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

Table 1

Means of some physicochemical properties of the aqueous medium before and after the renewal. (+): augmentation, (−): diminishment.

Parameters	Control Cd	Test Cd	Control Pb	Test Pb	Control Pb	Test Cu
(^°C)	+0.810	−0.116	+1.350	−0.106	−0.260	−0.087
pH	+0.030	+0.056	+0.006	+0.150	+0.740	+0.217
Salinity (Psu)	−0.010	+0.033	−0.016	−0.110	+0.860	+0.242
Dissolved oxygen	nd	nd	+0.070	+0.226	nd	nd
NH3,4 (mg⋅L^−1)	+0.003	−0.006	−0.003	−0.014	+0.001	−0.017
N- (mg⋅L^−1)	−0.073	−0.169	+0.030	−0.009	+0.511	+0.563
N- (mg⋅L^−1)	+0.032	−0.068	+0.048	+0.009	+0.236	+0.193
P- (mg⋅L^−1)	−0.030	−0.110	+0.070	−0.423	−0.020	−0.957

nd: not determined.