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Seasonal migration in the Pacific giant octopus Enteroctopus dofleini

Research Project

Project/Area Number 25450288
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Aquatic bioproduction science
Research InstitutionHokkaido Research Organization

Principal Investigator

SANO Minoru  地方独立行政法人北海道立総合研究機構, その他部局等, 研究員 (80523539)

Co-Investigator(Kenkyū-buntansha) Itaya Kazuhiko  北海道立総合研究機構, 釧路水産試験場, 研究員 (70536606)
Uchida Yasuhito  北海道立総合研究機構, 地質研究所, 研究員 (60465961)
Koshimizu Kenichi  北海道立総合研究機構, 地質研究所, 研究員 (30636171)
Co-Investigator(Renkei-kenkyūsha) Miyashita Kazushi  北海道大学, 北方生物圏フィールド科学センター, 教授 (70301877)
Research Collaborator Bando Tadao  
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsミズダコ / 深浅移動 / バイオロギング / 音響調査 / 宗谷海峡 / 藻場 / 底質
Outline of Final Research Achievements

Seasonal migration characteristics of the North Pacific giant octopus, Enteroctopus dofleini (Wülker, 1910), were investigated in the Soya/La Perouse Strait. We conducted capture-recapture surveys using a temperature logger to infer migration patterns for this species, examined the stomach contents of captured individuals, and identified sessile organisms on the sea bottom by sonar and digital camera observations. In addition, we reared octopuses at several water temperatures in temperature-controlled tanks to examine the relationship between temperature and growth rate. The findings showed that octopuses start migrating to deep areas at water temperatures >15°C. No octopuses were observed in shallow areas at temperatures >= 21°C in the Soya/La Perouse Strait. In autumn, when the water temperatures in shallow areas decreased below 19°C, the octopuses appeared to return to these areas in search of food, remaining there from winter to spring.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (12 results)

All 2016 2015 2014 2013

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Seasonal migration of North Pacific giant octopus <i>Enteroctopus dofleini</i> in the Soya/La P&eacute;rouse Strait2015

    • Author(s)
      佐野稔、坂東忠男
    • Journal Title

      NIPPON SUISAN GAKKAISHI

      Volume: 81 Issue: 1 Pages: 27-42

    • DOI

      10.2331/suisan.81.27

    • NAID

      130004780786

    • ISSN
      0021-5392, 1349-998X
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 資源管理と漁家経営を両立する資源管理支援システム2016

    • Author(s)
      佐野 稔
    • Organizer
      平成27年度水産業普及指導員経営支援強化研修
    • Place of Presentation
      札幌市
    • Year and Date
      2016-01-13
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Effect of water temperature on seasonal migration of North Pacific giant octopus Enteroctopus dofleini in Soya/La P&eacute;rouse Strait2015

    • Author(s)
      Minoru Sano, Tadao Bando, Kazushi Miyashita
    • Organizer
      Cephalopod International Advisory Council Conference 2015
    • Place of Presentation
      Hakodate, Hokkaido
    • Year and Date
      2015-11-09
    • Related Report
      2015 Annual Research Report
  • [Presentation] 2.魚種別の最新事例 ②ミズダコ2015

    • Author(s)
      佐野 稔
    • Organizer
      水産海洋学会地域研究集会 第1回北海道水産海洋研究集会
    • Place of Presentation
      釧路市
    • Year and Date
      2015-10-12
    • Related Report
      2015 Annual Research Report
  • [Presentation] 音響手法を用いた宗谷岬周辺海域における海藻繁茂状況の把握2015

    • Author(s)
      板谷和彦、佐野稔、邵花梅、南憲吏、坂東忠男、宮下和士
    • Organizer
      2015年度水産海洋学会研究発表大会
    • Place of Presentation
      釧路市
    • Year and Date
      2015-10-09
    • Related Report
      2015 Annual Research Report
  • [Presentation] 宗谷岬周辺海域における海底景観の特徴2015

    • Author(s)
      佐野 稔、坂東忠男、板谷和彦、邵花梅、南憲吏、宮下和士
    • Organizer
      平成27年度日本水産学会春季大会
    • Place of Presentation
      東京都港区
    • Year and Date
      2015-03-27 – 2015-03-31
    • Related Report
      2014 Research-status Report
  • [Presentation] ミズダコ資源の季節変動と水温特性2015

    • Author(s)
      佐野 稔
    • Organizer
      岩手県ミズダコフォーラム
    • Place of Presentation
      岩手県盛岡市
    • Year and Date
      2015-02-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 北海道北部日本海沿岸におけるミズダコの漁場形成2014

    • Author(s)
      佐野 稔、梅田有宏、佐々木隆浩
    • Organizer
      水産海洋学会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      2014-11-14 – 2014-11-16
    • Related Report
      2014 Research-status Report
  • [Presentation] 沿岸漁業のニーズに応えた浅海域海底面可視化とその応用-宗谷、留萌、野付海域における事例-2014

    • Author(s)
      内田康人、仁科健二、佐野稔、桒原康裕、三好晃治、板谷和彦、輿水健一、高見雅三、宮下和士
    • Organizer
      海洋調査技術学会
    • Place of Presentation
      東京都江東区
    • Year and Date
      2014-11-12 – 2014-11-13
    • Related Report
      2014 Research-status Report
  • [Presentation] 飼育条件下におけるミズダコの成長と水温の関係2014

    • Author(s)
      佐野稔・坂東忠男
    • Organizer
      日本水産学会
    • Place of Presentation
      北海道函館市
    • Related Report
      2013 Research-status Report
  • [Presentation] 宗谷海峡海域を対象としたミズダコ資源管理のための新たな底質環境評価の試み2013

    • Author(s)
      内田康人・佐野 稔・輿水健一・板谷和彦・宮下和士
    • Organizer
      海洋調査技術学会 第25回研究成果発表会
    • Place of Presentation
      東京都江東区
    • Related Report
      2013 Research-status Report
  • [Book] 第4章巨大タコの栄華-寒海の主役-(日本のタコ学)2014

    • Author(s)
      佐野稔(奥谷喬司編著)
    • Total Pages
      273
    • Publisher
      東海大学出版会
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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