Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California

Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California

This study analyzes the concentrations and variations of Cu, Mn, Zn, Al, Cd, Ag, As and Se among different size classes of Modiolus capax, from Punta Estrella, Bahía de los Ángeles and Santa Rosalía in the Gulf of California, and of Modiolus modiolus and Mytilus californianus, from Bahía Tortugas in...

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Autores principales: Gutiérrez-Galindo, EA, Villaescusa-Celaya, JA, Arreola-Chimal, A
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 1999
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/726
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record_format ojs
institution Ciencias Marinas
collection OJS
language eng
format Online
author Gutiérrez-Galindo, EA
Villaescusa-Celaya, JA
Arreola-Chimal, A
spellingShingle Gutiérrez-Galindo, EA
Villaescusa-Celaya, JA
Arreola-Chimal, A
Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
author_facet Gutiérrez-Galindo, EA
Villaescusa-Celaya, JA
Arreola-Chimal, A
author_sort Gutiérrez-Galindo, EA
title Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
title_short Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
title_full Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
title_fullStr Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
title_full_unstemmed Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California
title_sort bioaccumulation of metals in mussels from four sites of the coastal region of baja california
description This study analyzes the concentrations and variations of Cu, Mn, Zn, Al, Cd, Ag, As and Se among different size classes of Modiolus capax, from Punta Estrella, Bahía de los Ángeles and Santa Rosalía in the Gulf of California, and of Modiolus modiolus and Mytilus californianus, from Bahía Tortugas in the Pacific. During November 1988, mussels of these species were collected and 45 organisms were selected (three replicates of 15 organisms each). Their biometric variables were measured: large size (88–98 mm), medium size (70–87 mm) and small size (56–66 mm). The reference standards and procedural blanks were analyzed for each group of 15 samples. The results indicate that the geographic distribution and accumulation of metals in the different sizes are mainly influenced by the sources of input, bioavailability in each place and the biological condition of the organisms. The mussels presented Cu levels independent of size in the region, except at Santa Rosalía. Zn, Cd and Se showed strong regional variability, but no clear trend with respect to the size of the organisms. Al showed high regional variability and a tendency to accumulate in small organisms. As and Se presented higher concentrations in the large to medium mussels, regardless of the sampling site. Mn tended to accumulate in large and medium mussels and was dependent on the sampling site. In Bahía Tortugas, M. californianus accumulates Cu, Mn and Cd at a rate three times lower than M. modiolus at the same level of exposure. Within the Gulf of California, the geographic distribution of Mn, Al and Zn was similar, with higher concentrations in the northern part. This is probably because the mussels are exposed to these metals through the sedimentary material resuspended in the Colorado River Delta. Cd presented levels of 70 and 27 µg g–1 at Bahía Tortugas and Bahía de los Angeles, respectively; both sites are exposed to coastal upwelling. Cu presented relatively low levels (<35 µg g–1), except at Santa Rosalía (89 µg g–1), where Cu is mined. As, Se and Ag presented low variability in the study area, with low levels that reflect natural levels at the sites studied.
publisher Iniversidad Autónoma de Baja California
publishDate 1999
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/726
_version_ 1715724003376627712
spelling oai:cienciasmarinas.com.mx:article-7262019-05-16T18:04:27Z Bioaccumulation of metals in mussels from four sites of the coastal region of Baja California Bioacumulación de metales en mejillones de cuatro sitios selectos de la región costera de Baja California Gutiérrez-Galindo, EA Villaescusa-Celaya, JA Arreola-Chimal, A heavy metals mussels size Gulf of California metales pesados mejillones talla Golfo de California This study analyzes the concentrations and variations of Cu, Mn, Zn, Al, Cd, Ag, As and Se among different size classes of Modiolus capax, from Punta Estrella, Bahía de los Ángeles and Santa Rosalía in the Gulf of California, and of Modiolus modiolus and Mytilus californianus, from Bahía Tortugas in the Pacific. During November 1988, mussels