The application of biochemical responses to assess environmental quality of tropical estuaries: field surveys

The application of biochemical responses to assess environmental quality of tropical estuaries: field surveys

Author Alves Maranho, Luciane Google Scholar
Pereira, Camilo Dias Seabra Autor UNIFESP Google Scholar
Choueri, Rodrigo Brasil Autor UNIFESP Google Scholar
Cesar, Augusto Autor UNIFESP Google Scholar
Gusso-Choueri, Paloma Kachel Autor UNIFESP Google Scholar
Torres, Ronaldo José Google Scholar
Souza Abessa, Denis Moledo de Google Scholar
Morais, Rodofley Davino Google Scholar
Mozeto, Antonio Aparecido Google Scholar
Angel DelValls, Tomas Google Scholar
Laura Martin-Diaz, Maria Google Scholar
Institution Univ Cadiz UCA CSIC
Univ Cadiz
Univ Santa Cecilia
Universidade Federal de São Paulo (UNIFESP)
Univ Estadual Paulista Julio de Mesquita Filho UN
Univ Fed Parana
Universidade Federal de São Carlos (UFSCar)
Abstract A battery of biomarkers of exposure (EROD, DBF, GST and GPx) and effect (lipid peroxidation and DNA damage - strand breaks) were analyzed in gill tissues from caged and native oysters Crassostrea rhizophorae exposed to two tropical estuarine systems in SW Brazil: Santos (S1, S2, S3, S4) and Paranagua (P1 - control, P2, P3, P4). the exposure lasted 28 days. Native oysters were sampled in the same areas where caged systems were exposed. Significant induction of biomarkers of exposure to organic compounds and oxidative stress (p < 0.05) were observed in all transplanted individuals from Santos resulting in DNA damage and lipid peroxidation. Biological adverse effects were more evident in oysters transplanted in the Santos Estuarine System, a recognized contaminated area, than in the Paranagua Estuarine System, surrounded by urban areas and Environmental Protected Areas. Native specimens from both estuaries showed adaption to the impacts of several contamination sources affecting the ecosystem. the use of transplanted C. rhizophorae proved to be a suitable tool for assessing and monitoring the environmental quality in mangrove ecosystems. This integrated approach employing multi-biomarker responses under field conditions could be incorporated as a descriptor of health status in tropical estuarine systems.
Language English
Sponsor Spanish Ministry of Science and Education (MECD-DGU)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Erasmus Mundus scholarship
Grant number CAPES: BEX2492/08-03
CAPES: BEX2300/08-7
CAPES: 099/06
Date 2012-10-01
Published in Journal of Environmental Monitoring. Cambridge: Royal Soc Chemistry, v. 14, n. 10, p. 2608-2615, 2012.
ISSN 1464-0325 (Sherpa/Romeo, impact factor)
Publisher Royal Soc Chemistry
Extent 2608-2615
Access rights Closed access
Type Article
Web of Science ID WOS:000309189200007

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