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Development of the method for dynamic detection and analysis of environmental pollutants based on the study of feeding ecology of coastal fishes with high degree of environmental sensitivity

Research Project

Project/Area Number 14580557
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionNational Institute of Advanced Industrial Science and Technology (AIST)

Principal Investigator

YAMAMURO Masumi  National Institute of Advanced Industrial Science and Technology (AIST), Institute for Maine Resources and Environment, Senior researcher, 海洋資源環境研究部門, 主任研究員 (80344208)

Co-Investigator(Kenkyū-buntansha) ISHITOBI Yu  Shimane Prefectural Institute of Public Health and Environmental Science, Department of Aquatic Environment, Department Chief, 水環境科, 科長
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2002: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsKonoisirus punkutatus / dioxin / Lake Shinji / stable isotope ratios / gonad
Research Abstract

To examine if the mass mortality of Konoisirus punkutatus at Lake Shinji in summer is caused by contamination of dioxin, we collected Konoisirus punkutatu using set nets. Dead floating fishes due to mass mortality were also collected near the east set nets in June. All the June samples were floating dead fishes. Five fishes were collected at the west set nets in December. As K. punctatus grows, it would accumulate more dioxins. However, neither body length nor total weight showed significant correlation. Some April samples and floating fishes in June showed more TEQ than the same size fishes collected in December. This may support the above hypothesis. Fishes more contaminated by dioxins may become weak to environmental stress and die off in summer. GSI expresses the degree of exhaustion due to spawning. It is calculated as follows.
GSI=Gonad weight (g)/Total weight (g)x10^2
The GSI of floating dead fishes in June were not considerably smaller than the samples in April. We additionally sampled 37 dead fishes and 35 live fishes of three years old, and compared the body length, body weight, gonad weight, GSI, and F (F=body weight/(body length)^3x10^6). Unpaired t-test suggested that they are not different between dead and live fishes. This may suggest that fishes more contaminated dioxins are easily dead after the spawning.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Naito, W., Nakanishi, J., Yamamuro, M., Masunaga, S., Jin, J., Kang, Y.: "Dynamics of PCDDs/DFs and coplanar-PCBs in an aquatic food chain of Tokyo Bay"Chemoshpere. 53・4. 347-362 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 金井豊, 山室真澄, 井内美郎, 徳岡隆夫: "島根・鳥取県中海における堆積速度と堆積環境"地球化学. 36. 161-178 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 石飛裕, 平塚純一, 桑原弘道, 山室真澄: "異なる塩分濃度を有する富栄養化した隣接汽水湖における魚類相の比較"海洋と生物. 25・5. 398-404 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Naito, W., Nakanishi, J., Yamamuro, M., Masunaga, S., Jin, J., Kang, Y.: "Dynamics of PCDDs/DFs and coplanar-PCBs in an aquatic food chain of Tokyo Bay."Chemosphere. 53-4. 347-362 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ishitobi, Y., Hiratsuka, J., Kuwabara, H., Yamamuro, M.: "Comparison of fish fauna in three areas of adjacent eutrophic estuarine lagoons with different salinities."Aquabiology. 25-5. 398-404 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kanai, Y., Yamamuro, M., Inouchi, Y., Tokuoka, T.: "Sedimentation rate and environment of Lake Nakaumi, Shimane and Tottori Prefectures."Chikyukagaku (Geochemistry). 36. 161-178 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Naito, W., Nakanishi, J., Yamamuro, M., Masunaga, S., Jin, J., Kang, Y.: "Dynamics of PCDDs/DFs and coplanar-PCBs in an aquatic food chain of Tokyo Bay"Chemosphere. 53・4. 347-362 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 石飛裕, 平塚純一, 桑原弘道, 山室真澄: "異なる塩分濃度を有する富栄養化した隣接汽水湖における魚類相の比較"海洋と生物. 25・5. 398-404 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naito, W., Nakanishi, J., Yamamuro, M., Masunaga, S., Jin, J., Kang, Y.: "Dynamics of PCDDs/DFs and coplanar-PCBs in an aquatic food chain of Tokyo Bay"Chemosphere. (印刷中). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 金井豊, 山室真澄, 井内美郎, 徳岡隆夫: "島根・鳥取県中海における堆積速度と堆積環境"地球化学. 36. 161-178 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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