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Trace Metals Analysis in Brown Booby (Sula leucogaster) Collected from Ilha Grande Bay, Rio de Janeiro, Brazil

DOI: http://dx.doi.org/10.18024/1519-5694/revuniandrade.v11n2p41-53

http://uniandrade.br/revistauniandrade/index.php/revistauniandrade/index 

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Aldo P. Ferreira1

  

Abstract: Concentrations of the trace metals: lead, zinc, chromium, cadmium, nickel, and copper were estimated in Brown Booby (Sula leucogaster), harvested from Ilha Grande Bay, Rio de Janeiro, Brazil. Mean concentration levels in liver and kidney (μg.g-1 dry weight), respectively were 6,32955 and 6,57136 (Cd); 78,17409 and 96,89409 (Zn); 44,01727 and 65,20864 (Cu); 41,15091 and 39,62318 (Pb); 2,80091 and 4,16455 (Cr); and 9,27182 and 9,91091 (Ni). The results indicate relatively high trace metal contamination in S. leucogaster and the data obtained are worrying by the extension that may cause to the trophic level of marine fauna at this studied region.

Key words: Trace metal; Contamination; Ilha Grande Bay; Sula leucogaster

 

Resumo: Concentrações de metais traço: chumbo, zinco, cromo, cádmio, níquel e cobre foram estimadas em Atobá-pardo (Sula leucogaster), colhidos na Baía da Ilha Grande, Rio de Janeiro, Brasil. Os níveis médios de concentração no fígado e no rim (μg.g-1 de peso seco), respectivamente foram 6,32955 e 6,57136 (Cd); 78,17409 e 96,89409 (Zn); 44,01727 e 65,20864 ( Cu); 41,15091 e 39,62318 (Pb); 2,80091 e 4,16455 (Cr) e 9,27182 e 9,91091 (Ni). Os resultados indicam níveis relativamente elevados de contaminação por metais traço em S. leucogaster e os dados obtidos são preocupantes pela extensão que pode causar para o nível trófico da fauna marinha na região estudada.

Palavras-chave: Metais-traço; Contaminação; Baía da Ilha Grande; Sula leucogaster

 

1 Escola Nacional de Saúde Pública Sérgio Arouca, Centro de Estudos da Saúde do Trabalhador e Ecologia Humana (Cesteh/Ensp/Fiocruz). Rua Leopoldo Bulhões, 1480, CEP 21041-210, Manguinhos. Rio de Janeiro, Brasil. E-mail: aldoferreira@ensp.fiocruz.br

 

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