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Distribution, Transport and Accumulation Processes of Anthropogenic Pollutants in Oceanic and Deep-sea Ecosystems

Research Project

Project/Area Number 16380217
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Boundary agriculture
Research InstitutionThe University of Tokyo

Principal Investigator

NISHIDA Shuhei  The University of Tokyo, Ocean Research Institute, Professor, 海洋研究所, 教授 (70134658)

Co-Investigator(Kenkyū-buntansha) TANABE Shinsuke  Ehime University, Center for Maarine Environmental Studies, Professor, 沿岸環境科学研究センター, 教授 (60116952)
OHTA Suguru  The University of Tokuo, Ocean Research Institute, Professor, 海洋研究所, 教授 (10013591)
NISHIKAWA Jun  The University of Tokyo, Ocean Research Institute, Research Associate, 海洋研究所, 助手 (10282732)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥10,100,000 (Direct Cost: ¥10,100,000)
Fiscal Year 2006: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2005: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2004: ¥4,200,000 (Direct Cost: ¥4,200,000)
Keywordsdeep-sea ecosystem / food web / pollutants / trophic level / trace metals / stable-isotope ratio / Sagami Bay / Sulu Sea / 安定同位対比 / 有機スズ化合物 / 有機塩素化合物 / 脂肪酸組成
Research Abstract

To assess the present status of the impact of anthropogenic pollutants on deep-sea ecosystems, investigations were made in the marginal seas of Southeast Asia, the equatorial Pacific, and Sagami Bay, central Japan, and levels of pollutants were analyzed for various ecosystem components, including pelagic- and benthic organisms, marine snow, and bottom sediments with special reference to the ecological properties of the organisms, such as their vertical distributions and trophic levels. The analysis of organotin compunds, organochlorines and polybrominated diphenyl ethers in the Sulu Sea revealed, for the first time, that these compounds are accumulated in the deep-sea animals in the area, while their levels are lower than in the other, more northern areas of the western Pacific. In Sagami Bay, organotin compounds were detected from all deep-sea animals that were analyzed, including mesopelagic micronekton, benthic invertebrates and demersal fishes. The analysis of trace elements and stable-isotope ratios indicated positive correlations of of δ^<15>N with such elements as Hg, Sn, Cs, but negative correlations with others such as Cu, Mo, Ba, indicating different trends of accumulation between organisms of different taxonomic positions and with different physiological/ecological properties. Concurrent investigations on the vertical structure of pelagic assemblages suggested importance of herbivorous copepods, the copepods that feed on marine snow, and fish- and decapod micronekton that perform marked diel vertical migration in the active transport of the pollutants. An analysis of stable-isotope ratios suggested another pathway by which pollutants adsorbed on marine snow derived from surface phytoplankton quickly sink to the bottom to be incorporated into the benthic communities.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (20 results)

All 2007 2006

All Journal Article (13 results) Book (7 results)

  • [Journal Article] Biogeochemistry and biodiversity in the Sulu Sea2007

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

      Deep-Sea Research Part II 54・1-2

      Pages: 1-3

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Biomass, vertical distribution and community structure of mesozooplankton in the Sulu Sea and its adjacent waters2007

    • Author(s)
      Nishikawa, J.
    • Journal Title

      Deep-Sea Research Part II 54・1-2

      Pages: 114-130

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Evaluation of accumulation properties of trace elements in a deep-sea ecosystem of Sagami Bay, Japan by using stable isotope ratios (δ ^<15>N and δ ^<13>C)2007

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

      Proceedings of COE International Symposium, 2006 : Pioneering Studies of Young Scientists on Chemical Pollution and Environmental Changes

      Pages: 225-228

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Biogeochemistry and biodiversity in the Sulu Sea2007

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

      Deep-Sea Research, Part-II 54-1-2

      Pages: 1-3

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Biomass, vertical distribution and community structure of mesozooplankton in the Sulu Sea and its adjacent waters2007

