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Oceanographic and meteorological forcing of the pelagic ecosystem on the Gulf of Cadiz shelf (SW Iberian Peninsula)

AuthorsPrieto, Laura ; Navarro, Gabriel ; Rodríguez-Gálvez, Susana ; Huertas, I. Emma ; Naranjo, J. M.; Ruiz Segura, Javier
KeywordsGulf of Cadiz
Continental shelf
Suspended matter
Chlorophyll>20 μm
Issue Date22-Aug-2009
CitationContinental Shelf Research 29(17): 2122-2137 (2009)
AbstractThe spatial and temporal distribution of physical, chemical and biological variables of the NE continental shelf of the Gulf of Cadiz were analyzed monthly during almost three annual cycles. This analysis was performed with the aim of deriving the main forcing factors controlling variability at inter-annual, seasonal and short-time scales. Meteorological forcing related to heavy episodes of rainfall that affected river discharges and the wind regime, controlled both the currents along the shelf together and the nutrient concentrations of the surface waters. Meteorological forcing in turn determined the subsequent development and maintenance of phytoplankton blooms. Superimposed on the seasonal cycle typical of temperate latitudes, the inputs of continental nutrients mainly from the Guadalquivir River, along with episodes of upwelling favored by the predominance of westerly winds triggered phytoplankton growth on the shelf, highlighting the markedly relevant role of this large estuary in the control of the biological activity on the shelf.
Description16 páginas, 14 figuras, 2 tablas.
Publisher version (URL)http://dx.doi.org/10.1016/j.csr.2009.08.007
Appears in Collections:(ICMAN) Artículos
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