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Field study of metal concentrations and biomarker responses in resident oysters of an estuarine system in southern Brazil.
Vilke, Juliano M; Moser, Juliana R; Ferreira, Clarissa P; Bebianno, Maria J; Zacchi, Flávia L; Bastolla, Camila L V; Rosa, Carlos A V L; Corrêa, Jacyara N; Jorge, Marianna B; Bainy, Afonso C D; Lüchmann, Karim H.
Afiliação
  • Vilke JM; Multicenter Program in Postgraduate in Biochemistry and Molecular Biology - PMBqBM, Santa Catarina State University, Lages, 88520-000, Brazil; Centre for Marine and Environmental Research - CIMA, University of Algarve, Campus de Gambelas, Faro, 8000-139, Portugal.
  • Moser JR; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis, 88034-257, Brazil.
  • Ferreira CP; Multicenter Program in Postgraduate in Biochemistry and Molecular Biology - PMBqBM, Santa Catarina State University, Lages, 88520-000, Brazil.
  • Bebianno MJ; Centre for Marine and Environmental Research - CIMA, University of Algarve, Campus de Gambelas, Faro, 8000-139, Portugal.
  • Zacchi FL; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis, 88034-257, Brazil.
  • Bastolla CLV; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis, 88034-257, Brazil.
  • Rosa CAVL; Fishery Engineering and Biological Sciences Department, Santa Catarina State University, Laguna, 88790-000, Brazil.
  • Corrêa JN; Laboratory of Ecotoxicology - LABECOTOX, Federal University of Maranhão, São Luís, 65080-805, Brazil.
  • Jorge MB; Laboratory of Ecotoxicology - LABECOTOX, Federal University of Maranhão, São Luís, 65080-805, Brazil.
  • Bainy ACD; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis, 88034-257, Brazil.
  • Lüchmann KH; Department of Scientific and Technological Education, Santa Catarina State University, Florianópolis, 88035-001, Brazil. Electronic address: karim.luchmann@udesc.br.
Chemosphere ; 337: 139288, 2023 Oct.
Article em En | MEDLINE | ID: mdl-37348614
Pollutant exposure is considered an important factor responsible for the decline in marine biodiversity of Latin American coastal ecosystems. This threat has been detected in an estuarine system in southern Brazil, which prompted an investigation into the long-term biological effects of a chronic metal contamination on resident oysters from the Laguna Estuarine System (LES). Here, we present the species- and size-specific variations of biomarker responses (catalase, glucose-6-phosphate dehydrogenase, glutathione S-transferase, and protein carbonylation) in the gills and digestive gland of Crassostrea gigas and Crassostrea gasar. In parallel, concentrations of eight metals (Al, Cd, Cr, Cu, Fe, Mn, Pb, Zn) in soft tissues were measured. Our analyses revealed that the metal levels exhibited decreasing order in both species: Zn > Fe > Al > Cu > Mn > Cd. Except for Cu and Al, metal concentrations did not differ between oyster species. Biomarker results highlighted that C. gasar presented higher antioxidant responses, whereas C. gigas showed increased biotransformation upon exposure to LES pollutants, which varied according to the tissue. However, C. gasar showed a significant higher content of protein carbonylation but was not related to metals. In our research approach, the observation of metals presence and biomarkers-related responses are considered biologically relevant from an ecotoxicological perspective and serve as a baseline for future pollution studies in estuaries of Latin America. Finally, we recommend adopting a suite of biomarkers in both C. gasar and C. gigas, regardless their size and weight, as sentinel organisms in future regional biomonitoring studies in southern Brazil.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Poluentes Ambientais / Crassostrea Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Chemosphere Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Portugal País de publicação: Reino Unido
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Poluentes Ambientais / Crassostrea Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Chemosphere Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Portugal País de publicação: Reino Unido