Document of bibliographic reference 367180
BibliographicReference record
- Type
- Bibliographic resource
- Type of document
- Journal article
- BibLvlCode
- AS
- Title
- Benthic foraminifera as proxies for assessing the effects of a pier marina construction: a case study in the naturally stressed environment of the Saco da Ribeira (Flamengo Bay, SE Brazil)
- Abstract
- Brazilian coastal areas have been exposed to various anthropic influences including physical alteration such as marina construction. To assess the impact of the pier marina construction in the Saco da Ribeira cove (Flamengo Bay, SE Brazil), sedimentological (grain size), geochemical (organic and trace elements) parameters and benthic foraminifera were analyzed on a 50-cm-long dated sediment core covering the last century. The multiproxy approach applied to a numerical hydrodynamic model shows that the circulation in the study area underwent an overall reduction (ca. 30 %) after the pier marina construction in the 1970s, promoting an increase of mud accumulation and higher concentrations of total organic carbon and trace elements (i.e., Enrichment Factor Cu from 0.80 to 1.4) as well as a shift in the benthic foraminiferal assemblages (i.e., foraminiferal density from 63 to 23.20 specimens per 10 cm3 and dominance from 0.13 to 0.73). On the basis of these integrated data, better environmental conditions occurred before the 1970s, then an overall increase in environmental stress took place after the pier's marina construction. Our results provide a baseline for future biomonitoring projects in a stressed region and exemplify the strong capability and reliability of benthic foraminifera as bioindicators of paleoenvironmental changes in coastal environments and for understanding how human pressure might induce such changes.
- WebOfScience code
- https://www.webofscience.com/wos/woscc/full-record/WOS:001050876900001
- Bibliographic citation
- Sousa, S.H.M.; de Jesus, M.S.S.; Yamashita, C.; Mendes, R.N.M.; Frontalini, F.; Siegle, E.; Kim, B.; Ferreira, P.A.L.; Renó, R.; Alves Martins, M.V.; Nascimento, J.L.P.M.; Figueira, R.C.L.; de Mahiques, M.M. (2023). Benthic foraminifera as proxies for assessing the effects of a pier marina construction: a case study in the naturally stressed environment of the Saco da Ribeira (Flamengo Bay, SE Brazil). Mar. Pollut. Bull. 194(Part A): 115225. https://dx.doi.org/10.1016/j.marpolbul.2023.115225
- Topic
- Marine
- Is peer reviewed
- true
Authors
- author
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- Name
- Silvia Sousa
- author
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- Name
- Márcio Santana dos Santos de Jesus
- author
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- Name
- Cintia Yamashita
- author
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- Name
- Rafaela Mendes
- author
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- Name
- Fabrizio Frontalini
- author
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- Name
- Eduardo Siegle
- author
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- Name
- Bianca Kim
- author
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- Name
- Paulo Ferreira
- author
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- Name
- Raquel Renó
- author
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- Name
- Maria Virginia Alves Martins
- author
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- Name
- Jorge Nascimento
- author
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- author
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- Name
- Michel de Mahiques