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Precise abundance estimation method by cetacean sighting surveys

Research Project

Project/Area Number 19780156
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field General fisheries
Research InstitutionFisheries Research Agency

Principal Investigator

岡村 寛  Fisheries Research Agency, 遠洋水産研究所外洋資源部, 主任研究員 (40371942)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥1,150,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥500,000 (Direct Cost: ¥500,000)
Keywords水産資源学 / 水産資源管理 / 数理モデル / 鯨 / 目視
Research Abstract

本研究では,最新の統計技法を使用して,南氷洋ミンククジラの個体数をより精度良く推定する方法を開発した.開発したモデルをIWCから提供を受けた南氷洋ミンククジラの実際の目視データに当てはめることにより,偏りの小さい南氷洋の個体数推定値を得た.その結果,従来の方法で知られているよりも,個体数の変動は小さいことが明らかになった.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (17 results)

All 2008 2007 Other

All Journal Article (8 results) (of which Peer Reviewed: 4 results) Presentation (5 results) Remarks (4 results)

  • [Journal Article] A resource selection model for analyzing pseudoreplicated data due to grouping behavior of animals2008

    • Author(s)
      Okamura, H., Kiyota, M., and Kitakado, T.
    • Journal Title

      Journal of Agricultural, Biological, and Environmental Statistics 13(3)

      Pages: 294-312

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Toward sustainable management of small cetacean fisheries around Japan2008

    • Author(s)
      Okamura, H., Iwasaki, T., and Miyashita, T.
    • Journal Title

      Fisheries Science 74(4)

      Pages: 718-729

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A resource selection model for analyzing pseudoreplicated data due to grouping behavior of animals2008

    • Author(s)
      Hiroshi Okamura, Masashi Kiyota, Toshihide Kitakado
    • Journal Title

      Journal of Agricultural, Biological, and Environmental Statistics 13

      Pages: 294-312

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Toward sustainable management of small cetacean fisheries around Japan2008

    • Author(s)
      Hiroshi Okamura, Toshihide Iwasaki, Timio Miyashita
    • Journal Title

      Fisheries Science 74

      Pages: 718-729

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 総合討論:大型海洋動物のトラッキングデータの解析手法:最近の発展2008

    • Author(s)
      岡村寛・北川貴士・米崎史郎・清田雅史
    • Journal Title

      水産海洋研究 72

      Pages: 251-253

    • NAID

      10024767176

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Estimation of g(0) in Korean line transect surveys2007

    • Author(s)
      Okamura, H. and An, Y. -R.
    • Journal Title

      Journal of Cetacean Research and Management 9

      Pages: 186-187

    • Related Report
      2008 Final Research Report
  • [Journal Article] Estimationofg(0)inKoreanlinetransectsurveys2007

    • Author(s)
      Okamura, H.and An, Y.-R.
    • Journal Title

      The Journal of Cetacean Research and Management(Supplement) 9

      Pages: 186-187

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Approximate calculation of sub-area level additional CVs based on revised abundance estimates for conditioing of ISTs2007

    • Author(s)
      Okamura, H., Kitakado, T., and Butterworth, D.S.
    • Journal Title

      The Journal of Cetacean Research and Management(Supplement) 9

      Pages: 123-123

    • Related Report
      2007 Annual Research Report
  • [Presentation] The simulation-based management of small cetacean fisheries around Japan2008

    • Author(s)
      Okamura, H., Hiramatsu, K., and Miyashita, T.
    • Organizer
      5th World Fisheries Congress
    • Place of Presentation
      横浜市
    • Year and Date
      2008-10-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] The simulation-based management of small cetacean fisheries around Japan2008

    • Author(s)
      Okamura, H., Hiramatsu, K., and Miyashita, T.
    • Organizer
      5th World Fisheries Congress Program & Abstract
    • Place of Presentation
      Yokohama
    • Related Report
      2008 Final Research Report
  • [Presentation] Potential difficulties and challenging issues in line transect surveys for the estimation of whale abundance2008

    • Author(s)
      Kitakado, T., Okamura, H., Shimada, H., and Miyashita, T.
    • Organizer
      5th World Fisheries Congress Program & Abstract
    • Place of Presentation
      Yokohama
    • Related Report
      2008 Final Research Report
  • [Presentation] シミュレーションモデルによる小型鯨類捕獲の影響評価2007

    • Author(s)
      岡村 寛・岩崎俊秀・宮下富夫
    • Organizer
      平成19年度日本水産学会秋季大会講演要旨集
    • Place of Presentation
      函館
    • Related Report
      2008 Final Research Report
  • [Presentation] 小型鯨類の管理方法の検討2007

    • Author(s)
      岡村 寛
    • Organizer
      東京大学海洋研究所共同利用研究集会「シミュレーションを用いた水産資源の管理 -不確実性への挑戦-」
    • Place of Presentation
      東京
    • Related Report
      2008 Final Research Report
  • [Remarks] Okamura, H. and Kitakado, T. (2007)Abundance estimates of Southern Hemisphere minke whales from the IDCR/SOWER surveys using a hazard probability model. 第59回国際捕鯨委員会科学委員会提出論文(SC/59/IA14), 29pp.

    • Related Report
      2008 Final Research Report
  • [Remarks] Okamura, H., and Kitakado, T. (2008) The specifications of the hazard probability model to estimate the abundances of Southern Hemisphere minke whales from the historical IDCR/SOWER survey data. SOWER abundance workshop (SC/F08/A2). 19pp.

    • Related Report
      2008 Final Research Report
  • [Remarks] Okamura, H. and Kitakado, T. (2008) Abundance estimates of Antarctic minke whales from the historical IDCR/SOWER survey data using the OK method. 第60回国際捕鯨委員会提出文書 (SC/60/IA8), 19pp.

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://cse.fra.affrc.go.jp/okamura/main/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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