin Sugiyama. Repeated narwhal interactions with moorings challenge safety assumptions of passive acoustic monitoring in the Arctic. Communications Biology. 2025. 8. 1
  • Shin Sugiyama, Atsushi Yamaguchi, Tatsuya Watanabe, Yasumasa Tojo, Naotaka Hayashi, Jean-Baptiste Thiebot, Makoto Tomiyasu, Kohei Hasegawa, Yoko Mitani, Mayuko Otsuki, et al. Changes in the coastal environments and their impact on society in the Qaanaaq region, northwestern Greenland. Polar Science. 2025
  • Zi Wang, Naizheng Yan, Tohru Mukai, Kohei Hasegawa, Jun Yamamoto. Broadband characteristics of Pacific herring (Clupea pallasii) and Pacific chub mackerel (Scomber japonicus) target strength identified using the tether method. Fisheries Research. 2025. 283. 107306-107306
  • Kohei Hasegawa, Naizheng Yan, Tohru Mukai, Yoshiaki Fukuda, Jun Yamamoto. Broadband Characteristics of Target Strength of Pacific Chub Mackerel. Fishes. 2025. 10. 2. 51-51
  • Ryuichi Matsukura, Hanae Doiguchi, Natsuki Yamamoto, Koki Abe, Kazuo Amakasu, Yoshiaki Fukuda, Kohei Hasegawa, Tohru Mukai, Hiroto Murase. Association of density and sound-speed contrast with maturity stage of Antarctic krill in the eastern Indian sector of the Southern Ocean. Fisheries Science. 2024
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MISC (25)：
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Books (1)：
  • Guide to operation of acoustic data collection system (AQFI-1301) for shallow waters
    Research Institute for Humanity and Nature 2017 ISBN:9784906888351
Lectures and oral presentations  (4)：
  • タチウオ曳縄漁業を対象にした漁具深度モニタリングシステムの開発
    (令和3年度日本水産学会春季大会第72回漁業懇話会講演会 2021)
  • In situ broadband acoustic measurements of 0-age walleye pollock and pointhead flounder in Funka Bay
    (The 13th Annual Meeting of Asian Fisheries Acoustics Society 2019)
  • 遺伝的アルゴリズムを用いた広帯域送受波器の素子配列の最適化
    (海洋音響学会2019年度研究発表会 2019)
  • 不規則配列を適用した送受波器のビーム特性シミュレーション
    (海洋音響学会2017年度研究発表会 2017)
Professional career (1)：
  • 工学博士 (東京海洋大学)
Awards (2)：
  • 2025/05 - Marine Acoustics Society of Japan Paper award Measurements and theoretical model simulation of target strength of Pacific chub mackerel for use in a quantitative sonar
  • 2019/11 - Asian Fisheries Acoustics Society Young Fisheries Acoustician Award
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