    • Author(s)
      Nishikawa, J.
    • Journal Title

      Deep-Sea Research, Part-II

      Pages: 114-130

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Evaluation of accumulation properties of trace elements in a deep-sea ecosystem of Sagami Bay, Japan by using stable isotope ratios (δ^<15>N and δ^<13>C)2007

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

      Proceedings of COE International Symposium, 2006 : Pioneering Studies of Young Scientists on Chemical Pollution and Environmental Changes

      Pages: 225-228

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Biogeochemistry and biodiversity in the Sulu Sea : Preface2007

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

      Deep-Sea Research Part II 54・1-2

      Pages: 1-3

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biogeochemistry and biodiversity in the Sulu Sea2007

    • Author(s)
      Nishida, S (Editor)
    • Journal Title

      Deep-Sea Research Part II 54・1-2

      Pages: 1-176

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Species diversity and niche-partitioning in the pelagic copepods of the family Scolecitrichidae (Calanoida)2006

    • Author(s)
      Kuriyama, M.
    • Journal Title

      Crustaceana 79・3

      Pages: 293-317

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Community structure and vertical distribution of chaetognaths in the Celebes and Sulu Seas2006

    • Author(s)
      Johnson, T.B.
    • Journal Title

      Coastal Marine Science 30・1

      Pages: 360-372

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Occurrence of organochlorine pesticides, polychlorinated biphenyls and plolybrominated diphenyl ethers in deep-sea fishes from the Sulu Sea2006

    • Author(s)
      Ramu, K.
    • Journal Title

      Marine Pollution Bulletin 52

      Pages: 1827-1832

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Species diversity and niche-partitioning in the pelagic copepods of the family Scolecitrichidae (Calanoida)2006

    • Author(s)
      Kuriyama, M.
    • Journal Title

      Crustaceana 79-3

      Pages: 293-317

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Community structure and vertical distribution of chaetognaths in the Celebes and Sulu Seas2006

    • Author(s)
      Johnson, T.B.
    • Journal Title

      Coastal Marine Science 30-1

      Pages: 360-372

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Biogeochemistry and biodiversity in the Sulu Sea2007

    • Author(s)
      Nishida, S.(Editor)
    • Total Pages
      176
    • Publisher
      Elsevier Ltd.
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Chemical Pollution and Environmental Changes. Proceedings of the International Symposium : Pioneering Studies of Young Scientists on Chemical Pollution and Environmental Changes, November 17-19, 20062007

    • Author(s)
      Tanabe, S. (Editor)
    • Total Pages
      450
    • Publisher
      Universal Academy Press, Inc.
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Biogeochemistry and biodiversity in the Sulu Sea2007

    • Author(s)
      Nishida, S. (Editor)
    • Total Pages
      176
    • Publisher
      Elsevier Ltd.
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Chemical Pollution and Environmental Changes. Proceedings of the International Symposium : Pioneering Studies of Young Scientists on Chemical Pollution and Environmental Changes, November 17-19, 20062007

    • Author(s)
      Tanabe, S. (Editor)
    • Total Pages
      450
    • Publisher
      Universal Academy Press Inc.
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] 深海に暮らす生物の悲鳴-汚染物質による深海生物の危機(海の環境100の危機)2007

    • Author(s)
      西田周平(東京大学海洋研究所編)
    • Total Pages
      232
    • Publisher
      東京書籍
    • Related Report
      2006 Annual Research Report
  • [Book] 深海に暮らす生物の悲鳴-汚染物質による深海生物の危機(海の環境100の危機)2006

    • Author(s)
      西田周平, (東京大学海洋研究所編)
    • Total Pages
      232
    • Publisher
      東京書籍
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Pollution in Deep-Sea Ecosystems (One-hundred Crises in Marine Environment : edited by Ocean Research Institute, The university of Tokyo) (In Japanese)2006

    • Author(s)
      Nishida, S.
    • Total Pages
      232
    • Publisher
      Tokyo Shoseki
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary

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Published: 2004-04-01   Modified: 2016-04-21  

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