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Study on dynamics of labile dissolved organic phosphorus in phosphate-depleted marine environments

Research Project

Project/Area Number 22710006
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Environmental dynamic analysis
Research InstitutionTokyo University of Marine Science and Technology

Principal Investigator

HASHIHAMA Fuminori  東京海洋大学, 海洋科学部, 助教 (80535807)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords化学海洋 / リン / 易分解性溶存有機態リン / 西部北太平洋 / 亜熱帯海域 / アルカリフォスファターゼ / 高感度分析
Research Abstract

A potential importance of labile dissolved organic phosphorus(LDOP) as a P source for microorganisms was evaluated in the phosphate-depleted waters of the western subtropical North Pacific. Application of highly sensitive colorimetric analysis enabled to detect horizontal distributions of LDOP and other P forms. Distribution pattern of LDOP was similar to that of phosphate, suggesting that LDOP is important as the P source.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (13 results)

All 2012 2011 2010

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (8 results)

  • [Journal Article] Dissolved phosphorus pools and alkaline phosphatase activity in the euphotic zone of the western North Pacific Ocean2012

    • Author(s)
      M. Suzumura, F. Hashihama, N. Yamada, S. Kinouchi
    • Journal Title

      Frontiers in Microbiology

      Volume: 3

    • DOI

      10.3389/fmicb.2012.00099

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Occurrence of rain-origin nitrate patches at the nutrient-depleted surface in the East China Sea and the Philippine Sea during summer2011

    • Author(s)
      Kodama, T., et al
    • Journal Title

      Journal of Geophysical Research

      Volume: 116 Issue: C8 Pages: 1-14

    • DOI

      10.1029/2010jc006814

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Light acclimation states of phytoplankton in the Southern Ocean, determined using photosynthetic pigment distribution2010

    • Author(s)
      F. Hashihama, H. Umeda, C. Hamada, S. Kudoh, T. Hirawake, K. Satoh, M. Fukuchi, Y. Kashino
    • Journal Title

      Marine Biology

      Volume: 157 Issue: 10 Pages: 2263-2278

    • DOI

      10.1007/s00227-010-1494-5

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Distribution ofnano-sized cyanobacteria in the Pacific Ocean2010

    • Author(s)
      M. Sato, F. Hashihama, S. Kitajima, S. Takeda, K. Furuya
    • Journal Title

      Aquatic Microbial Ecology

      Volume: 59 Issue: 3 Pages: 273-282

    • DOI

      10.3354/ame01397

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Distribution of nano-sized cyanobacteria in the Pacific Ocean2010

    • Author(s)
      M.Sato, F.Hashihama, S.Kitajima, S.Takeda, K.Furuya
    • Journal Title

      Aquatic Microbial Ecology

      Volume: 59 Pages: 273-282

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 貧栄養海域における栄養塩動態と易分解性DOPの役割2011

    • Author(s)
      橋濱史典、木内新子、神田穣太
    • Organizer
      東京大学大気海洋研究所共同利用研究集会
    • Place of Presentation
      東京大学(東京都)
    • Year and Date
      2011-10-03
    • Related Report
      2011 Final Research Report
  • [Presentation] 貧栄養海域における栄養塩動態と易分解性DOPの役割2011

    • Author(s)
      橋濱史典、木内新子、神田穣太
    • Organizer
      東京大学大気海洋研究所共同利用研究集会
    • Place of Presentation
      東京大学(東京都)(招待講演)
    • Year and Date
      2011-10-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] 西部北太平洋亜熱帯海域における易分解性DOPの空間分布2011

    • Author(s)
      木内新子、橋濱史典、神田穣太
    • Organizer
      日本海洋学会
    • Place of Presentation
      九州大学(福岡県)
    • Year and Date
      2011-09-27
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 貧栄養海域におけるリン動態解析-高感度分析によるアプローチ-2011

    • Author(s)
      橋濱史典、木内新子、神田穣太
    • Organizer
      日仏海洋学会
    • Place of Presentation
      日仏会館(東京都)
    • Year and Date
      2011-06-18
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 湿式酸化法を用いた溶存全窒素測定における塩化物および臭化物イオンの影響2011

    • Author(s)
      鈴木亘、橋濱史典、神田穣太
    • Organizer
      日本海洋学会
    • Year and Date
      2011-03-14
    • Related Report
      2011 Final Research Report
  • [Presentation] 太平洋熱帯・亜熱帯海域表層におけるアンモニウム塩の広域分布2011

    • Author(s)
      児玉武稔、古谷研、橋濱史典、神田穣太
    • Organizer
      日本海洋学会
    • Year and Date
      2011-03-14
    • Related Report
      2011 Final Research Report
  • [Presentation] 太平洋熱帯・亜熱帯海域表層におけるアンモニウム塩の広域分布2011

    • Author(s)
      児玉武稔、古谷研、橋濱史典、神田穣太
    • Organizer
      2011年度日本海洋学会春季大会
    • Place of Presentation
      (東北関東大震災のため、講演要旨集での発表となった)
    • Year and Date
      2011-03-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 湿式酸化法を用いた溶存全窒素測定における塩化物および臭化物イオンの影響2011

    • Author(s)
      鈴木亘、橋濱史典、神田穣太
    • Organizer
      2011年度日本海洋学会春季大会
    • Place of Presentation
      (東北関東大震災のため、講演要旨集での発表となった)
    • Year and Date
      2011-03-14
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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