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The effect of micro plastic on symbiosis between corals and Symbiodinium

Research Project

Project/Area Number 17K07890
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Aquatic bioproduction science
Research InstitutionTokyo Keizai University

Principal Investigator

Okubo Nami  東京経済大学, 全学共通教育センター, 准教授 (50401576)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywordsサンゴ / イソギンチャク / マイクロプラスチック / 褐虫藻 / 共生 / 内胚葉
Outline of Final Research Achievements

We found in both the aposymbiotic sea-anemone Aiptasia sp. and the coral Favites chinensis that the infectivity of symbiotic algae into the host is severely suppressed by microspheres fed either directly or indirectly through microsphere-fed Artemia sp. Similar trends were seen when microplastics collected from commercial facewash were used instead of microspheres. Therefore, ongoing accumulation of microplastics in the ocean might disturb the healthy anthozoan-algae symbiotic relationships, which are cornerstones of the biologically enriched coral reef ecosystem.

Academic Significance and Societal Importance of the Research Achievements

海洋生態系において重要な役割を担うサンゴと褐虫藻の共生関係がマイクロプラスチックにより阻害されることを、サンゴとそのモデル生物であるイソギンチャクを用いた実験により世界で初めて発見しました。多くのサンゴにとって、褐虫藻が体の中に共生することは生き残るための必須条件です。マイクロプラスチックが海洋生物の相互関係(共生)を阻害するという知見はこれまでになく、世界中で危機に瀕するサンゴへの被害や、また、海洋で共生関係を維持するその他の生物への影響も懸念されます。

Report

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

    (9 results)

All 2019 2018 2017

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Microplastics disturb the anthozoan-algae symbiotic relationship2019

    • Author(s)
      Okubo Nami、Takahashi Shunichi、Nakano Yoshikatsu
    • Journal Title

      Marine Pollution Bulletin

      Volume: 135 Pages: 83-89

    • DOI

      10.1016/j.marpolbul.2018.07.016

    • NAID

      40021756353

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Coral individuality ? confluence of change physical splitting and developmental ability of embryos2017

    • Author(s)
      Okubo Nami、Toshino Sho、Nakano Yoshikatsu、Yamamoto Hiromi H.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 16006-16006

    • DOI

      10.1038/s41598-017-16273-w

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acceptable symbiont cell size differs among cnidarian species and may limit symbiont diversity2017

    • Author(s)
      Elise Biquand, Nami Okubo, Yusuke Aihara, Vivien Rolland, David C Hayward, Masayuki Hatta, Jun Minagawa, Tadashi Maruyama, Shunichi Takahashi,
    • Journal Title

      ISME Journal

      Volume: 印刷中 Issue: 7 Pages: 1702-1712

    • DOI

      10.1038/ismej.2017.17

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] サイエンスカフェ・サイエンスツアーを組み合わせた社会科学系学部生への正課外自然科学教育実践2017

    • Author(s)
      新正裕尚*、榎基宏、大久保奈弥、阿部弘樹
    • Journal Title

      科学技術コミュニケーション

      Volume: 21 Pages: 79-87

    • NAID

      120006313479

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] マイクロプラスチックはサンゴと褐虫藻の共生関係を阻害する2019

    • Author(s)
      大久保奈弥
    • Organizer
      付着生物学会
    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Invited
  • [Presentation] マイクロプラスチックはサンゴと褐虫藻の共生関係を阻害する2019

    • Author(s)
      大久保奈弥
    • Organizer
      日本ベントス学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] マイクロプラスチックはサンゴと褐虫藻の共生関係を阻害する2018

    • Author(s)
      大久保奈弥・高橋俊一・中野義勝
    • Organizer
      ベントス学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Restructuring the Traditional Suborders in the Order Scleractinia Based on Embryogenetic Morphological Characteristics2017

    • Author(s)
      Nami Okubo
    • Organizer
      ICIM4
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] Handbook on the Economics and Management of Sustainable Oceans2017

    • Author(s)
      M. Omori, A. Onuma*, N. Okubo
    • Total Pages
      624
    • Publisher
      UNEP and Edward Elgar Publishing House, UK
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-03-11  

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