Dynamics of marine humic-like substances and their roles in marine carbon cycle
| Project/Area Number |
19310003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | University of Tsukuba |
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Principal Investigator |
HAMA Takeo University of Tsukuba, 大学院・生命環境科学研究科, 教授 (30156385)
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| Co-Investigator(Kenkyū-buntansha) |
ISHII Masao 気象庁気象研究所, 地球化学研究部, 主任研究員 (70354553)
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| Research Collaborator |
SHIMOTORI Kouichi 筑波大学, 大学院・生命環境科学研究科, 博士課程
OMORI Yuko 筑波大学, 大学院・生命環境科学研究科, 博士課程
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥20,410,000 (Direct Cost: ¥15,700,000、Indirect Cost: ¥4,710,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2008: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2007: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Keywords | 溶存態有機物 / 腐植物質 / 海洋炭素循環 / 西部北太平洋 / バクテリア生成物 / 固相抽出 |
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| Research Abstract |
The fluorescent intensity of marine humic-like substances was higher in mid-deep layer than surface layer, indicating that photo-bleaching is important factor controlling the vertical profile. Photo-bleaching also likely controls the molecular weight composition of humic-like substances. Microbial culture experiments revealed that humic-like substances were produced by bacterial metabolic processes.
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Report
(4 results)
Research Products
(57 results)
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[Journal Article] Spatial variability and decadal trend of the oceanic CO_2 in the western equatorial Pacific wam/fresh water2009
Author(s)
M. Ishii, H. Y. Inoue, T. Midorikawa, S. Saito, T. Tokieda, D. Sasano, A. Nakadate, K. Nemoto, N, Metzl, C. S. Wong, R. A. Feely
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Journal Title
Deep-Sea Resarch II 56
Pages: 591-606
Related Report
Peer Reviewed
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