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Artículo

Primary production in the Argentine Sea during spring estimated by field and satellite models

Lutz, Vivian A.; Segura, Valeria; Dogliotti, Ana InésIcon ; Gagliardini, Domingo AntonioIcon ; Bianchi, Alejandro Ariel; Balestrini, Carlos
Fecha de publicación: 10/2010
Editorial: Oxford University Press
Revista: Journal of Plankton Research
ISSN: 0142-7873
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Oceanografía, Hidrología, Recursos Hídricos

Resumen

In satellite images of the world ocean the Argentine Sea is one of the areas of highest chlorophyll-a (Chl a) concentration. Here we analyze the spatial variability in primary production in relationship to phytoplankton biomass, and some relevant optical and physical characteristics observed during spring 2005. High Chl a concentrations were found in frontal areas, mainly at the shelf-break (19.0 mg m−3) and Grande Bay (28.6 mg m−3), with the lowest values offshore (0.4 mg m−3). Integrated production also varied widely from ∼275 to 5480 mg C m−2 d−1. Variations in the Chl a/in vivo-fluorescence, and photosynthetic parameters were related to the absorption characteristics of phytoplankton, indicating the influence of variations in the phytoplankton community composition. Surface Chl a explained only 51% of the variance in integrated primary production. Neither integrated production, nor the photosynthetic parameters were significantly related to seawater temperature. The simple satellite model used here resulted in significant underestimation of field primary production values (Absolute Percentage Difference > 50%). Our results indicate that a more adequate satellite model of production, making use of local photosynthetic parameters and vertical distribution of biomass, should be developed for this region.
Palabras clave: Primary Production , Chlorophyll , Remote Sensing , Phytoplankton
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/20456
DOI: http://dx.doi.org/10.1093/plankt/fbp117
URL: https://academic.oup.com/plankt/article/32/2/181/1454047/Primary-production-in-t
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Lutz, Vivian A.; Segura, Valeria; Dogliotti, Ana Inés; Gagliardini, Domingo Antonio; Bianchi, Alejandro Ariel; et al.; Primary production in the Argentine Sea during spring estimated by field and satellite models; Oxford University Press; Journal of Plankton Research; 32; 2; 10-2010; 181-195
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