Metales traza (Cu, Zn, Cd y Pb) en peces juveniles de las guarderías estuáricas a lo largo de la costa portuguesa

Autores/as

  • Rita P. Vasconcelos Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa
  • Patrick Reis-Santos Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa
  • Anabela Maia Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa - Department of Biological Sciences
  • Miguel Ruano Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa - University of Tokyo
  • Maria J. Costa Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa - Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa
  • Henrique N. Cabral Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa - Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa

DOI:

https://doi.org/10.3989/scimar.2011.75n1155

Palabras clave:

juveniles, guarderías, poblaciones, efectos antropogénicos, metales pesados

Resumen


La contaminación orgánica e inorgánica puede afectar a los organismos, a saber al estado fisiológico, crecimiento y supervivencia de los peces juveniles los cuales utilizan los estuarios como guarderías; afectando de forma cuantitativa y cualitativa a la poblaciones marinas adultas. La contaminación de elementos traza (Cu, Zn, Cd, Pb) en las formas juveniles de los peces comerciales Solea solea, Solea senegalensis, Platichthys flesus, Diplodus vulgaris y Dicentrarchus labrax recolectados en guarderías putativas de los principales estuarios portugueses (con diversos tipos e intensidades de presiones antropogénicas) fueron determinados por espectrometría de absorción atómica. La contaminación era significativamente diferente entre especies. Sobre todo se encontraron niveles similares de contaminación entre estuarios, excepto para D. vulgaris. Las concentraciones de Cu y Zn oscilaban desde 1.0 a 2.1 y desde 14 a 59 μg g-1 peso seco muscular, respectivamente, mientras que las concentraciones de Cd y Pb eran muy bajas. Los resultados indican que la migración de los juveniles a mar abierto está asociada a la baja exportación de la contaminación y que los estuarios no amplifican particularmente el potencial de contaminación de los adultos. En vista del valor ecológico y económico de estas especies y del uso de las zonas estuáricas como guarderías, este conocimiento es de vital importancia.

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Publicado

2011-03-30

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1.
Vasconcelos RP, Reis-Santos P, Maia A, Ruano M, Costa MJ, Cabral HN. Metales traza (Cu, Zn, Cd y Pb) en peces juveniles de las guarderías estuáricas a lo largo de la costa portuguesa. Sci. mar. [Internet]. 30 de marzo de 2011 [citado 23 de febrero de 2025];75(1):155-62. Disponible en: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1239

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