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Título: | Coastal-offshore exchange of organic matter across the Cape Ghir filament (NW Africa) during moderate upwelling |
Autor: | Santana-Falcón, Yeray; Benavides, Mar; Sangrà, Pablo; Mason, Evan CSIC ORCID; Barton, Eric D. CSIC ORCID; Orbi, A.; Arístegui, Javier | Palabras clave: | Upwelling filaments Coastal-offshore transport Cape Ghir NW Africa Excess total organic carbon |
Fecha de publicación: | 1-feb-2016 | Editor: | Elsevier | Citación: | Journal of Marine Systems 154(Part B): 233-242 (2015) | Resumen: | The net coastal-ocean export of particulate organic carbon (POC), dissolved organic carbon (DOC) and chlorophyll a is studied in August 2009 at the Cape Ghir filament, a recurrent feature located within the NW African upwelling system. The estimated flux of excess total organic carbon (the non-refractory pools of DOC and POC) is about 2.1 × 109kg C y-1. DOC represents ~70% of the excess organic carbon in August 2009, during moderate upwelling. Assuming that this flux is representative of the range within a typical year, the yearly offshore net transport of total organic carbon would represent at least 29% of the primary production in this area. Since the Cape Ghir filament may extend hundreds of kilometers offshore, the associated seaward flux of organic carbon would contribute to the high microbial respiration rates reported from the nearby oligotrophic open ocean region. Our results illustrate that, when considering the regional carbon budgets of eastern boundary regions, it is imperative to take account of the offshore transport of organic matter in the numerous and recurrent upwelling filaments. © 2015 Elsevier B.V. | Versión del editor: | http://dx.doi.org/10.1016/j.jmarsys.2015.10.008 | URI: | http://hdl.handle.net/10261/132460 | DOI: | 10.1016/j.jmarsys.2015.10.008 | Identificadores: | doi: 10.1016/j.jmarsys.2015.10.008 issn: 0924-7963 |
Aparece en las colecciones: | (IMEDEA) Artículos (IIM) Artículos |
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