Biomarkers of Oxidative Stress and Persistent Organic Pollutants in Plasma and Eggs of Chelonia mydas Nesting in the Southern Gulf of Mexico

Abstract The major nesting sites for the endangered green turtle ( Chelonia mydas ) are in Campeche, Mexico: Carmen, Isla Aguada, and Sabancuy. Although they a natural reserve, these threatened by agricultural activities oil extraction. This study aimed to determine presence concentration of organochlorine pesticides (OCPs) polycyclic aromatic hydrocarbons (PAHs) plasma eggs assess antioxidant response C . from southern Gulf Mexico. Using censored statistics allowed us do realistic calculation incorporating non-detects analysis. A few contaminants (α+β+γ-HCH, trans -chlordane, 4,4′-DDE, 4,4′-DDT, methoxychlor, naphthalene, acenaphthylene, 2-Bromo acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, dibenz[a,h]anthracene) were detected their corresponding eggs, but correlations not-significant. Spatial differences concentrations persistent organic pollutants (POPs) among may reflect foraging areas. Approximately 30% POPs 60% correlated with biomarkers oxidative stress. Detection indicated that suitable matrices concentrations.