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Improvement of Skipjack tuna PFG estimation by real-time update of HSI model

Research Project

Project/Area Number 21K05759
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40030:Aquatic bioproduction science-related
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Hiromichi Igarashi  国立研究開発法人海洋研究開発機構, 付加価値情報創生部門(地球情報科学技術センター), グループリーダー (10578157)

Co-Investigator(Kenkyū-buntansha) 阿部 泰人  北海道大学, 水産科学研究院, 准教授 (40627246)
齊藤 誠一  北海道大学, 北極域研究センター, 研究員 (70250503)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsカツオ / ハビタットモデル / 漁場推定 / リアルタイム修正 / リアルタイム更新 / 隠れマルコフモデル / AIS
Outline of Research at the Start

本研究では、カツオ漁船のAISデータを活用して操業状態を推定し漁場位置を推定する仕
組みを構築し、そのデータを即時的に導入するハビタットモデルを構築して漁場推定精度を
向上させることを目的とする。漁場形成環境の急激な変化に即応できる新しい仕組みを導入
したハビタットモデルを用いて高精度の漁場推定を実現することにより、気候変動に伴う漁
場形成機構の変化を定量的に把握するとともに、漁場探索を効率化して漁船の燃油消費を抑
え漁業経営の安定化につながる技術の実利用化を目指す。

Outline of Final Research Achievements

The purpose of this study is to accurately estimate the potential fishing grounds of skipjack tuna (Katsuwonus pelamis) by immediately introducing fishing position dataset derived from AIS from Japanese fishing vessels for real-time updating of a habitat model that can respond immediately to rapid changes in the fishing ground environments. A potential fishing ground estimation model for skipjack tuna is developed from fishing ground location data estimated by applying a hidden Markov model to AIS data of Japanese fishing vessels from 2015 to 2018, and a real-time model updating system are applied to the 2019 case for its validation. The results showed that real-time updates significantly improved AUC in several months of the year. On the other hand, it was also confirmed that the results depended on the amount of data at the time of update.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた成果を漁業情報サービス企業や地方自治体の水産試験場等で社会実装して高精度の漁場推定精度のモデルプロダクトを漁業者に提供して、漁場探索にかかる燃油コストを削減することで、エンドユーザである漁業者の経営安定化につなげることができる。さらに、リアルタイムデータを活用して気候変動に即応した漁場推定を実現してハビタットモデルの更新前後で得られる差分を活用することで、気候変動に伴う漁場形成機構への影響を定量的に把握することができる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Present Status and Future Prospective of Remote Sensing Application for Fisheries2021

    • Author(s)
      齊藤 誠一, 高橋 文宏, 五十嵐 弘道
    • Journal Title

      Journal of The Remote Sensing Society of Japan

      Volume: 41 Issue: 2 Pages: 189-199

    • DOI

      10.11440/rssj.41.189

    • NAID

      130008077771

    • ISSN
      0289-7911, 1883-1184
    • Year and Date
      2021-05-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of a Histogram-Based Method for Front Detection to the Sea Surface Temperature and Chlorophyll-a Data by ‘Himawari’ and ‘Shikisai’ Satellite : Importance of initial data smoothing2021

    • Author(s)
      石崎 廣,五十嵐 弘道,荒井 頼子,蒲地 政文,石川 洋一,齊藤 誠一
    • Journal Title

      Memoirs of the Faculty of Fisheries Sciences, Hokkaido University

      Volume: 60 Pages: 1-31

    • DOI

      10.14943/mem.fish.60.1

    • NAID

      120007181257

    • ISSN
      2435-3361
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Adaptive improvement of habitat suitability index (HSI) model for skipjack tuna in the western North Pacific using real-time ocean forecast and AIS vessel position data2023

    • Author(s)
      Igarashi, H., H.Abe, S.Saitoh
    • Organizer
      North Pacific Marine Science Organization (PICES) 2023 annual meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 自動船舶識別装置(AIS)を用いた中国・日本アカイカ漁船の動態解析と漁場位置2022

    • Author(s)
      大納進太郎, 阿部泰人, 五十嵐弘道, 齊藤誠一
    • Organizer
      水産海洋学会創立60周年記念大会
    • Related Report
      2022 Research-status Report
  • [Presentation] A comparison study for behavior of Japanese and Chinese neon flying squid vessel in the North Pacific using Automatic Identification System.2022

    • Author(s)
      Ohno, S., H. Abe, H. Igarashi, and S.-I. Saitoh
    • Organizer
      North Pacific Marine Science Organization (PICES)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Activities of the ICES-PICES-PAME working group on Integrated Ecosystem Assessment for the Central Arctic Ocean (WGICA)2022

    • Author(s)
      Lis Lindal Jorgensen, Sei-Ichi Saitoh, and Martine van den Heuvel-Greve
    • Organizer
      North Pacific Marine Science Organization (PICES)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Application of multiple satellite datasets to sustainable use of salmon resource under changing climate2022

    • Author(s)
      Sei-Ichi Saitoh, Yasuyuki Miyakoshi, Takafumi Hirata, Irene D. Alabia and Fumihiro Takahashi
    • Organizer
      North Pacific Marine Science Organization (PICES)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 海況モデルを活用した漁場推定-日本近海とインドネシアの事例-2022

    • Author(s)
      五十嵐 弘道
    • Organizer
      水産海洋学会地域研究集会 第4回海と漁業と生態系に関する研究集会 海洋モデルデータの水産・海洋研究への活用
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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