Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?

Despite the world-wide expansion of mussel aquaculture, there is still a lack of knowledge of the accumulation of metals in sediments underlying raft polygons. This is addressed in the present study in one of the most productive areas: the Galician rias (50% of total world mussel production). Surfac...

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Autores principales:	Prego, R, Otxotorena, U, Cobelo-García, A
Formato:	info:eu-repo/semantics/article
Lenguaje:	eng
Publicado:	Iniversidad Autónoma de Baja California 2006
Materias:	metals sediments mussel rafts contamination ria NW Spain metal sedimento bateas de mejillón contaminación ría NO España
Acceso en línea:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1100
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id	repositorioinstitucional-20.500.12930-7419
record_format	dspace
spelling	repositorioinstitucional-20.500.12930-74192023-05-09T14:30:57Z Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas? Presencia de Cr, Cu, Fe y Pb en el sedimento bajo las bateas de cultivo de mejillón (Rías de Arosa y Vigo, NO de España): ¿Es un área contaminada por metales? Prego, R Otxotorena, U Cobelo-García, A metals sediments mussel rafts contamination ria NW Spain metal sedimento bateas de mejillón contaminación ría NO España Despite the world-wide expansion of mussel aquaculture, there is still a lack of knowledge of the accumulation of metals in sediments underlying raft polygons. This is addressed in the present study in one of the most productive areas: the Galician rias (50% of total world mussel production). Surface and subsurface sediment samples were taken from the inner, middle and outer polygon zones along the Arosa (2292 mussel rafts) and Vigo (487 rafts) rias. The concentrations measured in the sediment fine fraction ranged from 70 to 154 µg g–1 for Cr, from 25 to 92 µg g–1 for Cu, from 28 to 37 mg g–1 for Fe and from 35 to 239 µg g–1 for Pb. Only a certain contamination was detected in the underlying surface sediments of polygons from the inner (Cu, Pb) and middle (Pb) zones of Vigo Ria; however, the increase in metal concentrations in sediments below rafts depends more on landbased anthropogenic sources than on the presence of mussel rafts or biomagnification processes. A pesar del aumento en los maricultivos de mejillón sigue faltando información sobre la presencia de metales en los sedimentos bajo los polígonos de bateas. Esta cuestión se aborda en el presente artículo para una de las áreas más productivas: las rías gallegas, donde se recoge la mitad del mejillón cultivado a nivel mundial. Se extrajeron muestras de sedimento superficial y subsuperficial bajo polígonos en las zonas interna, media y externa de las rías de Arosa (2292 bateas) y Vigo (487 bateas). Las concentraciones de metales medidas en la fracción fina del sedimento estuvieron en un rango de 70–154 µg g–1 para Cr, 25–92 µg g–1 para Cu, 28–37 mg g–1 para Fe y 35–239 µg g–1 para Pb. Bajo las bateas, solamente se ha detectado contaminación por Cu y Pb en la zona interna y por Pb en la media de la Ría de Vigo. No obstante, el aumento en el contenido de esos metales depende más de su cercanía a las fuentes antropogénicas litorales contaminantes que de la presencia de cultivos de mejillón. 2006-08-21 2021-06-03T03:55:15Z 2021-06-03T03:55:15Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1100 10.7773/cm.v32i22.1100 https://hdl.handle.net/20.500.12930/7419 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1100/1916 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 32 No. 2B (2006); 339-349 Ciencias Marinas; Vol. 32 Núm. 2B (2006); 339-349 2395-9053 0185-3880
institution	Repositorio Institucional
collection	DSpace
language	eng
topic	metals sediments mussel rafts contamination ria NW Spain metal sedimento bateas de mejillón contaminación ría NO España
spellingShingle	metals sediments mussel rafts contamination ria NW Spain metal sedimento bateas de mejillón contaminación ría NO España Prego, R Otxotorena, U Cobelo-García, A Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
description	Despite the world-wide expansion of mussel aquaculture, there is still a lack of knowledge of the accumulation of metals in sediments underlying raft polygons. This is addressed in the present study in one of the most productive areas: the Galician rias (50% of total world mussel production). Surface and subsurface sediment samples were taken from the inner, middle and outer polygon zones along the Arosa (2292 mussel rafts) and Vigo (487 rafts) rias. The concentrations measured in the sediment fine fraction ranged from 70 to 154 µg g–1 for Cr, from 25 to 92 µg g–1 for Cu, from 28 to 37 mg g–1 for Fe and from 35 to 239 µg g–1 for Pb. Only a certain contamination was detected in the underlying surface sediments of polygons from the inner (Cu, Pb) and middle (Pb) zones of Vigo Ria; however, the increase in metal concentrations in sediments below rafts depends more on landbased anthropogenic sources than on the presence of mussel rafts or biomagnification processes.
format	info:eu-repo/semantics/article
author	Prego, R Otxotorena, U Cobelo-García, A
author_facet	Prego, R Otxotorena, U Cobelo-García, A
author_sort	Prego, R
title	Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
title_short	Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
title_full	Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
title_fullStr	Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
title_full_unstemmed	Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?
title_sort	presence of cr, cu, fe and pb in sediments underlying mussel-culture rafts (arosa and vigo rias, nw spain). are they metal-contaminated areas?
publisher	Iniversidad Autónoma de Baja California
publishDate	2006
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1100
_version_	1792610213789958144

Presence of Cr, Cu, Fe and Pb in sediments underlying mussel-culture rafts (Arosa and Vigo rias, NW Spain). Are they metal-contaminated areas?

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