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Development of forecasting method for schooling marine mammals

Research Project

Project/Area Number 15K20828
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental and ecological symbiosis
Aquatic bioproduction science
Research InstitutionHokkaido University

Principal Investigator

MITANI Yoko  北海道大学, 北方生物圏フィールド科学センター, 准教授 (40538279)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords海棲哺乳類 / 回遊 / 海洋環境
Outline of Final Research Achievements

Schooling marine mammals has a heavily impact on the ecosystems by consuming vast quantities of fish resources. In this study, we investigated the relationship between the seasonal change of the distribution of Pacific white-sided dolphins and the marine environment, and clarified the parameters that influence the distribution and migration. Stable isotope analyses showed that they feed on sardines and squids. Interview surveys revealed that the dolphins and fisheries conflicts occur on the Sea of Japan side of Aomori and Oshima Peninsula. Location data obtained from ship-based sighting survey and satellite tracking showed that sea surface temperature, water depth and distance from land influence the distribution of dolphins at large scale.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015

All Journal Article (5 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Estimation of Environmental Factors that Influence the Migration Timing and Distribution of Pacific White-sided Dolphins around Hokkaido, Japan.2017

    • Author(s)
      Yuka Iwahara, Yoko Mitani, Kazushi Miyashita
    • Journal Title

      Pacific Science

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 北海道東部海域におけるシャチの分布と生息環境2017

    • Author(s)
      宮本春奈・岩原由佳・幅祥太・中原史生・大泉宏・斎野重夫・山本友紀子・吉岡基・三谷曜子
    • Journal Title

      知床博物館研究報告

      Volume: 39 Pages: 37-48

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 海棲哺乳類の保全・管理のための調査・解析手法(3)バイオテレメトリ・バイオロギング.2016

    • Author(s)
      南川真吾,村瀬弘人,三谷曜子.
    • Journal Title

      海洋と生物

      Volume: 38(4) Pages: 425-434

    • NAID

      40020942523

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Spatial association between northern fur seal (Callorhinus ursinus) and potential prey distribution during wintering period in the northern Sea of Japan.2016

    • Author(s)
      Takanori Horiomto, Yoko Mitani, Yasunori Sakurai
    • Journal Title

      Fisheries Oceanography

      Volume: 25 Issue: 1 Pages: 44-53

    • DOI

      10.1111/fog.12133

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] 船による北海道の海棲哺乳類目視調査2015

    • Author(s)
      三谷曜子
    • Journal Title

      勇魚

      Volume: 62 Pages: 11-14

    • Related Report
      2015 Research-status Report
  • [Presentation] 日本周辺海域におけるカマイルカの潜水行動の日周変化2017

    • Author(s)
      石井 緑・南川真吾・ 白川北斗・三谷曜子
    • Organizer
      平成29年度日本水産学会春季大会
    • Place of Presentation
      東京海洋大学(東京都港区)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Annual Research Report
  • [Presentation] カマイルカってどんなイルカ?2017

    • Author(s)
      三谷曜子
    • Organizer
      むつわんのイルカシンポジウム
    • Place of Presentation
      プラザホテルむつ(青森県むつ市)
    • Year and Date
      2017-03-11
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Spatial distribution factors of Pacific white-sided dolphins around northern Japan.2015

    • Author(s)
      Yuka Iwahara, Shingo Minamikawa, Kazushi Miyashita and Yoko Mitani
    • Organizer
      21st Biennial Conference on the Biology of Marine Mammals
    • Place of Presentation
      The Hilton San Francisco, San Francisco(アメリカ)
    • Year and Date
      2015-12-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Foraging Distribution of Pacific White-Sided Dolphin, Dall’S Porpoise and Harbor Porpoise around Hokkaido, Japan.2015

    • Author(s)
      Yuka Iwahara, Hokuto Shirakawa, Kazushi Miyashita, Yoko Mitani
    • Organizer
      Vth International Wildlife Management Congress 2015
    • Place of Presentation
      Sapporo Convention Center(北海道 札幌市)
    • Year and Date
      2015-07-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2018-03-22  

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