Artigo
Ecological relevance of sentinels' biomarker responses: A multi-level approach
Registro en:
Marine Environmental Research. Oxford: Elsevier Sci Ltd, v. 96, p. 118-126, 2014.
0141-1136
10.1016/j.marenvres.2013.11.002
WOS:000334981600014
Autor
Seabra Pereira, Camilo D.
Abessa, Denis M. S. [UNESP]
Choueri, Rodrigo B.
Almagro-Pastor, Victor
Cesar, Augusto
Maranho, Luciane A.
Laura Martin-Diaz, Maria
Torres, Ronaldo J.
Gusso-Choueri, Paloma K. [UNESP]
Almeida, Joao E.
Cortez, Fernando S.
Mozeto, Antonio A.
Silbiger, Helcy L. N.
Sousa, Eduinetty C. P. M.
Angel Del Valls, Tommas
Bainy, Afonso C. D.
Resumen
In response to the need for more sensitive and rapid indicators of environmental quality, sublethal effects on the lowest levels of biological organization have been investigated. The ecological relevance of these responses assumes a prevailing role to assure effectiveness as indicator of ecological status. This study aimed to investigate the linkages between biomarker responses of caged bivalves and descriptive parameters of macrobenthic community structure. For this purpose a multi-level environmental assessment of marine and estuarine zones was performed in Sao Paulo coast, Brazil. Multivariate analysis was applied to identify linkages between biological responses and ecological indices, as well as to characterizing the studied stations. Individuals of the marine mussel Perna perna caged along Santos Bay showed signs of oxidative stress, lysosomal membrane destabilization, histological alterations and reduced embryonic development. The estuarine oyster Crassostrea rhizophorae caged along Santos Port Channel showed alterations on biotransformation enzymes and antioxidant system, DNA damage and lysosomal membrane destabilization. The benthic community analysis showed reduced richness and diversity in the same areas of the Santos bay and estuary where biomarker responses were altered. Our results revealed that xenobiotics are inducing physiological stress, which may lead to changes of the benthic community structure and deterioration of the ecological status over time. Integrating biomarker responses and ecological indexes improved certainty that alterations found at community level could be related to xenobiotic as stressors, which was very useful to improve the discriminatory power of the environmental assessment. (C) 2013 Elsevier Ltd. All rights reserved. Spanish Ministry of Science and Education Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Erasmus Mundus scholarship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Univ Fed Sao Paulo, Dept Ciencias Mar, BR-11030400 Santos, SP, Brazil Univ Santa Cecilia, Dept Ecotoxicol, BR-11045907 Santos, SP, Brazil Univ Estadual Paulista, NEPEA, BR-11330900 Saao Vicente, SP, Brazil Univ Cadiz, Cadiz 11510, Spain Univ Fed Parana, Dept Biol Celular, Lab Toxicol Celular, BR-81531990 Curitiba, Parana, Brazil Univ Fed Sao Carlos, Dept Quim, Lab Biogeoquim Ambiental, BR-13565905 Sao Carlos, SP, Brazil Univ Sao Paulo, Inst Oceanog, BR-05508900 Sao Paulo, Brazil Univ Fed Santa Catarina, Dept Bioquim, CCB, BR-88040900 Florianopolis, SC, Brazil Univ Estadual Paulista, NEPEA, BR-11330900 Saao Vicente, SP, Brazil CAPES: 099/06 CAPES: BEX2492/08-03 CAPES: BEX2300/08-7 FAPESP: 98/00808-6 CNPq: 308649/2011-7