Use of whole mussels and mussel gills in metal pollution biomonitoring

Use of whole mussels and mussel gills in metal pollution biomonitoring

The use of marine bivalves in metal pollution monitoring is undoubtedly one of the best tools to evaluate metal pollution in coastal areas worldwide. However, since bivalves integrate metal pollution from both the dissolved and the particulate phases, it cannot be assured that metal bioaccumulation...

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Autores principales: Sánchez-Marín, Paula, Besada, Victoria, Beiras, Ricardo
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2018
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2861
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language eng
description The use of marine bivalves in metal pollution monitoring is undoubtedly one of the best tools to evaluate metal pollution in coastal areas worldwide. However, since bivalves integrate metal pollution from both the dissolved and the particulate phases, it cannot be assured that metal bioaccumulation in their tissues will predict the risk posed by metals to sensitive organisms such as invertebrate larvae or microalgae, which are known to be mainly affected by the free metal ion fraction. This study aims to test the usefulness of mussel gills–the primary exchange surfaces with dissolved metals–in reflecting dissolved metal bioavailability in the field. For that, we analyzed metal concentrations in environmental samples (whole soft tissues of mussels, mussel gills, sediment, and particulate and dissolved fractions in the water column) collected from 7 sampling sites during a multi-year investigative monitoring survey in the Ría de Vigo. The results showed a different pattern of Cu and Zn accumulation in gills compared to whole soft tissues, and these differences are attributable to the faster response of gills to changes in dissolved metal concentrations and to the regulation of essential metals at the whole body level. In the case of Pb, by contrast, concentrations in gills were very similar to those in the whole body. The use of mussel gills in metal pollution biomonitoring is a promising tool for the detection of changes in bioavailable metals in the environment, especially for essential metals such as Cu and Zn.
format info:eu-repo/semantics/article
author Sánchez-Marín, Paula
Besada, Victoria
Beiras, Ricardo
spellingShingle Sánchez-Marín, Paula
Besada, Victoria
Beiras, Ricardo
Use of whole mussels and mussel gills in metal pollution biomonitoring
author_facet Sánchez-Marín, Paula
Besada, Victoria
Beiras, Ricardo
author_sort Sánchez-Marín, Paula
title Use of whole mussels and mussel gills in metal pollution biomonitoring
title_short Use of whole mussels and mussel gills in metal pollution biomonitoring
title_full Use of whole mussels and mussel gills in metal pollution biomonitoring
title_fullStr Use of whole mussels and mussel gills in metal pollution biomonitoring
title_full_unstemmed Use of whole mussels and mussel gills in metal pollution biomonitoring
title_sort use of whole mussels and mussel gills in metal pollution biomonitoring
publisher Iniversidad Autónoma de Baja California
publishDate 2018
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2861
_version_ 1792610098036604928
spelling repositorioinstitucional-20.500.12930-75472023-05-09T14:30:51Z Use of whole mussels and mussel gills in metal pollution biomonitoring Uso del mejillón entero y de sus branquias en el biomonitoreo de la contaminación por metales Sánchez-Marín, Paula Besada, Victoria Beiras, Ricardo The use of marine bivalves in metal pollution monitoring is undoubtedly one of the best tools to evaluate metal pollution in coastal areas worldwide. However, since bivalves integrate metal pollution from both the dissolved and the particulate phases, it cannot be assured that metal bioaccumulation in their tissues will predict the risk posed by metals to sensitive organisms such as invertebrate larvae or microalgae, which are known to be mainly affected by the free metal ion fraction. This study aims to test the usefulness of mussel gills–the primary exchange surfaces with dissolved metals–in reflecting dissolved metal bioavailability in the field. For that, we analyzed metal concentrations in environmental samples (whole soft tissues of mussels, mussel gills, sediment, and particulate and dissolved fractions in the water column) collected from 7 sampling sites during a multi-year investigative monitoring survey in the Ría de Vigo. The results showed a different pattern of Cu and Zn accumulation in gills compared to whole soft tissues, and these differences are attributable to the faster response of gills to changes in dissolved metal concentrations and to the regulation of essential metals at the whole body level. In the case of Pb, by contrast, concentrations in gills were very similar to those in the whole body. The use of mussel gills in metal pollution biomonitoring is a promising tool for the detection of changes in bioavailable metals in the environment, especially for essential metals such as Cu and Zn. El uso de bivalvos marinos en el biomonitoreo de la contaminación por metales es sin duda una de las mejores herramientas disponibles para evaluar la contaminación por metales en áreas costeras de todo el mundo. Sin embargo, debido a que los bivalvos integran la contaminación por metales presentes en las fases disuelta y particulada, no está claro que la bioacumulación de metales en sus tejidos sirva para predecir el riesgo causado por los metales sobre los organismos más sensibles, como lo son las larvas de invertebrados o las microalgas, que se ven afectados principalmente por la fracción libre del metal en forma iónica. El presente estudio pretende evaluar la utilidad de las branquias de mejillón–la principal superficie de intercambio con el metal disuelto–para reflejar la biodisponibilidad del metal disuelto en el campo. Para ello, hemos analizado las concentraciones de metales en muestras ambientales (tejidos blandos enteros y branquias de mejillón, sedimento, fracción disuelta y particulada en la columna de agua) recogidas en 7 puntos de muestreo durante una campaña investigativa de seguimiento de la contaminación en la ría de Vigo. Los resultados mostraron un patrón diferente en la acumulación de Cu y Zn en branquias en comparación con los tejidos blandos enteros, siendo estas diferencias atribuibles a la más rápida respuesta de las branquias a cambios en las concentraciones de metales disueltos, así como a la regulación de metales esenciales a nivel de organismo entero. En el caso del Pb, por el contrario, las concentraciones en branquias fueron muy similares a las observadas en el cuerpo entero. El uso de branquias de mejillón en el biomonitoreo de la contaminación por metales es una herramienta prometedora para la detección de cambios en la cantidad de metales biodisponibles en el medio ambiente, en especial para metales esenciales como el Cu y el Zn. 2018-12-20 2021-06-03T03:55:38Z 2021-06-03T03:55:38Z 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/2861 10.7773/cm.v44i4.2861 https://hdl.handle.net/20.500.12930/7547 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2861/420420463 Copyright (c) 2018 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 44 No. 4 (2018); 279–294 Ciencias Marinas; Vol. 44 Núm. 4 (2018); 279–294 2395-9053 0185-3880

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