of these species were collected and 45 organisms were selected (three replicates of 15 organisms each). Their biometric variables were measured: large size (88–98 mm), medium size (70–87 mm) and small size (56–66 mm). The reference standards and procedural blanks were analyzed for each group of 15 samples. The results indicate that the geographic distribution and accumulation of metals in the different sizes are mainly influenced by the sources of input, bioavailability in each place and the biological condition of the organisms. The mussels presented Cu levels independent of size in the region, except at Santa Rosalía. Zn, Cd and Se showed strong regional variability, but no clear trend with respect to the size of the organisms. Al showed high regional variability and a tendency to accumulate in small organisms. As and Se presented higher concentrations in the large to medium mussels, regardless of the sampling site. Mn tended to accumulate in large and medium mussels and was dependent on the sampling site. In Bahía Tortugas, M. californianus accumulates Cu, Mn and Cd at a rate three times lower than M. modiolus at the same level of exposure. Within the Gulf of California, the geographic distribution of Mn, Al and Zn was similar, with higher concentrations in the northern part. This is probably because the mussels are exposed to these metals through the sedimentary material resuspended in the Colorado River Delta. Cd presented levels of 70 and 27 µg g–1 at Bahía Tortugas and Bahía de los Angeles, respectively; both sites are exposed to coastal upwelling. Cu presented relatively low levels (<35 µg g–1), except at Santa Rosalía (89 µg g–1), where Cu is mined. As, Se and Ag presented low variability in the study area, with low levels that reflect natural levels at the sites studied. En este estudio se evalúan las concentraciones y variaciones de Cu, Mn, Zn, Al, Cd, Ag, As y Se entre diferentes clases de talla de Modiolus capax, residente en Punta Estrella, Bahía de los Ángeles y Santa Rosalía en el Golfo de California, y de Modiolus modiolus y Mytilus californianus, en la localidad de Bahía Tortugas en el Pacífico. Para este propósito, durante noviembre de 1988 se recolectaron mejillones de estas especies y se realizó una selección de 45 organismos (tres réplicas integradas de 15 individuos cada una), midiendo variables biométricas en talla grande (88–98 mm), talla mediana (70–87 mm) y talla chica (56–66 mm). Por cada grupo de 15 muestras se analizaron estándares de referencia y blancos de procedimiento. Los resultados indican que la distribución geográfica y la acumulación de metales en las diferentes tallas se encuentran influenciadas principalmente por las fuentes de aporte, la biodisponibilidad en cada lugar y la condición biológica de los organismos. Los mejillones presentaron niveles de Cu independientes de la talla en la región, excepto en Santa Rosalía. El Zn, Cd y Se indican una fuerte variabilidad regional y no mostraron una tendencia clara con respecto a la talla de los organismos. El Al mostró una alta variabilidad regional, con una tendencia a acumularse en organismos de talla chica. El As y Se presentaron concentraciones mayores en mejillones de talla grande a mediana, independientemente de la localidad de recolección. El Mn tiende a acumularse en tallas grandes y medianas y mostró una dependencia de la localidad de recolección. Comparativamente, en Bahía Tortugas, M. californianus acumula el Cu, Mn y Cd en una proporción tres veces menor que M. modiolus al mismo nivel de exposición. En cuanto a la distribución geográfica en el Golfo de California, ésta fue similar para el Mn, Al y Zn, con mayores concentraciones en la parte norte, probablemente debido a que los mejillones se encuentran expuestos a estos metales asociados con el material sedimentario resuspendido en el delta del Río Colorado. El Cd presentó niveles de 70 y 27 µg g–1 en Bahía Tortugas y Bahía de los ÿngeles, respectivamente, localidades expuestas a fenómenos de surgencia costera. El Cu presentó niveles relativamente bajos (<35 µg g–1), con excepción de Santa Rosalía (89 µg g–1), conocida por la explotación minera de Cu realizada en esta zona. El As, Se y Ag presentaron poca variabilidad en el área estudiada, con niveles bajos que reflejan niveles naturales en las localidades estudiadas. Iniversidad Autónoma de Baja California 1999-03-06 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/726 10.7773/cm.v25i4.726 Ciencias Marinas; Vol. 25 No. 4 (1999); 557-578 Ciencias Marinas; Vol. 25 Núm. 4 (1999); 557-578 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/726/653

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