Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns
Guanabara Bay, since its discovery, has largely changed with the human occupation causing large amounts of deposited sediment and waste, as well as domestic and industry sewage. Surface sediment was analysed for foraminifera and ostracoda distribution, diversity and dominance studies. These resul...
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| Format: | Article |
| Language: | English |
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Universidade Federal do Rio de Janeiro
2003-01-01
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| Series: | Anuário do Instituto de Geociências |
| Subjects: | |
| Online Access: | http://www.anuario.igeo.ufrj.br/anuario_2003/anuario_igeo_2003_claudia.pdf |
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| author | Claudia G. Vilela Antonio E. S. Sanjinés Renato O. Ghiselli Jr. João Graciano Mendonça Filho José A. Baptista Neto Catia F. Barbosa |
| author_facet | Claudia G. Vilela Antonio E. S. Sanjinés Renato O. Ghiselli Jr. João Graciano Mendonça Filho José A. Baptista Neto Catia F. Barbosa |
| author_sort | Claudia G. Vilela |
| collection | DOAJ |
| description | Guanabara Bay, since its discovery, has largely changed with the human occupation causing large amounts of deposited sediment and waste, as well as domestic and industry sewage. Surface sediment was analysed for foraminifera and ostracoda distribution, diversity and dominance studies. These results were compared with TOC analyses aiming the determination of pollution bioindicators. In general, foraminifera dominant species were Ammonia tepida, Buliminella elegantissima and Quinqueloculina seminulum. The foraminifera assemblages presented distinct abundance and diversity values in different regions of the bay. The diversity was higher in the entrance (south) and in the central region than in the north region of the bay. The dominant species, that are characteristic of stressed environments, presented higher values of abundance in the north region. The TOC values increased from south to north regions, and were inversely proportional to foraminifera diversity. The very high TOC values in very polluted areas suggest sediment deposition in anoxic-dysoxic environment. The ostracoda Gen. Cyprideis was dominant and its occurrence increased from south to north region. Occurrence of Callistocythere sigmocostata, Xestoleberis sp., Aurila sp., and Paracypris sp. were restricted to the entrance and central area, indicating a preference for less restricted conditions, like marine conditions. Foraminifera and ostracoda characteristic responses to the environment conditions related high TOC values showed their importance as bioindicators of stressed environments caused by anthropogenic pollution, in the Guanabara Bay. |
| first_indexed | 2024-04-11T03:15:01Z |
| format | Article |
| id | doaj.art-897e365bb129481c84f3ec513ac3ce0e |
| institution | Directory Open Access Journal |
| issn | 0101-9759 |
| language | English |
| last_indexed | 2024-04-11T03:15:01Z |
| publishDate | 2003-01-01 |
| publisher | Universidade Federal do Rio de Janeiro |
| record_format | Article |
| series | Anuário do Instituto de Geociências |
| spelling | doaj.art-897e365bb129481c84f3ec513ac3ce0e2023-01-02T10:44:26ZengUniversidade Federal do Rio de JaneiroAnuário do Instituto de Geociências0101-97592003-01-01262535Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic PatternsClaudia G. VilelaAntonio E. S. SanjinésRenato O. Ghiselli Jr.João Graciano Mendonça FilhoJosé A. Baptista NetoCatia F. BarbosaGuanabara Bay, since its discovery, has largely changed with the human occupation causing large amounts of deposited sediment and waste, as well as domestic and industry sewage. Surface sediment was analysed for foraminifera and ostracoda distribution, diversity and dominance studies. These results were compared with TOC analyses aiming the determination of pollution bioindicators. In general, foraminifera dominant species were Ammonia tepida, Buliminella elegantissima and Quinqueloculina seminulum. The foraminifera assemblages presented distinct abundance and diversity values in different regions of the bay. The diversity was higher in the entrance (south) and in the central region than in the north region of the bay. The dominant species, that are characteristic of stressed environments, presented higher values of abundance in the north region. The TOC values increased from south to north regions, and were inversely proportional to foraminifera diversity. The very high TOC values in very polluted areas suggest sediment deposition in anoxic-dysoxic environment. The ostracoda Gen. Cyprideis was dominant and its occurrence increased from south to north region. Occurrence of Callistocythere sigmocostata, Xestoleberis sp., Aurila sp., and Paracypris sp. were restricted to the entrance and central area, indicating a preference for less restricted conditions, like marine conditions. Foraminifera and ostracoda characteristic responses to the environment conditions related high TOC values showed their importance as bioindicators of stressed environments caused by anthropogenic pollution, in the Guanabara Bay.http://www.anuario.igeo.ufrj.br/anuario_2003/anuario_igeo_2003_claudia.pdfpollutionbioindicatorsgeochemistryGuanabara Bay |
| spellingShingle | Claudia G. Vilela Antonio E. S. Sanjinés Renato O. Ghiselli Jr. João Graciano Mendonça Filho José A. Baptista Neto Catia F. Barbosa Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns Anuário do Instituto de Geociências pollution bioindicators geochemistry Guanabara Bay |
| title | Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns |
| title_full | Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns |
| title_fullStr | Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns |
| title_full_unstemmed | Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns |
| title_short | Search for Bioindicators of Pollution in the Guanabara Bay: Integrations of Ecologic Patterns |
| title_sort | search for bioindicators of pollution in the guanabara bay integrations of ecologic patterns |
| topic | pollution bioindicators geochemistry Guanabara Bay |
| url | http://www.anuario.igeo.ufrj.br/anuario_2003/anuario_igeo_2003_claudia.pdf |
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