Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California

Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California

The spatial distribution of the Hg, Fe, Co, and Ni pollution was determined in the Northwest coast of Baja California using the mussel Mytilus californianus as biomonitor. Samplings of mussels were done during February and July 1994 at eight sites located along 300 km of coast, from Punta Bandera (1...

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Autores principales: Gutiérrez-Galindo, EA, Muñoz-Barbosa, A
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2003
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/136
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id oai:cienciasmarinas.com.mx:article-136
record_format ojs
institution Ciencias Marinas
collection OJS
language eng
format Online
author Gutiérrez-Galindo, EA
Muñoz-Barbosa, A
spellingShingle Gutiérrez-Galindo, EA
Muñoz-Barbosa, A
Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
author_facet Gutiérrez-Galindo, EA
Muñoz-Barbosa, A
author_sort Gutiérrez-Galindo, EA
title Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
title_short Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
title_full Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
title_fullStr Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
title_full_unstemmed Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California
title_sort geographic variability of the concentration of hg, co, fe and ni in mussels mytilus californianus (conrad, 1837) from the coast of baja california
description The spatial distribution of the Hg, Fe, Co, and Ni pollution was determined in the Northwest coast of Baja California using the mussel Mytilus californianus as biomonitor. Samplings of mussels were done during February and July 1994 at eight sites located along 300 km of coast, from Punta Bandera (10 km south of the Mexico-USA border) to San Quintin (300 km south of the border). The spatial distribution of Hg showed a North-South gradient from Punta Bandera (0.331 µg g–1) to San Quintin (0.094 µg g–1). This gradient suggests that the Hg distribution is affected by anthropogenic activities nearby the Mexico-USA border. Cobalt showed a spatial distribution with significantly higher concentrations (P < 0.01) in Piedra Blanca (2.98 µg g–1) and San Quintin (2.26 µg g–1). Nickel showed an irregular spatial distribution with higher concentrations in Punta Bandera (2.07 µg g–1) and San Quintin (1.83 µg g–1). In general, Fe showed higher concentrations from Punta Bandera to Bajamar in February (515–504 µg g–1); except for Punta China (1142 µg g–1) that is characterized by the extraction of petrous material for the cement industry, the sampling sites in the central part of the study area showed lower concentrations. No significant correlations were observed among metals and the biological variables of the analyzed mussels. The cluster analysis among metals, grouped Hg with elements (Ag and Pb) associated with anthropogenic activities in a previous study. Cluster analysis showed three geographical zones that could be defined as polluted, transition and clean zone, respectively.
publisher Iniversidad Autónoma de Baja California
publishDate 2003
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/136
_version_ 1715723934651908096
spelling oai:cienciasmarinas.com.mx:article-1362019-04-27T00:05:06Z Geographic variability of the concentration of Hg, Co, Fe and Ni in mussels Mytilus californianus (Conrad, 1837) from the coast of Baja California Variabilidad geográfica de la concentración de Hg, Co, Fe y Ni en mejillones Mytilus californianus (Conrad, 1837) de la costa de Baja California Gutiérrez-Galindo, EA Muñoz-Barbosa, A Metals mussels northwest coast of Baja California Metales mejillones costa noroccidental de Baja California The spatial distribution of the Hg, Fe, Co, and Ni pollution was determined in the Northwest coast of Baja California using the mussel Mytilus californianus as biomonitor. Samplings of mussels were done during February and July 1994 at eight sites located along 300 km of coast, from Punta Bandera (10 km south of the Mexico-USA border) to San Quintin (300 km south of the border). The spatial distribution of Hg showed a North-South gradient from Punta Bandera (0.331 µg g–1) to San Quintin (0.094 µg g–1). This gradient suggests that the Hg distribution is affected by anthropogenic activities nearby the Mexico-USA border. Cobalt showed a spatial distribution with significantly higher concentrations (P < 0.01) in Piedra Blanca (2.98 µg g–1) and San Quintin (2.26 µg g–1). Nickel showed an irregular spatial distribution with higher concentrations in Punta Bandera (2.07 µg g–1) and San Quintin (1.83 µg g–1). In general, Fe showed higher concentrations from Punta Bandera to Bajamar in February (515–504 µg g–1); except for Punta China (1142 µg g–1) that is characterized by the extraction of petrous material for the cement industry, the sampling sites in the central part of the study area showed lower concentrations. No significant correlations were observed among metals and the biological variables of the analyzed mussels. The cluster analysis among metals, grouped Hg with elements (Ag and Pb) associated with anthropogenic activities in a previous study. Cluster analysis showed three geographical zones that could be defined as polluted, transition and clean zone, respectively. En este estudio se determinó la distribución espacial de la contaminación por Hg, Fe, Co y Ni en la costa noroccidental de Baja California mediante el uso del mejillón Mytilus californianus como biomonitor. Durante febrero y julio de 1994 se realizaron muestreos de mejillones en ocho localidades situadas a lo largo de 300 km de costa, desde Punta Bandera (10 km al sur de la frontera México-EUA) hasta San Quintín (300 km al sur de la frontera). La distribución espacial de Hg presentó un gradiente norte-sur desde Punta Bandera (0.331 µg g–1) hasta San Quintín (0.094 µg g–1). Este gradiente sugiere que la distribución de Hg es afectada por las actividades antropogénicas cercanas a la frontera México-EUA. El Co presentó una distribución espacial con concentraciones significativamente mayores (P < 0.01) en Piedra Blanca (2.98 µg g–1) y San Quintín (2.26 µg g–1). El Ni mostró una distribución espacial irregular, con concentraciones mayores en Punta Bandera (2.07 µg g–1) y San Quintín (1.83 µg g–1). El Fe presentó mayores concentraciones de Punta Banda a Bajamar en febrero (504–515 µg g–1); a excepción de Punta China (1142 µg g–1), localidad caracterizada por la extracción de material pétreo para el uso de la industria cementera, las estaciones del centro del área de estudio presentan menores concentraciones de este metal. No se observaron correlaciones significativas entre los metales y las variables biológicas de los mejillones analizados. En el análisis de agrupamiento (clusters) entre metales, el Hg se asoció a elementos descritos en otro estudio (Ag y Pb) los cuales mostraron estar influenciados antropogénicamente. El análisis de agrupamiento entre localidades de muestreo resultó en la integración de tres zonas geográfica, las cuales pueden ser definidas como zona contaminada, zona de transición y zona limpia. Iniversidad Autónoma de Baja California 2003-03-06 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/136 10.7773/cm.v29i1.136 Ciencias Marinas; Vol. 29 No. 1 (2003); 21-34 Ciencias Marinas; Vol. 29 Núm. 1 (2003); 21-34 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/136/113

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