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Environmental DNA survey for estimating migratory fish distribution and evaluating impacts of river structures

Research Project

Project/Area Number 17H03623
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Conservation of biological resources
Research InstitutionHokkaido University

Principal Investigator

Araki Hitoshi  北海道大学, 農学研究院, 教授 (20707129)

Co-Investigator(Kenkyū-buntansha) 福島 路生  国立研究開発法人国立環境研究所, 生物・生態系環境研究センター, 主任研究員 (10291048)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywords環境DNA / 希少種 / 外来種 / 生物分布 / 河川工作物 / 魚類相 / 回遊性魚類 / 季節性 / 移動障壁
Outline of Final Research Achievements

In this study, we developed environmental DNA detection systems for understanding distribution and movement of migratory fish species and evaluating impacts of river structures on them. We found that hidden distributions of endangered Sakhalin taimen and Shishamo smelt and their migratory patterns, as well as Hokkaido-wide distributions of >50 freshwater and anadromous fish species including invasive fish species. Together with estimations of environmental parameters, our results suggested that dams and weirs cause local extinctions of salmonid species and that development of fish ladder had positive effects on fish migration.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は環境DNAという新しい技術を用いることで、広域・多河川における複数種の魚類の分布や生態を短期間で科学的かつ網羅的に把握できる可能性を示した。これらの生物の中には絶滅危惧種や希少種のほか、ニジマスやブラウントラウトといった侵略的外来種も含まれており、今後これらの生物の実態をより正確かつ迅速に把握できるモニタリングシステムの構築が可能となることが示唆された。また河川工作物の改良計画時にも有用な生態学的情報を提供する手法として発展が期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (20 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 2 results,  Invited: 7 results) Book (2 results)

  • [Journal Article] Environmental DNA monitoring for short‐term reproductive migration of endemic anadromous species, Shishamo smelt ( Spirinchus lanceolatus )2020

    • Author(s)
      Yatsuyanagi Tetsu、Ishida Ryotaro、Sakata Masayuki K.、Kanbe Takashi、Mizumoto Hiroki、Kobayashi Yumi、Kamada Shoko、Namba Satoko、Nii Hisaya、Minamoto Toshifumi、Araki Hitoshi
    • Journal Title

      Environmental DNA

      Volume: 2 Issue: 2 Pages: 130-139

    • DOI

      10.1002/edn3.50

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of water depth and structural complexity on survival and settlement of white-spotted charr (Salvelinus leucomaenis)2019

    • Author(s)
      Miyamoto Kouta、Araki Hitoshi
    • Journal Title

      Hydrobiologia

      Volume: 840 Issue: 1 Pages: 103-112

    • DOI

      10.1007/s10750-019-3887-x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ongoing localized extinctions of stream-dwelling white-spotted charr populations in small dammed-off habitats of Hokkaido Island, Japan2019

    • Author(s)
      Kentaro Morita, Genki Sahashi, Masaki Miya, Shouko Kamada, Takashi Kanbe, Hitoshi Araki
    • Journal Title

      Hydrobiologia

      Volume: 印刷中 Issue: 1 Pages: 1-7

    • DOI

      10.1007/s10750-019-3891-1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Establishing an environmental DNA method to detect and estimate the biomass of Sakhalin taimen, a critically endangered Asian salmonid2018

    • Author(s)
      Mizumoto Hiroki、Urabe Hirokazu、Kanbe Takashi、Fukushima Michio、Araki Hitoshi
    • Journal Title

      Limnology

      Volume: 19 Issue: 2 Pages: 219-227

    • DOI

      10.1007/s10201-017-0535-x

    • NAID

      40021518661

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] オール北海道: 北海道を舞台にした環境DNA研究2019

    • Author(s)
      荒木仁志
    • Organizer
      環境DNA学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 北海道における環境DNAを用いたサケ科魚類のモニタリング2019

    • Author(s)
      荒木仁志
    • Organizer
      日本魚類学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Environmental DNA methods as a monitoring tool for understanding salmonid fishes2019

    • Author(s)
      Hitoshi Araki
    • Organizer
      北太平洋溯河性魚類委員会(NPAFC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Environmental DNA for Fish Monitoring in the Wild2019

    • Author(s)
      Hitoshi Araki
    • Organizer
      北太平洋海洋科学機関(PICES)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Environmental DNA for studying intra-specific variations2019

    • Author(s)
      H. Araki, H. Mizumoto and T. Kanbe
    • Organizer
      日本生態学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Understanding the distribution and biomass of Sakhalin taimen using environmental DNA2019

    • Author(s)
      H. Mizumoto, K. Ikeda, and H. Araki
    • Organizer
      日本生態学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 環境DNAを用いた北海道河川魚類相の解明と展望2018

    • Author(s)
      荒木仁志,水本寛基,神戸崇,鎌田頌子,南波聡子
    • Organizer
      環境DNA学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 環境DNAを用いた魚類分布・資源量推定の実例紹介2018

    • Author(s)
      荒木仁志
    • Organizer
      環境アセスメント協会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 環境DNA技術を用いた水圏生物相推定および河川横断工作物影響評価の可能性2018

    • Author(s)
      荒木仁志
    • Organizer
      魚道研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 環境DNAを通して観る北海道の水圏生物2017

    • Author(s)
      荒木仁志
    • Organizer
      第47回北洋シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 環境DNA技術を用いて回遊魚イトウの分布を探る2017

    • Author(s)
      水本寛基・荒木仁志・宮正樹
    • Organizer
      第47回北洋シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 環境DNAを用いた水圏生物研究2017

    • Author(s)
      荒木仁志
    • Organizer
      流域環境研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 環境DNA2017

    • Author(s)
      荒木仁志
    • Organizer
      魚類系統研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 環境DNAを用いたイトウの分布調査速報2017

    • Author(s)
      水本寛基・荒木仁志
    • Organizer
      魚類系統研究会
    • Related Report
      2017 Annual Research Report
  • [Book] 生物学者,地球を行く「北の海に未知なる生命を求めてー環境DNAの挑戦」2018

    • Author(s)
      荒木仁志、宮正樹、池田実、矢部衞
    • Total Pages
      7
    • Publisher
      文一総合出版
    • ISBN
      9784829971079
    • Related Report
      2017 Annual Research Report
  • [Book] 環境DNAを通して視る北海道の水圏生物2018

    • Author(s)
      荒木仁志、水本寛基
    • Total Pages
      5
    • Publisher
      生物研究社
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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