Metal mobility and bioaccumulation differences at lower trophic levels in marine ecosystems dominated by Sargassum species
Por:
Hernández-Almaraz P., Méndez-Rodríguez L., Zenteno-Savín T., García-Domínguez F., Vázquez-Botello A., Serviere-Zaragoza E.
Publicada:
1 may 2014
Categoría:
Aquatic Science
Resumen:
Concentrations of cadmium (Cd), lead (Pb), copper (Cu), zinc (Zn) and iron (Fe) were measured in three macroalgal species, Codium simulans, Sargassum sinicola and Gracilaria pachydermatica, and in the sea slug Elysia diomedea, living in marine ecosystems dominated by Sargassum species and located near exploited phosphorite deposits. Metal concentrations in macroalgae and sea slugs were significantly different among sites. The highest concentrations of Cd recorded in C. simulans and S. sinicola, as well as in E. diomedea were recorded at the site closest to the phosphorite deposit. In general, Cd and Zn concentrations in E. diomedea were higher than those recorded in specimens of C. simulans, S. sinicola and G. pachydermatica. In contrast, Pb, Cu, and Fe concentrations in E. diomedea were lower than or similar to those in macroalgae from all sampled sites. The information generated contributes to the knowledge about potential mobility and metal bioaccumulation at lower trophic levels in marine eco systems. © Marine Biological Association of the United Kingdom 2014.
Filiaciones:
Hernández-Almaraz P.:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S. 23096, Mexico
Méndez-Rodríguez L.:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S. 23096, Mexico
Zenteno-Savín T.:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S. 23096, Mexico
García-Domínguez F.:
Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n, La Paz, B.C.S. 23096, Mexico
Vázquez-Botello A.:
ICMyL UNAM, Mexico City 04510, DF, Mexico
Serviere-Zaragoza E.:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S. 23096, Mexico
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