Geochemestry and heavy metals concentrations in a comer-cial importance organism (Corbula caribaea. D’orbigny, 1842) in shallow subtidal zone at the Mallorquín-Atlántico Coastal lagoon

Authors

  • Alejandro J. Franco Universidad del Atlántico
  • Iván M. León-Luna Universidad del Atlántico

DOI:

https://doi.org/10.26640/22159045.216

Keywords:

Lagoon coastal, Ciénaga de Mallorquín, sediments, heavy metals, Corbula caribaea, bioaccumulation

Abstract

Geochemestry and concentrations of heavy metals (Cu, Cd, Pb, Zn) were measured in shallow subtidal sediments and in a comercial importance organism at the Mallorquín coastal lagoon, very important for the enviroment in departamento del Atlántico. Sediments and bivalves Corbula caribaea known as chipichipi was collected during the rainy and dry season. The sediments consist mainly of mud and show a strong concentration of organic matter (13%). The total heavy metal concentrations in sediments and tissues were analyzed by atomic absorption spectrophotometry. The sediments was collected only once time and the essential metals showed higher concentrations in the sediment that non-essential metals (Zn> Cu> Pb> Cd), however the contamination factor indicated absence or low degree of metal contamination. Zn as in sediment showed the highest concentrations in soft tissues for the two periods, Cu presented the highest value during the first sampling and was associated with the reproductive physiology of this specie. Cd had higher concentrations during the second sampling but Pb remained the lowest concentrations in all samples. The bioaccumulation factor showed that the species bioconcentrates significant traces of bioavailable Cd and Zn in the environment. This bioavailability was associated with salinity levels varied during the two periods sampled.

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Author Biographies

  • Alejandro J. Franco, Universidad del Atlántico

    Grupo de Investigaciones Zona Costera, Universidad del Atlántico, Colombia

  • Iván M. León-Luna, Universidad del Atlántico

    Grupo de Investigaciones Zona Costera, Universidad del Atlántico, Colombia

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Published

2010-12-05

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Section

RESEARCH ARTICLE

How to Cite

Geochemestry and heavy metals concentrations in a comer-cial importance organism (Corbula caribaea. D’orbigny, 1842) in shallow subtidal zone at the Mallorquín-Atlántico Coastal lagoon. (2010). CIOH Scientific Bulletin, 28, 69-83. https://doi.org/10.26640/22159045.216

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