Utilização de foraminíferos como indicadores da inluência marinha na Baía de Guanabara, RJ, Brasil

BEATRIZ BECK EICHLER, PATRÍCIA BECK EICHLER, LUIZ BRUNER DE MIRANDA, ALESSANDRO LUVIZON BÉRGAMO, MARCOS EDUARDO CORDEIRO BERNARDES, EVELYN DA ROCHA MENDES PEREIRA, PATRÍCIA KFOURI, FELIPE MENDONÇA PIMENTA

Resumo


This paper deals with the characterization of Guanabara Bay region using benthic foraminifera assemblages as an attempt to establish marine sensitive indicator species. Four fixed hydrographic stations were performed in winter during neap tide to obtain stratification-circulation water parameters besides the twenty six surface sediment samples used to evaluate absolute and relative frequency of foraminiferal species. It was possible to correlate the foraminiferal species to physical parameters as salinity, temperature, intensity and direction of currents from different water masses and defined Cassidulina subglobosa and Discorbis spp as marine indicator species in the bay region.


Palavras-chave


foraminifers; Guanabara Bay; physical paramenters; biological paramenters.

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DOI: https://doi.org/10.22456/1807-9806.20300

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