Past and present of aquatic foodweb structure : the new aspects from compound specific nitrogen isotope ratios of amino acids

• Project/Area Number: 19770022
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Ecology/Environment
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: OGAWA Nanako Japan Agency for Marine-Earth Science and Technology, 地球内部変動研究センター, 技術研究主任 (80359174)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,830,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2007: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: 生態系 / 近過去生態系変動 / アミノ酸 / 窒素安定同位対比 / 食物連鎖 / 栄養段階 / 窒素安定同位体比 / 湖沼環境 / 窒素循環 / 安定同位体比

Research Abstract

「アミノ酸化合物の窒素同位体比」による水域生物の食物網解析手法について、化学固定保存の影響が分析誤差の範囲内であり、標本試料からの生態系構造復元が可能であることを確認した。また実際の湖沼・河川生態系生物への応用研究により、長期観測を行わずとも、数匹の魚類試料の採取・分析により、その魚類の栄養段階の推定が可能であることを示した。

Research Products

• [Journal Article] Instrumental optimization for compound-specific nitrogen isotope analysis of amino acids by gas chromatography/combustion/isotope ratio mass spectrometry (2009)
  • Author(s): Chikaraishi Y, Takano Y, Ogawa NO, Ohkouchi N
  • Journal Title: Earth, Life, and Isotopes (eds Ohkouchi N, Tayasu I, Koba K)(Kyoto University Press, Kyoto) (印刷中)
  • Peer Reviewed
• [Journal Article] Reconstructing the life history of modern and fossil nautiloids based on nitrogen isotopic composition of the shell organic matters and amino acids (2009)
  • Author(s): Kashiyama Y, Ogawa NO, Chikaraishi Y, Kashiyama N, Tanabe K, Ohkouchi N
  • Journal Title: Proceedings of the 7th International Symposium of Cephalopod -Present and Past (印刷中)
  • Peer Reviewed
• [Journal Article] Reconstructing the life history of modern and fossil nautiloids based on nitrogen isotopic composition of the shell organic matters and amino acids (2009)
  • Author(s): Kashiyama, Y.
  • Journal Title: Proceedings of the 7^<th> International Symposium of Ceph alopod -Present and Past (印刷中)
  • Peer Reviewed
• [Journal Article] Metabolic control of nitrogen isotope composition of amino acids in macroalgae and gastropods : implications for aquatic food web studies (2007)
  • Author(s): Chikaraishi Y, Kashiyama Y, Ogawa NO, Kitazato H, Ohkouchi N
  • Journal Title: Marine Ecology Progress Series 342 Pages: 85-90
  • Peer Reviewed
• [Journal Article] 生態学指標としての安定同位体:アミノ酸の窒素同位体分析による新展開 (2007)
  • Author(s): 力石嘉人, 柏山祐一郎, 小川奈々子, 大河内直彦
  • Journal Title: RADIOISOTOPES 56 Pages: 463-477
  • NAID: 10019840934
• [Journal Article] Metabolic control of nitrogen isotope composition of amino acids in macroalgae and gastroPods:implicatiolls for aquatic food web studies (2007)
  • Author(s): Yoshito Chikaraishi
  • Journal Title: Marine Ecology Progress Series 342 Pages: 85-90
  • Peer Reviewed
• [Presentation] アミノ酸分子レベル窒素同位体比を用いた食物網解析の原理と応用 (2008)
  • Author(s): 力石嘉人
  • Organizer: 日本古生物学会
  • Place of Presentation: 東京・東京大学
  • Year and Date: 2008-09-18
• [Presentation] アミノ酸分子レベル窒素同位体比を用いた食物網解析の原理と応用 (2008)
  • Author(s): 柏山祐一郎
  • Organizer: 有機地球化学会
  • Place of Presentation: 名古屋・名古屋大学
  • Year and Date: 2008-07-24
• [Presentation] 北里洋アミノ酸の窒素同位体比を用いた新しい古食性解析法:応用と展望 (2008)
  • Author(s): 柏山祐一郎
  • Organizer: 日本古生物学会
  • Place of Presentation: 仙台・東北大学
  • Year and Date: 2008-07-04
• [Presentation] アミノ酸の窒素同位体比を用いた新しい古食性解析法:原理 (2008)
  • Author(s): 大河内直彦
  • Organizer: 日本古生物学会2007年年会
  • Place of Presentation: 仙台・東北大学
  • Year and Date: 2008-07-04
• [Presentation] アミノ酸の窒素同位体比を用いた新しい古食性解析法:原理 (2008)
  • Author(s): 大河内直彦
  • Organizer: 日本古生物学会
  • Place of Presentation: 仙台・東北大学
  • Year and Date: 2008-07-04
• [Presentation] アミノ酸の窒素同位体比を用いた新しい古食性解析法:応用と展望 (2008)
  • Author(s): 柏山祐一郎
  • Organizer: 日本古生物学会
  • Place of Presentation: 仙台・東北大学
  • Year and Date: 2008-07-04
• [Presentation] 有機化合物の分子レベル安定窒素同位体比分析による地球環境解析-2:アミノ酸 (2007)
  • Author(s): 力石嘉人
  • Organizer: 日本地球化学会年会
  • Place of Presentation: 岡山大学
  • Year and Date: 2007-09-20
• [Presentation] Reconstructing the life history of modern and fossil nautiloids based on nitrogen isotopic composition of the shell organic matters and amino acids (2007)
  • Author(s): Kashiyama Y
  • Organizer: 7th International Symposium - Cephalopods Present and Past
  • Place of Presentation: Sapporo (Japan)
  • Year and Date: 2007-09-15
• [Presentation] Stable nitrogen isotopic composition of amino acids:implications foraquatic food web studies (2007)
  • Author(s): Chikaraishi Y.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: ドイッ・ケルン
  • Year and Date: 2007-08-24
• [Presentation] Reconstruction of the past biogeochemical cycles based on compound-specific N and C isotopic analyses of sedimentary porphyrins (2007)
  • Author(s): Chikaraishi Y
  • Organizer: 17th Annual V. M. Goldschmidt Conference
  • Place of Presentation: Cologne (Germany)
  • Year and Date: 2007-08-20
• [Presentation] 有機化合物レベル窒素安定同位体組成分析を応用した古生態解析の手法とその可能性 (2007)
  • Author(s): 柏山祐一郎
  • Organizer: 日本古生物学会2007年年会
  • Place of Presentation: 大阪・大阪市立大学
  • Year and Date: 2007-06-30