Biochemical and Morphofunctional Effects of Polycyclic Aromatic Hydrocarbons on River Snail Viviparus viviparus of the Central Part of Russia

A toxicological experiment was conducted to evaluate the effects of elevated concentrations of PAHs (with benzo[a]pyrene and naphthalene as examples) on the morphofunctional state and activity of hepatopancreatic and muscle acid phosphatases of the Viviparus viviparus L. mollusk. The observed changes in the specific activity of the mollusk’s muscle and hepatopancreatic acid phosphatases indicated a metabolic disorder, which was further confirmed by assessing the morphofunctional state of the tissues. The activity of limnetic mollusks’ acid phosphatase may be a marker of freshwater pollution with toxic compounds in ecological and biochemical monitoring.