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Reproductive success and aggressive behaviours in life history phenotypes in male Masu salmon

Research Project

Project/Area Number 19580199
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionHokkaido University

Principal Investigator

MAEKAWA Koji  Hokkaido University, 名誉教授 (80002301)

Co-Investigator(Kenkyū-buntansha) 後藤 晃  北海道大学, 北方生物圏フィールド科学センター, 教授 (30111165)
Co-Investigator(Renkei-kenkyūsha) GOTO Akira  北海道大学, 北方生物圏フィールド科学センター, 教授 (30111165)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsサケ科 / 雄2型 / 繁殖成功 / 攻撃 / サクラマス / オス2型 / 残留型 / 産卵行動 / 食卵 / 順位 / スニーク / 繁殖行動 / マイクロサテライトDNA / 中型個体 / 受精成功 / サクラマス雄
Research Abstract

サクラマスの産卵中、河川残留型のスニークのタイミングが残留型の繁殖成功に影響しており、ペアの産卵とほぼ同時に放精することが重要であることが明らかになった。また、残留型とペアオス(回遊型)の相対的な体サイズの大きさが繁殖成功の相対的な大きさに影響していることが示唆された。これらが個体の繁殖成功(結果として個体の適応度)のばらつきをもたらすと考えられ、生活史二型と代替繁殖戦術の進化を考察する上で重要な知見をもたらした。

Report

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

    (14 results)

All 2008 2007 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (2 results) Book (3 results)

  • [Journal Article] Variation in migratory history of Dolly Varden in a stream with an artificial dam in the Shiretoko Peninsula, Hokkaido, Japan2008

    • Author(s)
      Umatani Y., T. Arai and K. Maekawa
    • Journal Title

      Environmental Biology of Fishes 83

      Pages: 37-44

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 北海道千歳川支流紋別川で起きた在来種アメマス単独生息域への外来種ブラウントラウトの侵入2008

    • Author(s)
      長谷川功、前川光司
    • Journal Title

      日本水産学会誌 74

      Pages: 432-434

    • NAID

      110006689319

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Potential of habitat complexity for mitigating interference competition between native and nonnative salmonid species2008

    • Author(s)
      Hasegawa, K. and K. Maekawa
    • Journal Title

      Can. J. Zool. 86

      Pages: 386-393

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of timing of nest entry and body size on the fertilization success of alternative male reproductive phenotypes of masu salmon2008

    • Author(s)
      Watanabe M.
    • Journal Title

      Canadian Journal of Zoology 86

      Pages: 1121-1130

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variation in migratory history of Dolly Varden in a stream with an artificial dam in the Shiretoko Peninsula, Hokkaido, Japan2008

    • Author(s)
      Umatani Y.
    • Journal Title

      Environmental Biology of Fishes 83

      Pages: 37-44

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variation in migratory history of Dolly Varden in a stream with an artificialdam in the Shiretoko Peninsula, Hokkaido, Japan.2008

    • Author(s)
      Umatani, Y
    • Journal Title

      Environmental Biology of Fishes (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Different longitudinal distribution patterns of native white-spotted charr and nonnative brown trout in Monbetsu stream, Hokkaido, northern Japan.2008

    • Author(s)
      Hasegawa, K.
    • Journal Title

      Ecology of Freshwater Fish 17

      Pages: 189-192

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 北海道で確認された外来種ブラウントラウトによるヤツメウナギ類の捕食2008

    • Author(s)
      長谷川 功
    • Journal Title

      水産増殖 55

      Pages: 651-652

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of timing of nest entry and body size on the fertilization success of alternative male reproductive phenotypes of masu salmon(Oncorhynchus masou)

    • Author(s)
      Watanabe M., K. Takamura and K. Maekawa
    • Journal Title

      Can. J.Zool. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] Effects of timiEffects of timing of nest entry and body size on the fertilization success of alternative male reproductive phenotypes of masu salmon2008

    • Author(s)
      Watanabe M., K.Takamura and K.Maekawa
    • Organizer
      (Oncorhynchus masou). Evolutionary, Ecological Ethology of Fishes (EEEF)
    • Place of Presentation
      Univ. of Boston
    • Related Report
      2008 Final Research Report
  • [Presentation] サクラマス残留型雄の繁殖成功と無関係な卵食行動2007

    • Author(s)
      渡辺正宏・高村正造・前川光司
    • Organizer
      第40回日本魚類学会
    • Place of Presentation
      北海道大学,札幌
    • Year and Date
      2007-10-06
    • Related Report
      2007 Annual Research Report
  • [Book] 「地球と生命の進化学-新・自然史科学I」、古生代前期における魚類の進化、陸上生態系の出現と初期進化(沢田健ら(編))2008

    • Author(s)
      大原昌宏、前川光司、矢部衛
    • Publisher
      北海道大学出版会
    • Related Report
      2008 Final Research Report
  • [Book] 地球と生物の変動学-新・自然史科学II」、日本列島の形成と淡水魚類相の成立過程(沢田健ら(編))2008

    • Author(s)
      渡辺勝敏、前川光司
    • Publisher
      北海道大学出版会
    • Related Report
      2008 Final Research Report
  • [Book] 地球と生命の進化学-新自然史科学I-(沢田 健等 編)第4章 古生代前期における魚類の進化、陸上生態系の出現と初期進化2008

    • Author(s)
      大原昌宏・前川光司・矢部 衛
    • Publisher
      北海道大学図書刊行会
    • Related Report
      2007 Annual Research Report

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

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