Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ.
This work presents a study of benthic foraminifera recovered from three cores collected near the Paquetá island, in the Guanabara bay, Rio de Janeiro, southeastern Brazil. The cores have different sizes and were subsampled in centimetric intervals. The recovered benthic foraminiferal assemblages wer...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal do Rio de Janeiro
2007-07-01
|
| Series: | Anuário do Instituto de Geociências |
| Subjects: | |
| Online Access: | http://www.anuario.igeo.ufrj.br/anuario_2007_1/2007_1_145_157.pdf |
| _version_ | 1797966322328403968 |
|---|---|
| author | Brígida Orioli Figueira Claudia Gutterres Vilela José Antônio Baptista Neto |
| author_facet | Brígida Orioli Figueira Claudia Gutterres Vilela José Antônio Baptista Neto |
| author_sort | Brígida Orioli Figueira |
| collection | DOAJ |
| description | This work presents a study of benthic foraminifera recovered from three cores collected near the Paquetá island, in the Guanabara bay, Rio de Janeiro, southeastern Brazil. The cores have different sizes and were subsampled in centimetric intervals. The recovered benthic foraminiferal assemblages were thoroughly identified, in order to carry out an ecological study towards reconstructing the environmental evolution of the studied area during the recent historical period and assessing the response of the foraminiferal assemblages to the locally occurring natural and/or anthropogenic impacts. The microfaunal distribution results were correlated with the sedimentological and TOC (Total Organic Carbon) data to understand the environmental trends and evaluate the varying patterns of human-related pollution in the area. 14C isotopic date was taken at the bottom of one core, to help for the local sediment accumulation rates. Species diversity values were low in all samples, whereas the TOC values were commonly high, increasing dramatically upwards across the cores.The dominant species in that area of the Guanabara bay were Ammonia tepida, Elphidium spp. and Buliminella elegantissima. Patterns of the distributions of these species confirm the influence of the anthropogenic pollutiontoward the top of the cores. |
| first_indexed | 2024-04-11T02:13:43Z |
| format | Article |
| id | doaj.art-286bb39197a842868cc85e494c9f0638 |
| institution | Directory Open Access Journal |
| issn | 0101-9759 |
| language | English |
| last_indexed | 2024-04-11T02:13:43Z |
| publishDate | 2007-07-01 |
| publisher | Universidade Federal do Rio de Janeiro |
| record_format | Article |
| series | Anuário do Instituto de Geociências |
| spelling | doaj.art-286bb39197a842868cc85e494c9f06382023-01-03T01:34:26ZengUniversidade Federal do Rio de JaneiroAnuário do Instituto de Geociências0101-97592007-07-01301145157Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ.Brígida Orioli FigueiraClaudia Gutterres VilelaJosé Antônio Baptista NetoThis work presents a study of benthic foraminifera recovered from three cores collected near the Paquetá island, in the Guanabara bay, Rio de Janeiro, southeastern Brazil. The cores have different sizes and were subsampled in centimetric intervals. The recovered benthic foraminiferal assemblages were thoroughly identified, in order to carry out an ecological study towards reconstructing the environmental evolution of the studied area during the recent historical period and assessing the response of the foraminiferal assemblages to the locally occurring natural and/or anthropogenic impacts. The microfaunal distribution results were correlated with the sedimentological and TOC (Total Organic Carbon) data to understand the environmental trends and evaluate the varying patterns of human-related pollution in the area. 14C isotopic date was taken at the bottom of one core, to help for the local sediment accumulation rates. Species diversity values were low in all samples, whereas the TOC values were commonly high, increasing dramatically upwards across the cores.The dominant species in that area of the Guanabara bay were Ammonia tepida, Elphidium spp. and Buliminella elegantissima. Patterns of the distributions of these species confirm the influence of the anthropogenic pollutiontoward the top of the cores.http://www.anuario.igeo.ufrj.br/anuario_2007_1/2007_1_145_157.pdfForaminiferidsGuanabara BaypollutioncoresPaquetá Island |
| spellingShingle | Brígida Orioli Figueira Claudia Gutterres Vilela José Antônio Baptista Neto Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. Anuário do Instituto de Geociências Foraminiferids Guanabara Bay pollution cores Paquetá Island |
| title | Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. |
| title_full | Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. |
| title_fullStr | Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. |
| title_full_unstemmed | Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. |
| title_short | Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. |
| title_sort | avaliacao da poluicao antropica usando padrao de distribuicao deespecies de foraminiferos provenientes de testemunhos da baia de guanabara rj |
| topic | Foraminiferids Guanabara Bay pollution cores Paquetá Island |
| url | http://www.anuario.igeo.ufrj.br/anuario_2007_1/2007_1_145_157.pdf |
| work_keys_str_mv | AT brigidaoriolifigueira avaliacaodapoluicaoantropicausandopadraodedistribuicaodeespeciesdeforaminiferosprovenientesdetestemunhosdabaiadeguanabararj AT claudiagutterresvilela avaliacaodapoluicaoantropicausandopadraodedistribuicaodeespeciesdeforaminiferosprovenientesdetestemunhosdabaiadeguanabararj AT joseantoniobaptistaneto avaliacaodapoluicaoantropicausandopadraodedistribuicaodeespeciesdeforaminiferosprovenientesdetestemunhosdabaiadeguanabararj |