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Título: | Dimethylated sulfur compounds in seawater, seston and mesozooplankton in the seas around Turkey |
Autor: | Besiktepe, S.; Tang, K.W.; Vila-Costa, Maria CSIC ORCID; Simó, Rafel CSIC ORCID | Palabras clave: | Dimethylsulfoniopropionate Dimethylsulfide Mesozooplankton Black Sea Mediterranean Sea Emission flux |
Fecha de publicación: | sep-2004 | Editor: | Pergamon Press | Citación: | Deep-Sea Research Part I: Oceanographic Research Papers 51(9): 1179-1197 (2004) | Resumen: | The spatial distribution of dimethylated sulfur compounds among particulate, dissolved matter and mesozooplankton in the Black, Marmara, Aegean and NE Mediterranean Seas were studied during October 2000. The surface concentration of particulate dimethylsulfoniopropionate (DMSPp) ranged from 5.4 (NE Mediterranean Sea) to 51.3nM (Marmara Sea), and dimethylsulfoxide (DMSOp) from 0.8 (NE Mediterranean Sea) to 6.2nM (Marmara Sea). Total particulate DMSP and DMSO concentrations from the depth of fluorescence maximum were comparable to or lower than those at the surface. Most of the particulate DMSP and DMSO were associated with particles <18μm. The dissolved dimethylsulfide (DMS)+DMSPd pool in surface waters varied from a minimum of 5nM in the NE Mediterranean Sea to a maximum of 17nM in the Marmara Sea. Values of DMS:chlorophyll a (Chl-a), DMSPp:Chl-a and DMSOp:Chl-a ratios were lower in productive surface waters of the Black Sea and the Marmara Sea than in the oligotrophic waters of the Aegean and NE Mediterranean. None of the dimethylated sulfur compounds correlated significantly with Chl-a in the Black Sea. On the other hand, significantly negative correlation between Chl-a and DMSPp was found in surface waters of Aegean and NE Mediterranean Seas (data from the two seas were combined). We also found no significant correlations between the distribution of any particulate or dissolved dimethylated sulfur compounds and the abundance of mesozooplankton. Mesozooplankton constituted only ≤5% of the total particulate DMSP in the water column. A preliminary estimate for average flux of dimethyl sulfide from the NE Mediterranean basin (including the Black Sea) to the atmosphere is 17.6μmolm-2d-1, indicating the potential importance of NE Mediterranean basin as a source of biogenic sulfur to the atmosphere, even in the less productive period. © 2004 Elsevier Ltd. All rights reserved | Descripción: | 19 pages, 6 figures, 6 tables | Versión del editor: | https://doi.org/10.1016/j.dsr.2004.05.008 | URI: | http://hdl.handle.net/10261/134843 | DOI: | 10.1016/j.dsr.2004.05.008 | Identificadores: | doi: 10.1016/j.dsr.2004.05.008 issn: 0967-0637 e-issn: 1879-0119 |
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