Fig. 2From: Integrated assessment of biomarker responses and comparative toxicity pathway in snails Bellamya aeruginosa exposed to tributyltin and triphenyltin in sedimentsRelative enzymatic activity (REA) of superoxide dismutase (SOD) in the hepatopancreas of Bellamya aeruginosa exposed to sediment-associated tributyltin (a) and triphenyltin (b) of 100, 500, 1000 and 2000 ng/g. Relative enzymatic activity (REA) of catalase (CAT) in the hepatopancreas of Bellamya aeruginosa exposed to sediment-associated tributyltin (c) and triphenyltin (d) of 100, 500, 1000 and 2000 ng/g. Results are mean ± SD. Asterisks indicate significant difference from the control (p < 0.05); double asterisks indicate significant difference from the control (p < 0.01)Back to article page