Multimarker approach analysis in the brown mussel to evaluate the anthropogenic stress: A preliminary study

In this study,a suite of biochemical biomarkers,possible signs of stress,were applied to the mussel perna perna collected from various areas of the big casablanca,to verify the pollution status in the referred areas. a battery of biochemical biomarkers,extensively used worldwide,was assessed in the whole body. as biochemical indices; catalase (cat),glutathione s-transferase (gst),acetylcholinesterase (ache),as well as malondialdehyde (mda) and metallothioneine (mt). all biomarkers showed statistically significant differences at the polluted sites when compared to the control ones. in fact,our data indicated that cat and gst activity,mda and mt concentration in whole mussel bodies,are more significant (p < 0.05) in the mussels collected at polluted sites than specimen samples from control ones. in contrary,the response of ache activity was significantly (p<0.05) inhibited in mussels from polluted sites when compared to control values. the multiple biomarker responses obtained for january 2010 and december 2011,clearly demonstrate the potential presence of different contaminants in site 1 and site 2 reflecting the intensity of pollution in these areas.