http://www.cnr.it/ontology/cnr/individuo/prodotto/ID6956

Role of physical forcings and nutrient availability on the control of satellite-based chlorophyll a concentration in the coastal upwelling area of the Sicilian Channel (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Role of physical forcings and nutrient availability on the control of satellite-based chlorophyll a concentration in the coastal upwelling area of the Sicilian Channel (Articolo in rivista) (literal)

Anno

2010-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.3989/scimar.2010.74n3577 (literal)

Alternative label

B. PATTI; C. GUISANDE; A. BONANNO; G. BASILONE; A. CUTTITTA; S. MAZZOLA (2010)
Role of physical forcings and nutrient availability on the control of satellite-based chlorophyll a concentration in the coastal upwelling area of the Sicilian Channel
in Scientia marina; Instituto De Ciencias Del Mar Barcelona, Barcelona (Spagna)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

B. PATTI; C. GUISANDE; A. BONANNO; G. BASILONE; A. CUTTITTA; S. MAZZOLA (literal)

Pagina inizio

577 (literal)

Pagina fine

588 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

ISSN: 0214-8358 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1185/1233 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

74 (literal)

Rivista

Scientia marina (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

3 (literal)

Note

Scopus (literal)
ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

1 Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Sede di Capo Granitola, via del Mare 3, 91021 Campobello di Mazara (TP), Italy. E-mail: bernardo.patti@cnr.it 2 Facultad de Ciencias, Campus Universitario Lagoas-Marcosende, Universidad de Vigo, 36310-Vigo, Spain. (literal)

Titolo

Role of physical forcings and nutrient availability on the control of satellite-based chlorophyll a concentration in the coastal upwelling area of the Sicilian Channel (literal)

Abstract

Importancia de los fenómenos físicos y la disponibilidad de nutrientes en el control de la concentración de clorofila estimada por satélite en el área costera de afloramiento del Canal de Sicilia. - El sector norte del Canal de Sicilia es un área de vientos favorables para el afloramiento, lo cual debe favorecer la producción primaria. Sin embargo, los valores de producción primaria son bajos comparados con otras áreas del Mediterráneo y muy bajos comparados con las regiones biológicamente más productivas de los océanos a nivel mundial: California, Canarias, Humboldt y Benguela. El objetivo de este estudio fue identificar los principales factores que limitan la biomasa del fitoplancton y modulan sus cambios mensuales. Comparamos estimas de la concentración de clorofila a basadas en satélite en el estrecho de Sicilia, con las observadas en los cuatro sistemas orientales de afloramiento mencionados anteriormente y en otros sistemas costeros del Mediterráneo en los que el viento favorece los afloramientos (Mar del Alborán, Golfo de León y Mar Egeo). Nuestros resultados muestran que la baja producción primaria es debida principalmente a la baja entrada de nutrientes en aguas superficiales, independientemente de la intensidad del afloramiento causado por el viento. Por otro lado, los cambios mensuales en la producción primaria se deben a la mezcla de la columna de agua y afloramientos asociados al viento y/o procesos de circulación en la zona. Finalmente, la limitación de la producción primaria debida al aumento del proceso de estratificación resultante de la tendencia general de calentamiento de las aguas del Mediterráneo, no es activa a lo largo de la mayor parte del área de afloramiento en la costa sur de Sicilia. (literal)
The northern sector of the Sicilian Channel is an area of favourable upwelling winds, which ought to support primary production. However, the values for primary production are low when compared with other Mediterranean areas and very low compared with the most biologically productive regions of the world's oceans: California, the Canary Islands, Humboldt and Benguela. The aim of this study was to identify the main factors that limit phytoplankton biomass in the Sicilian Channel and modulate its monthly changes. We compared satellite-based estimates of chlorophyll a concentration in the Strait of Sicily with those observed in the four Eastern Boundary Upwelling Systems mentioned above and in other Mediterranean wind-induced coastal upwelling systems (the Alboran Sea, the Gulf of Lions and the Aegean Sea). Our results show that this low level of chlorophyll is mainly due to the low nutrient level in surface and sub-surface waters, independently of wind-induced upwelling intensity. Further, monthly changes in chlorophyll are mainly driven by the mixing of water column and wind-induced and/or circulation-related upwelling processes. Finally, primary production limitation due to the enhanced stratification processes resulting from the general warming trend of Mediterranean waters is not active over most of the coastal upwelling area off the southern Sicilian coast (literal)

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