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

Autor: Evelyn da Rocha Mendes Pereira, Felipe M. Pimenta, Marcos Eduardo Cordeiro Bernardes, Luiz Bruner de Miranda, Beatriz Beck Eichler, Alessandro Luvizon Bérgamo, Patrícia B. P Kfouri, Patrícia Pinheiro Beck Eichler
Rok vydání: 2001
Předmět:
Zdroj: Pesquisas em Geociências. 28:251
ISSN: 1807-9806
1518-2398
DOI: 10.22456/1807-9806.20300
Popis: 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.
Databáze: OpenAIRE