The Source, Cycling, and Behavior of Chromophoric Dissolved Organic Matter in Coastal Waters
نویسندگان
چکیده
Our long term research goal is to ascertain the nature and magnitude of optical effects (absorbance / fluorescence / scattering) in surface seawaters associated with the production and cycling of marine colloidal organic matter. We are particularly interested in determining how these effects are driven or modulated by the productivity dynamics of phytoplankton and marine heterotrophic bacteria in coastal regions not directly influenced by high riverine inputs of terrestrially-derived materials.
منابع مشابه
Chromophoric and fluorescent dissolved organic matter in and above the oxygen minimum zone off Peru
As a result of nutrient upwelling, the Peruvian coastal system is one of the most productive regions in the ocean. Sluggish ventilation of intermediate waters, characteristic for the Eastern Tropical South Pacific (ETSP) and microbial degradation of a high organic matter load promotes deoxygenation at depth. Dissolved organic matter (DOM) plays a key role in microbial respiration and carbon cyc...
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The long-term goal of the project is to investigate the distributions of chromophoric dissolved organic matter (CDOM) in the New York/New Jersey Harbor and New York Bight system so as to facilitate a deeper understanding of the source and processes that control CDOM distributions in estuarine and coastal waters. CDOM source strengths and photochemical degradation processes were incorporated int...
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Citation: Fichot CG, Benner R, Kaiser K, Shen Y, Amon RMW, Ogawa H and Lu C-J (2016) Predicting Dissolved Lignin Phenol Concentrations in the Coastal Ocean from Chromophoric Dissolved Organic Matter (CDOM) Absorption Coefficients. Front. Mar. Sci. 3:7. doi: 10.3389/fmars.2016.00007 Predicting Dissolved Lignin Phenol Concentrations in the Coastal Ocean from Chromophoric Dissolved Organic Matter ...
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The origin of dissolved organic matter (DOM) within sea ice in coastal waters of the Baltic Sea was investigated using parallel factor (PARAFAC) analysis of DOM fluorescence. Sea ice DOM had distinctly different fluorescence characteristics than that of the underlying humic-rich waters and was dominated by protein-like fluorescence signals. PARAFAC analysis identified five fluorescent component...
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Chromophoric dissolved organic matter (CDOM) represents the optically active fraction of the bulk dissolved organic matter (DOM) pool. Recent evidence pointed towards a microbial source of CDOM in the aquatic environment and led to the proposal that phytoplankton is not a direct source of CDOM, but that heterotrophic bacteria, through reprocessing of DOM of algal origin, are an important source...
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