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The establishment of picocyanobacteria strains for the purpose of the water quality maintenance of Lakes Shinji and Nakaumi and applied study

Research Project

Project/Area Number 24510032
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental impact assessment/Environmental policy
Research InstitutionShimane University

Principal Investigator

OHTANI Shuji  島根大学, 教育学部, 教授 (50185295)

Research Collaborator SHIMURA Yohei  国立環境研究所
KAWACHI Masanobu  国立環境研究所
KASAI Akihide  京都大学フィールド科学教育研究センター
NOJIRI Yukari  島根県保健環境科学研究所
SATO Sachiko  島根県保健環境科学研究所
KAMIYA Hiroshi  島根県保健環境科学研究所
TSUCHIE Mayo  島根県水産技術センター
FUKUI Katsuya  島根県水産技術センター
SEMURA Hitoshi  島根県水産技術センター
ISHIBASHI Keiko  島根大学, 教育学部
TAKAHASHI Yoshiyuki  島根大学, 生物資源科学研究科
SATO Toshio  島根大学, 生物資源科学研究科
TANI Yukinori  静岡県立大学, 環境科学研究所
NANRI Takahiro  東京大学, 大学院新領域創成科学研究科
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords汽水湖 / 宍道湖・中海 / 植物プランクトン / ピコシアノバクテリア / 培養株 / 大量培養 / ヤマトシジミの餌 / 水質保全 / 汽水域 / 宍道湖 / ヤマトシジミ / 摂餌実験 / 餌としての効率 / 資源回復 / 応用研究
Outline of Final Research Achievements

In the brackish Lakes Shinji and Nakaumi, picocyanobacteria (cells ca. 1 μm in diameter) have been frequently dominant, but species were not confirmed and the roles in the ecosystem were not known. Pycocyanobacteria strains (ESS-1-2 and S3-1) were identified as Cyanobium sp. by the observation of cell morphology and the molecular analysis. Culture conditions of ESS-1-2 and several phytoplankton of Lake Shinji were established for the feeding experiment of Corbicula japonica. We observed a process of the digestion from feces and gastrointestinal observations of Corbicula japonica with ESS-1-2. After checking the effectiveness as the bait of Corbicula japonica with ESS-1-2, a diatom and a green alga, a diatom was the most effective as bait.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (5 results)

All 2014 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (2 results)

  • [Journal Article] 宍道湖・中海水系の微細藻類1.Chaetoceros minimus (Levander) D.Marino et al.の形態と分布2014

    • Author(s)
      廣瀬孝太郎,後藤敏一,大谷修司
    • Journal Title

      Diatom

      Volume: 30 Pages: 179-189

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 宍道湖・中海の植物プランクトン水質調査結果(2011年度)2013

    • Author(s)
      野尻由香里、崎幸子、大谷修司
    • Journal Title

      島根県保健環境科学研究所報

      Volume: 53 Pages: 53-61

    • Related Report
      2012 Research-status Report
  • [Journal Article] 島根県東部で1956年に採集された車軸藻類2012

    • Author(s)
      川上幾雄、大谷修司
    • Journal Title

      Hikobia

      Volume: 16 Pages: 235-255

    • NAID

      40019546997

    • Related Report
      2012 Research-status Report
  • [Presentation] 宍道湖産植物プランクトンの培養株保存とその応用研究2014

    • Author(s)
      大谷修司,神門利之,野尻由香里,佐藤紗知子,嵯峨友樹,辻谷睦巳,丸山将輝,菅井隆吉
    • Organizer
      第17回河川生態学術研究発表会
    • Place of Presentation
      発明会館(東京都港区)
    • Year and Date
      2014-11-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] 宍道湖における2010年~2013年のアオコの発生状況について

    • Author(s)
      大谷修司・神門利之・崎 幸子・野尻由香里・中島結衣・菅井隆吉
    • Organizer
      日本藻類学会第38回大会
    • Place of Presentation
      東邦大学(船橋)
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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