Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean

Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean

Red mullet (Mullus barbatus, Linnaeus, 1758) is one of the fish species used as bioindicator in the Mediterranean Pollution Monitoring Programme (MEDPOL). This paper presents the results of a field study on the induction of hepatic metallothioneins (MT) in red mullet as specific biomarker of metal c...

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Glavni autori: Benedicto, J, Martínez-Gómez, C, Campillo, J
Format: Online
Jezik:eng
Izdano: Iniversidad Autónoma de Baja California 2005
Online pristup:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/89
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spelling oai:cienciasmarinas.com.mx:article-892019-04-27T00:07:32Z Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean Inducción de metalotioneínas en Mullus barbatus como biomarcador especí fico de contaminación metálica: Estudio de campo en el Mediterráneo occidental Benedicto, J Martínez-Gómez, C Campillo, J biomarker heavy metals metallothioneins Mediterranean Sea Mullus barbatus biomarcador Mediterráneo metales pesados metalotioneínas Mullus barbatus Red mullet (Mullus barbatus, Linnaeus, 1758) is one of the fish species used as bioindicator in the Mediterranean Pollution Monitoring Programme (MEDPOL). This paper presents the results of a field study on the induction of hepatic metallothioneins (MT) in red mullet as specific biomarker of metal contamination. Specimens of M. barbatus were collected in six areas with different degrees of anthropogenic activities along the Iberian Mediterranean coast. The environmental exposure to heavy metals of the populations was determined through the analyses of surface sediments collected in each study area. The MT levels obtained showed statistically significant differences between areas, but not between specimens of different sex. Furthermore, the highest MT levels were found in the most polluted areas. Hepatic MT levels in red mullet reflect the metal contamination present in surface sediments, especially for Cu, for which a significant linear regression was found. The MT levels are better correlated with Cu and Cd concentrations than with Zn and Hg concentrations. The MT values obtained in this study are the first to be reported for this species in the Iberian Mediterranean and they should help in the interpretation of MT levels and to establish MT background levels for M. barbatus in the western Mediterranean. El salmonete de fango (Mullus barbatus, Linnaeus, 1758) es una de las especies utilizadas como bioindicador en el Programa de Seguimiento de la Contaminación del Mar Mediterráneo (MEDPOL). Este trabajo presenta los resultados de un estudio de campo sobre la inducción hepática de metalotioneínas (MT) en salmonete de fango como biomarcador específico de contaminación metálica. Los especímenes de M. barbatus fueron capturados en seis áreas de la costa Mediterránea Ibérica con diferentes grados de actividad antropogénica. La exposición de las poblaciones a la contaminación metálica se determinó analizando los sedimentos superficiales de cada una de las áreas de estudio. Los niveles de MT obtenidos mostraron diferencias significativas entre áreas pero no entre especímenes de diferente sexo. Además, los mayores niveles de MT registrados correspondieron a las áreas más contaminadas. Los niveles de MT reflejan la contaminación metálica existente en los sedimentos superficiales, especialmente por cobre, para el que se demostró la existencia de una regresión lineal significativa. Los niveles de MT están mejor correlacionados con cobre y cadmio, que con zinc y mercurio. Los niveles de MT obtenidos en este estudio son los primeros medidos en esta especie en el Mediterráneo Ibérico y podrán ayudar a interpretar los niveles hepáticos de MT así como a establecer los niveles basales para M. barbatus en el Mediterráneo occidental. Iniversidad Autónoma de Baja California 2005-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/89 10.7773/cm.v31i12.89 Ciencias Marinas; Vol. 31 No. 1B (2005); 265-274 Ciencias Marinas; Vol. 31 Núm. 1B (2005); 265-274 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/89/69
institution Ciencias Marinas
collection OJS
language eng
format Online
author Benedicto, J
Martínez-Gómez, C
Campillo, J
spellingShingle Benedicto, J
Martínez-Gómez, C
Campillo, J
Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
author_facet Benedicto, J
Martínez-Gómez, C
Campillo, J
author_sort Benedicto, J
title Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
title_short Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
title_full Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
title_fullStr Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
title_full_unstemmed Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean
title_sort induction of metallothioneins in mullus barbatus as specific biomarker of metal contamination: a field study in the western mediterranean
description Red mullet (Mullus barbatus, Linnaeus, 1758) is one of the fish species used as bioindicator in the Mediterranean Pollution Monitoring Programme (MEDPOL). This paper presents the results of a field study on the induction of hepatic metallothioneins (MT) in red mullet as specific biomarker of metal contamination. Specimens of M. barbatus were collected in six areas with different degrees of anthropogenic activities along the Iberian Mediterranean coast. The environmental exposure to heavy metals of the populations was determined through the analyses of surface sediments collected in each study area. The MT levels obtained showed statistically significant differences between areas, but not between specimens of different sex. Furthermore, the highest MT levels were found in the most polluted areas. Hepatic MT levels in red mullet reflect the metal contamination present in surface sediments, especially for Cu, for which a significant linear regression was found. The MT levels are better correlated with Cu and Cd concentrations than with Zn and Hg concentrations. The MT values obtained in this study are the first to be reported for this species in the Iberian Mediterranean and they should help in the interpretation of MT levels and to establish MT background levels for M. barbatus in the western Mediterranean.
publisher Iniversidad Autónoma de Baja California
publishDate 2005
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/89
_version_ 1715723933122035712

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