The use of biomarkers (catalase and malondialdehyde) in marine pollution monitoring: Spatial variability

In this study,two different oxidative biomarkers; catalase (cat) and malondialdehyde (mda) were evaluated for their influence on site-pollution status in the brown mussel perna perna collected from four stations along the moroccan atlantic coast. the oxidative stress biomarkers showed statistically significant differences inthe polluted sites when compared to the control ones. our data indicated that cat activity and mda concentration in the mussels collected at polluted sites were higher than that of the controls (p < 0.05). the oxidative stress biomarkers response obtained for january 2010 and december 2011,clearly demonstrate the potential presence of contaminants in site 4 and site 3 reflecting the intensity of pollution in these areas compared to the two other sites.