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DIGITAL.CSIC
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Monitoreo de la calidad de las aguas costeras Atlánticasusando algas y moluscos como bioindicadores de la contaminación

Authors: Blasco, Julián; Laissaoui, Abdelmourhit; Benkdad, Azzouz; Moreno-Garrido, Ignacio; Hampel, Miriam; Macías, Diego; Benmansour, Moncef;

Monitoreo de la calidad de las aguas costeras Atlánticasusando algas y moluscos como bioindicadores de la contaminación

Abstract

Los organismos marinos responden por lo general a los impactos antropogénicos, como exceso de sustancias contaminantes, convirtiéndose así en excelentes indicadores de la calidad del agua. Varios son los estudios que han demostrado que las concentraciones de metales y radionucléidos en las algas y los moluscos reflejan las concentraciones medias de estos en el ambiente donde crecen de tal modo que los organismos pueden usarse como alternativa de monitoreo de la calidad de aguas costeras. En este sentido, se han realizado estudios de biomonitoreo de las aguas Atlánticas de Marruecos y del suroeste de España. Muestras de algas superiores y moluscos han sido recogidas en diferentes regiones de la costa Atlántica de Marruecos y el sur de la Península Ibérica. Se recolectaron diversas especies de algas: Fucus vesiculus, Cystoeira sp., Carolina elongata, Gelidium sp., Ulva lactuca, Codium vermilara, etc. y moluscos: Mytilus galloprovincialis, Patella sp., Ostrea sp., Crassostrea angulata y Scrobicularia plana. Las muestras fueron procesadas en el laboratorio para determinar las actividades específicas de algunos radionucléidos naturales (210Pb, 40K y los isótopos de U) y las concentraciones de metales. Los valores encontrados de las actividades de 40K en las algas estudiadas oscilan entre 500 y 4000 Bq kg-1 de peso seco mostrando una variabilidad interespecífica muy importante, en cuanto a los moluscos las actividades están 300 y 600 Bq kg-1.

Este trabajo ha sido realizado dentro del marco del Proyecto CSIC(España)/CNRST(Marruecos) y del proyecto de la AECID A/031201/10.

Trabajo presentado en el XVI Seminario Ibérico de Química Marina, celebrado en Cádiz del 24 al 26 de enero de 2012.

Peer Reviewed

Country
Spain
Related Organizations
Keywords

Algas, Algae, Radionucléidos, Atlántico, Metals, Metales, Atlantic, Moluscos, Molluscs, Radionuclides

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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