Vertical distribution of dissolved organic carbon (DOC) in the Western Mediterranean Sea in relation to the hydrological characteristics |
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| Authors: | C Santinelli G P Gasparini L Nannicini A Seritti |
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| Institution: | 1. Euskal Herriko Unibertsitatea Zientzia eta Teknologia Fakultate Estratigrafia eta Paleontologia Saila, Barrio Sarriena, s/n 48940 Leioa (Bizkaia), Spain;2. Departamento de Geología, Facultad de Ciencias Químicas, Universidad de Salamanca, Plaza de los caídos s/n, 37003 Salamanca, Spain;3. Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Spain;1. Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland;2. Faculty of Earth Sciences and Spatial Management, Maria Curie-Skłodowska University in Lublin, 2cd Kraśnicka Ave., 20-718 Lublin, Poland |
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| Abstract: | Vertical profiles of dissolved organic carbon (DOC) from eight hydrological stations in the Tyrrhenian Sea, Sardinia Channel and Algerian Sea, are reported. DOC exhibits concentrations ranging from 58 to 88 μM in surface water, 43–57 μM in the intermediate layer and 49–63 μM in deep waters. The assessment of the hydrological characteristics allows different water masses in the study area to be identified; moreover, different hydrological processes are observed in the Tyrrhenian and Algerian basins. DOC exhibits different values in the different water masses. The lowest DOC concentrations (43–46 μM) were found in the Tyrrhenian Levantine Intermediate Water (LIW). Correlations between DOC and apparent oxygen utilization (AOU), investigated within each water mass, exhibit different behaviors in the intermediate and deep waters, suggesting the occurrence of different processes of oxygen consumption in the different water masses. |
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| Keywords: | DOC AOU Water masses Western Mediterranean Sea |
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