Common snook juveniles, Centropomus undecimalis, as biomonitor organisms to evaluate cytogenotoxicity effects of surface estuarine water from Southern Brazil

• Published in: Marine pollution bulletin 2019-12, Vol.149, p.110513, Article 110513
• Main Authors: Cardoso, Caroline Margonato, Maluf, Auro, Moreno, Beatriz Barbosa, Nobre, Caio Rodrigues, Maranho, Luciane Alves, Handan, Bianca Andrade, Abessa, Denis Moledo de Souza, Pereira, Camilo Dias Seabra, Ribeiro, Daniel Araki
• Format: Article
• Language: English
• Subjects: 8-Hydroxy-2'-Deoxyguanosine - metabolism; 8-Hydroxydeoxyguanosine; 8-OHdG immunoexpression; Animals; Aquaculture; Biological Monitoring - methods; Biomarkers; Biomonitoring; Body organs; Brackishwater environment; Brazil; Centropomus undecimalis; Contaminants; DNA; DNA Damage; Erythrocyte nuclear abnormality; Erythrocytes; Erythrocytes - pathology; Estuaries; Fish; Fish farms; Gills; Gills - drug effects; Indicator organisms; Juveniles; Lipid Peroxidation; Lipids; Malformations; Mutagenicity Tests - methods; Organs; Perciformes - genetics; Peroxidation; Reproducibility of Results; Santos-São Vicente Estuarine System; Sentinel Species; Steatosis; Surface water; Water Pollution - adverse effects; Water Pollution - analysis
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2019.110513

Centropomus undecimalis fish inhabit the highly contaminated Santos-São Vicente Estuarine System (SESS) and could be a good biomonitor of contaminants. This study aimed to investigate the cytogenotoxic potential of superficial water from SESS using C. undecimalis as a biomonitoring model and to validate the use of farmed fish as controls. Using biochemical (DNA damage and Lipid Peroxidation - LPO), cellular (erythrocyte nuclear abnormality – ENA) and tissue (8-OHdG immunoexpression) biomarkers, our results showed fish from SEES had higher LPO concentration in gills and higher frequency of reniform, lobed and total ENA in erythrocytes when compared with control farmed fish. Thus, SESS surface water are cytogenotoxic for blood and gills cells of fishes. C. undecimalis has shown to be a good biomonitor model and farmed fish can be used as control only if livers were not the target organs of study since the dietary food from farmed fish causes steatosis. •Centropomus undecimalis are shown to be a good biomonitor model.•Biochemical and cellular biomarkers have been more sensitive than tissue biomarker.•Surface water from SESS were cytogenotoxic for fish cells.•Farmed fish can be used as control only if livers were not the target organs.