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Environmental Changing Processes of Coral Reefs Caused by River Runoff of Red-soil and Washload

Research Project

Project/Area Number 09680505
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionNANZAN UNIVERSITY (2000)
Mie University (1997-1999)

Principal Investigator

MEZAKI Shigekazu  NANZAN UNIVERSITY, FACULTY OF POLICY STUDIES, PROFESSOR, 総合政策学部, 教授 (80101187)

Co-Investigator(Kenkyū-buntansha) HASEGAWA Hitoshi  KOKUSHIKAN UNIVERSITY, FACULTY OF LETTERS, PROFESSOR, 文学部, 教授 (80208496)
MAEKADO Akira  RYUKYU UNIVERSITY, FACULTY OF LAW AND LETTERS, PROFESSOR, 法文学部, 教授 (60190287)
Project Period (FY) 1997 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsISHIGAKI ISLAND / SHIRAHO REEF / ENVIRONMENTAL CHANGES / RIVER RUNOFF / REDSOIL POLLUTION / LAND REFORM PROJECT / 流域変化 / 土地利用 / 土砂流出 / サンゴ礁 / モニタリング / 環境変化 / 白化現象
Research Abstract

Investigation of coral reef environment at Shiraho Reef in Ishigaki Island of southern Ryukyu Islands have been carried out during 1997 and 2001. This area is rich in the variety of coral biodiversity with corals grow in the high density. However, river runoff caused by land reforming projects have been affecting to decline the coral reef environment in this area.
Line transect surveying and observation at the southern part reef of Todoroki River mouth have resulted that living corals such as massive Polites species have changed to dead rocks with algae from 1997 to 2001. At the same, the range of covered with living coral, the life style of corals, regenerated conditions, the number of individual corals were examined along with it. It was recognized that the aggravation of coral reef environment progressed on the whole due to the progress of the past ten years.
The influence which the soil runoff and washload from Todoroki River gave to it was explained at the period. And, it was proved that even the point where the growth of coral was good suffered big damage due to the bleaching in 1998. It became clear that the recovery of corals weren't sufficient from coral bleaching.

Report

(5 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (19 results)

All 2001 1999 1998 Other

All Journal Article (12 results) Publications (7 results)

  • [Journal Article] イノーに生きる民俗世界2001

    • Author(s)
      目崎 茂和
    • Journal Title

      エコソフィア 7

      Pages: 10-16

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] 風水から見た八重山の土地利用のあり方2001

    • Author(s)
      目崎 茂和
    • Journal Title

      赤土問題ワークショップ講演録 (WWFサンゴ礁保護研究センター)

      Pages: 30-34

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] 「土地改良事業」に起因するサンゴ礁地域の環境悪化2001

    • Author(s)
      長谷川 均
    • Journal Title

      赤土問題ワークショップ講演録 (WWFサンゴ礁保護研究センター)

      Pages: 4-13

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] Traditional Cultures at Shallow Coral Lagoons2001

    • Author(s)
      Mezaki, S.
    • Journal Title

      ECOSOPHIA No.7

      Pages: 10-16

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] Land-use Methods of Yaeyama Is from a viewpoint of Feng Shui2001

    • Author(s)
      Mezaki, S.
    • Journal Title

      Workshop Reports of Redsoil Pollution, WWF-Japan

      Pages: 30-34

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] Environmental Damages of Coral Island Area Due to Land Reforming Projects2001

    • Author(s)
      Hasegawa, H
    • Journal Title

      Workshop Reports of Redsoil Pollution, WWF-Japan

      Pages: 4-13

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] 石垣島における1998年のサンゴ礁の広範な白化1999

    • Author(s)
      長谷川 均, 目崎 茂和ほか
    • Journal Title

      Galaxea(JCRS、日本サンゴ礁学会誌) 1・1

      Pages: 31-39

    • NAID

      40005255826

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] 風水は環境学のルーツ1999

    • Author(s)
      目崎 茂和
    • Journal Title

      サイアス(朝日新聞社) 4・6

      Pages: 66-70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] The mass-bleaching of coral reefs in the Ishigaki Lagoons, 19981999

    • Author(s)
      Hasegawa, H, Mezaki, S et al.
    • Journal Title

      Galaxea, Japan Coral Reefs Society Vol.1, No.1

      Pages: 31-39

    • NAID

      130003670717

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] Feng shui as an Origin of Environment Thought1999

    • Author(s)
      Mezaki, S.
    • Journal Title

      SCIaS Vol.4, No.6

      Pages: 66-70

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] 海の温暖化の始まりか?今夏のサンゴ白化現象1998

    • Author(s)
      目崎 茂和
    • Journal Title

      2001Fora(市民フォーラム2001) 37

      Pages: 5-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Journal Article] Mass Coral Breaching, 1999 and Beginning of Global Marine Warming1998

    • Author(s)
      Mezaki, S.
    • Journal Title

      2001 Fora No.37

      Pages: 5-6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 長谷川均,目崎茂和 ほか: "石垣島における1998年のサンゴ礁の広範白化"Galaxea日本サンゴ礁学会. 1. 31-39 (1990)

    • Related Report
      2000 Annual Research Report
  • [Publications] 目崎茂和: "衰退するイノー環境と民俗"エコソフィア. 7. 8-13 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 長谷川均、目崎茂和等: "石垣島における1998年のサンゴ礁の広範な白化"Galaxea (日本サンゴ礁学会誌). 1・1. 31-39 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 目崎茂和: "世界に広がるサンゴの白化"グラフこんにちは. 328号. 30-31 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 目崎茂和: "風水は環境学のルーツ―石垣島の村落とサンゴ礁"サイアス. 4・6. 66-70 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 長谷川均: "琉球列島石垣島白保サンゴ礁でみられるマイクロアトール"国士館大学地理学報告. 7号. 1-24 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 長谷川均、目崎茂和: "石垣島サンゴ礁調査"WWF. 266号. 1-9 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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