Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure

Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure

The Mar Menor coastal lagoon is one of the largest of the Mediterranean Sea. Ancient mining activities in the mountains near its southern basin have resulted in metal contamination in the sediment. The metal bioavailability of these sediments was determined through laboratory toxicity bioassays usin...

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Autori principali: Marín-Guirao, L, Cesar, A, Marín, A, Vita, R
Natura: Online
Lingua:eng
Pubblicazione: Iniversidad Autónoma de Baja California 2005
Accesso online:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/53
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spelling oai:cienciasmarinas.com.mx:article-532019-04-24T23:05:37Z Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure Valoración de la contaminación por metales en los sedimentos de la laguna costera del Mar Menor (SE de España): Distribución de metales, toxicidad, bioacumulación y estructura de las comunidades bentónicas Marín-Guirao, L Cesar, A Marín, A Vita, R metals toxicity bioaccumulation amphipods sea urchins seagrass coastal lagoon Mediterranean Sea metales toxicidad bioacumulación anfípodos erizos marinos fanerógama marina laguna costera The Mar Menor coastal lagoon is one of the largest of the Mediterranean Sea. Ancient mining activities in the mountains near its southern basin have resulted in metal contamination in the sediment. The metal bioavailability of these sediments was determined through laboratory toxicity bioassays using three Mediterranean sea urchin species and two amphipod species, and by means of field bioaccumulation measurements involving the seagrass Cymodocea nodosa. The effect of sediment metal contamination on benthic communities was assessed through benthic infaunal analyses, applying classical descriptive parameters and multivariate techniques. The sediments affected by the mining activities presented high levels of toxicity and metals were also accumulated in the seagrass tissues, pointing to metal bioavailability. Although the classical benthic indices were not clear indicators of disturbance, the multivariate techniques applied provided more consistent conclusions. El Mar Menor es una de las mayores lagunas costeras en el Mediterráneo. Actividades mineras desarrolladas históricamente en las montañas situadas en su orilla sur han causado la contaminación por metales de sus sedimentos. La biodisponibilidad de los metales en estos sedimentos fue determinada por medio de bioensayos de toxicidad, empleando tres especies de erizos marinos y dos especies de anfípodos, y por medio de medidas de bioacumulación en la fanerógama marina Cymodocea nodosa. El efecto de la contaminación de los sedimentos por metales en las comunidades bentónicas fue valorado a través de análisis de la infauna bentónica, aplicando parámetros descriptivos clásicos y técnicas multivariantes. Los sedimentos afectados por las actividades mineras presentaron altos niveles de toxicidad y estos metales fueron incluso acumulados en los tejidos de la fanerógama marina, indicando la biodisponibilidad de los mismos. Aunque los índices bentónicos clásicos no resultaron ser claros indicadores de la perturbación, las técnicas multivariantes aplicadas ofrecieron conclusiones más consistentes. 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/53 10.7773/cm.v31i2.53 Ciencias Marinas; Vol. 31 No. 2 (2005); 413-428 Ciencias Marinas; Vol. 31 Núm. 2 (2005); 413-428 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/53/35
institution Ciencias Marinas
collection OJS
language eng
format Online
author Marín-Guirao, L
Cesar, A
Marín, A
Vita, R
spellingShingle Marín-Guirao, L
Cesar, A
Marín, A
Vita, R
Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
author_facet Marín-Guirao, L
Cesar, A
Marín, A
Vita, R
author_sort Marín-Guirao, L
title Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
title_short Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
title_full Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
title_fullStr Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
title_full_unstemmed Assessment of sediment metal contamination in the Mar Menor coastal lagoon (SE Spain): Metal distribution, toxicity, bioaccumulation and benthic community structure
title_sort assessment of sediment metal contamination in the mar menor coastal lagoon (se spain): metal distribution, toxicity, bioaccumulation and benthic community structure
description The Mar Menor coastal lagoon is one of the largest of the Mediterranean Sea. Ancient mining activities in the mountains near its southern basin have resulted in metal contamination in the sediment. The metal bioavailability of these sediments was determined through laboratory toxicity bioassays using three Mediterranean sea urchin species and two amphipod species, and by means of field bioaccumulation measurements involving the seagrass Cymodocea nodosa. The effect of sediment metal contamination on benthic communities was assessed through benthic infaunal analyses, applying classical descriptive parameters and multivariate techniques. The sediments affected by the mining activities presented high levels of toxicity and metals were also accumulated in the seagrass tissues, pointing to metal bioavailability. Although the classical benthic indices were not clear indicators of disturbance, the multivariate techniques applied provided more consistent conclusions.
publisher Iniversidad Autónoma de Baja California
publishDate 2005
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/53
_version_ 1715723928740036608

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