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Population dynamics of marine organisms on multiple scales for conservation of coastal ecosystems in the Nansei Islands

Research Project

Project/Area Number 25840152
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ecology/Environment
Research InstitutionOkinawa Institute of Science and Technology Graduate University

Principal Investigator

NAKAJIMA Yuichi  沖縄科学技術大学院大学, 海洋生態物理学ユニット, 研究員 (50581708)

Project Period (FY) 2013-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords遺伝子流動 / 遺伝的多様性 / 隠蔽種 / マイクロサテライト / 南西諸島 / 保全遺伝学 / クローン / 集団遺伝学 / 遺伝的分化 / サンゴ / 保全生態学
Outline of Final Research Achievements

In recent years, coral populations in the Nansei Islands, Japan, have declined due to environmental changes and anthropogenic disturbances. Species diversity, genetic diversity, and genetic structure were evaluated using molecular phylogenetic analysis and population genetic analysis, based upon DNA markers for the genera Galaxea, Seriatopora, and Pocillopora. In addition, clonal distribution and reproductive characteristics were evaluated based on genotypes. Cryptic species were apparent in all three genera. Furthermore, genetic diversity and differentiation between sites differed by genus, and appeared to be influenced by reproductive mode and by population size and density. Clonal distribution differs for each location, even within the same species. The age of these populations and local environmental factors have affected their genetic compositions.

Report

(5 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (8 results)

All 2017 2016 2015 2014

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Elucidating the multiple genetic lineages and population genetic structure of the brooding coral Seriatopora (Scleractinia: Pocilloporidae) in the Ryukyu Archipelago2017

    • Author(s)
      Nakajima Y, Nishikawa A, Iguchi A, Nagata T, Uyeno D, Sakai K, Mitarai S
    • Journal Title

      Coral Reefs

      Volume: online first Issue: 2 Pages: 1-10

    • DOI

      10.1007/s00338-017-1557-x

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Genetic differentiation and connectivity of morphological types of the broadcast-spawning coral Galaxea fascicularis in the Nansei Islands, Japan2016

    • Author(s)
      Nakajima Y, Zayasu Y, Shinzato C, Satoh N, Mitarai S
    • Journal Title

      Ecology and Evolution

      Volume: 6 Issue: 5 Pages: 1457-1469

    • DOI

      10.1002/ece3.1981

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Novel polymorphic microsatellite markers reveal genetic differentiation between two sympatric types of Galaxea fascicularis2015

    • Author(s)
      Nakajima Y, Shinzato C, Satoh N, Mitarai S
    • Journal Title

      PLoS One

      Volume: 10 Issue: 7 Pages: e0130176-e0130176

    • DOI

      10.1371/journal.pone.0130176

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 琉球列島のトゲサンゴ属の遺伝的グループと地点間分化2016

    • Author(s)
      中島祐一・井口亮・西川昭・長田智史・上野大輔・酒井一彦・御手洗哲司
    • Organizer
      日本サンゴ礁学会第19回大会
    • Place of Presentation
      沖縄
    • Year and Date
      2016-12-01
    • Related Report
      2016 Annual Research Report
  • [Presentation] Population genetic analysis at various spatial scales of the broadcast-spawning coral, Galaxea fascicularis, in the Nansei Islands, Japan2016

    • Author(s)
      Nakajima Y, Zayasu Y, Shinzato C, Wepfer PH, Satoh N, Mitarai S
    • Organizer
      13th International Coral Reef Symposium
    • Place of Presentation
      ハワイ(アメリカ合衆国)
    • Year and Date
      2016-06-21
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 琉球列島のサンゴの遺伝子流動と環境変動に関する最新の知見と予測2016

    • Author(s)
      中島祐一
    • Organizer
      日本サンゴ礁学会第19回大会自由集会「地質・化石が囁く琉球列島のサンゴ礁地形・生態系変遷史 2016」
    • Place of Presentation
      沖縄
    • Related Report
      2016 Annual Research Report
  • [Presentation] 琉球列島のトゲサンゴSeriatopora hystrixの遺伝的多様性と集団遺伝構造2015

    • Author(s)
      中島祐一・井口亮・西川昭・長田智史・上野大輔・御手洗哲司・酒井一彦
    • Organizer
      日本生態学会第62回大会
    • Place of Presentation
      鹿児島
    • Year and Date
      2015-03-18 – 2015-03-22
    • Related Report
      2014 Research-status Report
  • [Presentation] 南西諸島に生息するアザミサンゴのタイプ間・地域間遺伝的分化と繁殖特性2014

    • Author(s)
      中島祐一・新里宙也・座安佑奈・佐藤矩行・御手洗哲司
    • Organizer
      日本サンゴ礁学会第17回大会
    • Place of Presentation
      高知
    • Year and Date
      2014-11-27 – 2014-11-30
    • Related Report
      2014 Research-status Report

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

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