Dissolved Organic Matter in Oceanic Waters |
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Authors: | Hiroshi Ogawa Eiichiro Tanoue |
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Institution: | (1) Ocean Research Institute, University of Tokyo, Minamidai, Nakano-ku, Tokyo 164-8639, Japan;(2) Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chigusa-ku, Nagoya 464-8601, Japan |
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Abstract: | The amount of information on oceanic dissolved organic matter (DOM) has increased dramatically in the last decade thanks to
the advances in chemical characterization. This information has supported the development of some novel and important ideas
for DOM dynamics in the ocean. Consequently, we have a better understanding of the importance of DOM in oceanic biogeochemical
cycles. Here we review studies published mainly during 1995–2001, synthesize them and discuss unsolved problems and future
challenges. The measurement, distribution and turnover of dissolved organic carbon (DOC) are presented as the bulk dynamics
of the oceanic DOM. The size spectrum, elemental composition, and chemical compositions at molecular and functional group
levels are described. The mechanisms proposed for the survival of biomolecules in DOM are discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Dissolved organic matter (DOM) dissolved organic carbon (DOC) carbon cycle molecular weight distribution C:N ratio chemical composition biomolecules |
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