Benthic foraminifera distribution in high polluted sediments from Niterói Harbor (Guanabara Bay), Rio de Janeiro, Brazil

Anais da Academia Brasileira de Ciências

Claudia G. Vilela²  Daniele S. Batista²  José A. Batista-neto¹  Mirian Crapez¹  John J. Mcallister¹ 

[1] ,Universidade Federal do Rio de Janeiro Centro de Ciências Matemáticas e da Natureza Departamento de GeologiaRio de Janeiro,Brasil

关键词: benthic foraminifera;    Guanabara Bay;    pollution;    heavy-metals;    foraminíferos bentônicos;    Baía de Guanabara;    poluição;    metais pesados;   

DOI  :  10.1590/S0001-37652004000100014

来源: SciELO

【 摘 要 】

Dockyards and harbors are recognized as being important locations where sediment-associated pollutants can accumulate, which constitutes an environmental risk to aquatic life due to potential uptake and accumulation of heavy metals in the biota. The aim of this paper is to assess the concentrations and the effects of some heavy metals in the benthic foraminifera assemblage in Niterói Harbor. Low concentrations in the benthic foraminifera as well as the dominance of indicative species such as Ammonia tepida, Buliminella elegantissima and Bolivina lowmani can be associated with an environment under stress. In addition, the occurrence of test abnormalities among foraminifera may represent a useful biomarker for evaluating long-term environmental impacts in a coastal region.

【 授权许可】

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