Fig. 5From: Bioaccumulation, alterations of metallothionein, and antioxidant enzymes in the mullet Mugil cephalus exposed to hexavalent chromiumMean superoxide dismutase (SOD) units per milligram protein in liver (a) and gill (b) tissues of mullet, M. cephalus, exposed to various Cr6+ concentrations for a 4-week time periodBack to article page