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Role of symbiotic assemblages in coral host survival: translocation from mesophotic to shallow reef

Research Project

Project/Area Number 16F16780
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Ecology/Environment
Research InstitutionUniversity of the Ryukyus

Principal Investigator

波利井 佐紀  琉球大学, 熱帯生物圏研究センター, 准教授 (30334535)

Co-Investigator(Kenkyū-buntansha) ROUZE HELOISE  琉球大学, 熱帯生物圏研究センター, 外国人特別研究員
Project Period (FY) 2016-11-07 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2017: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2016: ¥300,000 (Direct Cost: ¥300,000)
Keywordscoral / endosymbionts / exosymbionts / diversity / mesophotic / mesophotic corals / translocation
Outline of Annual Research Achievements

In FY2018, we finished the transplantation experiment with the final samplings of the corals and exosymbionts and the molecular analyses of both endo- and exosymbionts. We also performed nutriment and stable isotopes measurements from water sampled at the original and two transplant depths and the corals in collaboration with Dr. Yamazaki and Dr. Watanabe at Hokkaido University. In addition, Dr. Rouze, the JSPS fellow, visited Dr. Naruse, an expert in crustacean taxonomy in Iriomote Station of our University to work together on the taxonomy of a new exosymbiont species. The preliminary data obtained in this project were presented at the Gordon Conference on Mesophotic Coral Ecosystems in USA in June 2018.
The massive amount of data obtained by high throughput sequencing of the endosymbionts (Symbiodiniaceae) is still being analysed but the first results suggest a relative qualitative stability over depth contrasting with the quantitative results obtained by qPCR. In parallel, the stable isotopes analyses evidenced the nutritional plasticity of the coral Seriatopora hystrix.
Manuscripts reporting these finding are currently being finalized, while a manuscript on the early onset of the symbiosis between Acropora corals and Tetralia crabs has been published in April 2019.

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (2 results)

All 2018 2017

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

  • [Journal Article] Molecular characterization reveals the complexity of previously overlooked coral-exosymbiont interactions and the implications for coral-guild ecology2017

    • Author(s)
      Rouze H, Leray M, Magalon H, Penin L, Gelin P, Knowlton N, Fauvelot C
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 44923-44923

    • DOI

      10.1038/srep44923

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Symbiotic communities associated to corals from mesophotic vs. shallower coral ecosystems in Okinawa (Japan): implications for the coral-guilds depth adaptation2018

    • Author(s)
      Rouze H, Sinniger F, Harii S
    • Organizer
      Gordon Research Conference- Mesophotic Coral Reef Ecosystems
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2016-11-08   Modified: 2024-03-26  

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