Catalase Activity in Brown Mussels (Perna perna) under Acute Cadmium, Lead, and Copper Exposure and Depuration Tests

Figure 3

Mean (± SD) variation of catalase activity in Perna perna of control and Cd- (a), Pb- (b), Cu- (c), and mixture-exposed mussels (d) during 3 days of exposure and 10 days of depuration. Values followed by the same latter are not statistically different () but Values followed by the different latter are statistically significant ().

(a)

(b)

(c)

(d)