Concentrations of metals in liver of Guiana dolphins (Sotalia guianensis) from an estuary in Southeast of Brazil

Autores

  • Lilian Dalago Salgado Laboratório de Toxicologia Ambiental, Departamento de Farmacologia, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil ; Instituto de Pesquisas Cananéia, Cananéia, SP, Brazil https://orcid.org/0000-0002-9963-3793
  • Suzana Mas-Rosa Departamento de Medicina Veterinária, Faculdade de Ensino Superior e Formação Integral, Garça, SP, Brazil
  • Júlio César Rodrigues de Azevedo Laboratório de Estudos Avançados em Química Ambiental, Departamento de Química, Universidade Tecnológica Federal do Paraná (UTFPR), Curitiba, PR, Brazil

DOI:

https://doi.org/10.5132/eec.2018.01.06

Palavras-chave:

Bioaccumulation, Cetaceans, Pb, Sentinel, Sotalia guianensis, Trace elements

Resumo

Concentrations of Fe, Zn, Cu, Mn, Pb, Cr, Co and Ni were measured in the liver of 21 Guiana dolphins from the Estuarine-Lagoon Complex of Iguape-Cananéia, in order to indicate the impact of their habitat and to verify if these concentrations differ between the sexes and age classes. The concentrations followed the order: Fe>Zn>Cu>Mn>Pb>Cr>Co>Ni, and with the exception of lead, all concentrations were in the same order of magnitude observed for the species. The accumulations between the sexes were similar, while copper were higher in infants, suggesting that the organ can act as a reservoir for Co in a period of rapidly postnatal growth. Lead mean concentration (3.17 μg g-1) were the highest described for the species, which from a toxicological point of view may be a matter of concern. This accumulation suggests a trophic transfer, indicating the contamination of the food chain, which possibly reflects the local environmental contamination caused by ancient lead mining.

Biografia do Autor

Lilian Dalago Salgado, Laboratório de Toxicologia Ambiental, Departamento de Farmacologia, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil ; Instituto de Pesquisas Cananéia, Cananéia, SP, Brazil

Mestranda em Ciência e Tecnologia Ambiental pela Universidade Tecnológica Federal do Paraná - UTFPR e Pesquisadora do Projeto Boto-cinza do Instituto de Pesquisas Cananéia - IPeC.

Suzana Mas-Rosa, Departamento de Medicina Veterinária, Faculdade de Ensino Superior e Formação Integral, Garça, SP, Brazil

Departamento de Medicina Veterinária

Júlio César Rodrigues de Azevedo, Laboratório de Estudos Avançados em Química Ambiental, Departamento de Química, Universidade Tecnológica Federal do Paraná (UTFPR), Curitiba, PR, Brazil

Laboratório de Estudos Avançados em Química Ambiental, Departamento de Química

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Publicado

2018-08-20

Como Citar

Salgado, L. D., Mas-Rosa, S., & Azevedo, J. C. R. de. (2018). Concentrations of metals in liver of Guiana dolphins (Sotalia guianensis) from an estuary in Southeast of Brazil. Ecotoxicology and Environmental Contamination, 13(1), 51–61. https://doi.org/10.5132/eec.2018.01.06

Edição

v. 13 n. 1 (2018)

Seção

Artigos

Licença

Copyright (c) 2018 Ecotoxicology and Environmental Contamination

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