Oxidative stress as an indicator of niche-width preference of mangrove Rhizophora stylosa

•Salinity and inundation are considered dominant abiotic drivers in mangrove.•These drivers cause the induction of reactive oxygen species (ROS).•Inundation imposed a higher-order oxidative stress than the effect of salinity.•The species of Rhizophora stylosa showed lower tolerance to inundation.•Frequently inundated areas (i.e. seafront zones) may suffer from oxidative stress.