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1999 Fiscal Year Final Research Report Summary

Bio phile element composition and species composition of marine phytoplaskton

Research Project

Project/Area Number 09440191
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 地球化学
Research InstitutionNagoya University

Principal Investigator

MASUZAWA Toshiyuki  Nagoya Univ, IHAS, Assoc.Prof., 大気水圏科学研究所, 助教授 (40023858)

Co-Investigator(Kenkyū-buntansha) HAMA Takeo  Tsukuba Univ, Bid.Sci., Assoc Prof., 生物科学系, 助教授 (30156385)
SUZUKI Koji  Nagoya Univ, IHAS, Ros Assoc., 大気水圏科学研究所, 助手 (40283452)
Project Period (FY) 1997 – 1999
Keywordsphytoplankton / Trace elements / major component / Pigments / ICP-AES / Activation anlysis / North Pacific
Research Abstract

Products of biological production by phytoplankton (organic matter, calcium carbonate and opal) in the euphotic layer of the oceans are starting materials from material cycling of both major (N, P, Si, Ca, etc.) and minor biophile elements in the oceans. The data on elemental compositions from major to trace elements of these marine biological products have been quite limited. The purposes of this study are : to collect marine phytoplankton samples from the subarctic north Pacific and Bering Sea area with a specially designed non-metal NORPAC net, to develop a simple stepwize leaching method for major component analysis and for fractionation of major and trace elements into each major component phases, to obtain multi-element compositions of marine phytoplanlkton samples and to compare the elemental composition and species composition of phytoplankton samples.
We sampled phytoplankton samples mainly composed of diatom with a size range of 25-335 μm from the subarctic North Pacific and Bering Sea area, developed a simple stepwize leaching method to analyze sea salt, calcium carbonate, organic matter, opal and residual aluminosilicate, determined the fractionation of major and trace elements in to these major components. Species compositions of these phytoplankton samples were identified microscopically. As the results we showed the 12 major and trace element compositions in biogenic phase of these samples and estimated the association of these elements with biogenic phases. The analytical method developed here will become an effective method to clarify the behaviors of these elements associating with biological production in marine environments.

  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Hama, T.: "Fatty acid composition of particulate matter and photosynthetic productsin subarctic and subtropical pacific."J.Plankton Res.. 21. 1355-1372 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitazato,H. et al.: "Seasonal phytodetritus deposition and responses of bathyal benthic toraminiferal populations in Sagami Bay, Japan."Mar.Micropaleontal.. 40. 135-149 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hama,T.: "Production and turnover of organic matter through phytoplonktor photosynthesis"Dynamics and Characterization of Marine Organci Matter. N.Handa et al. eds. Terra Sci.Publishing, Tokyo. 1-38 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masuzawa,T. et al.: "Multi-element compositions of mavine phytoplanktor samples from coastal areas of Japan by instrumental neutron activation analysis."Biological Trace Element Res.. 71/72. 331-342 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Obayashi,Y.et al.: "Spacial and temporal variabilities of phytoplanktor coimmunity structure in the northern North Pacitic as determined by phytoplanktor pigments."Deep-Sea Res.I.. 48. 439-469 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 増澤敏行: "海洋堆積物系の化学"海洋化学研究. 10・2. 104-152 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masuzawa, T.: "Chemistry of marine sedimentary system."Trans.Res.Inst.Oceano-chemistry. 10. 104-152 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuzawa, T., T.Suzuki, K.Seki, T.Kosuge, Y.Hibi, M.Yamamoto, J.Takada, R.Matsushita and M.Yanda: "Multi-element compositions of marine phytoplankton samples from coastal areas of Japan by instrumental neutron activation analysis."Biological Trace Element Research. 71/72. 331-342 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hama, T.: "Fatty acid composition of particulate matter and photosynthetic products in subarctic and subtropical Pacific."J.Plankton Res.. 21. 1355-1372 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitazato, H.Y.Shirayama, T.Nakatsuka, S.Fujiwara, M.Shimanaga, Y.Kato, Y.Okada, J.Kanda, A.Yamaoka, T.Masuzawa, and K.Suzuki: "Seasonal phytodetritus deposition and responses of bathyal benthic foraminiferal populations in Sagami Bay, Japan."Mar.Micropaleontol.. 40. 135-149 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shin, K.H., T.Hama, T., Yoshie, N., Noriki, S.and Tsunogai, S.: "Dynamics of fatty acids in newly biosynthesized phytoplandton cells and seston during a spring bloom off the west coast off Hokkaido Island, Japan."Mar.Chem.. 70. 243-256 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hama, T.: "Production and turnover of organic matter through phytoplankton photosynthesis."Dynamics and Characterization of Marine Organic Matter, N.Handa et al.(eds.), Terra Scientific Publishing, Todyo. 1-38 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sohrin, Y., S.Iwamoto, M.Matsui, H.Obata, E.Nakayama, K.Suzuki, N.Handa, and M.Ishii: "The distribution of Fe in the Australian sector of the Southern Ocean."Deep-Sea Res.. 1.. 47,55-84 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Suzuki, K., H.Liu, C.Minami, and T.Saino: "Photosynthetic potential of phytoplankton in the subarcric Pacific as estimated by active fluorescence technique."Ocean Optics XV.CD-ROM paper no.1153, the Office of Naval Research, Ocean, Atmosphere, and Space S&T Department. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Obayashi, Y., E,Tanoue, K.Suzuki, N.Handa, Y.Nojiri and C.S.Wong: "Spatial and temporal variabilities of phytoplankton community structure in the northern North Pacific as determined by phyto-plankton pigments."Deep-Sea Res.. 1, 48. 439-469

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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