Genotoxicity assessment in two Amazonian estuaries using the Plagioscion squamosissimus as a biomonitor

• Published in: Environmental science and pollution research international Vol. 29; no. 27; pp. 41344 - 41356
• Main Authors: de Oliveira, Claudia Antonia Campos Rodrigues, dos Santos Souto, Paulo Sérgio, da Conceição Palheta, Dulcidéia, de Oliveira Bahia, Marcelo, da AraújoCunha, Lorena, de Lourdes Souza Santos, Maria, do Nascimento Medeiros Rodrigues, Tatiane, Bentes, Bianca
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2022; Springer Nature B.V
• Subjects: Animals; Aquatic organisms; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Bioassays; Coastal ecosystems; Comet Assay; Damage; DNA Damage; Earth and Environmental Science; Ecosystem; Ecotoxicology; Environment; Environmental assessment; Environmental Chemistry; Environmental Health; Environmental Monitoring; Environmental risk; Environmental science; Estuaries; Genotoxicity; Indicator organisms; Micronucleus Tests; Nucleoids; Perciformes; Plagioscion squamosissimus; Research Article; Risk assessment; Waste Water Technology; Water Management; Water Pollution Control; Environmental toxicology; Xenobiotic agents; Micronuclei; Comet assay; Brazilian Amazon estuaries; Genotoxicity
• ISSN: 0944-1344; 1614-7499; 1614-7499
• DOI: 10.1007/s11356-022-18767-1

Genotoxicity studies in coastal ecosystems have been a priority in Environmental Risk Assessment (ERA). This research aimed to study the genotoxicity by the micronucleus test and comet assay in two Brazilian Amazon estuaries (anthropized and control) using Plagioscion squamosissimus as a biomonitor. Blood samples were collected from 54 specimens. No significant genotoxic effects were detected in the cells analyzed, although the highest occurrence (MN and DNA damages) was observed in anthropized site. The percentage of genomic damage differed between the sites studied, being always higher in anthropizes site as well. Of the nucleoids analyzed in this site, on average, 28 ± 14.42% of the cells were classified in the highest damage class. The fish analyzed in the present study are direct influenced of xenobiont agents capable of producing damage to the genetic material of aquatic organisms in both sites and, consequently, may bring consequences still little reported in studies of morphophysiological alterations in humans.