Symptomy zatrucia Planorbarius corneus (Mollusca, Gastropoda, Pulmonata) chrom (III)-sulfatem rodowiska wodnego Abstract

Abstract

The article focuses on the influence of various concentrations (0,001, 0,01, 0,1, 1, 10, 100, 1000, 10000 mg/dm3) of chrom sulfate of the water environment on the etology and physiology reactions of Planorbarius corneus (Linnaeus, 1758). The research shows that all these solutions depending on the level of their concentrations put, in this or that way, poisons pressure on the mollusk organism. The consequence of poisoning of these mollusks are five phases of the pathological process indifference, stimulation, depression, sublethal and lethal. The ordinary of the protective reactions of P. corneus are the avoidance of poisonous environment, the presence of moderate mucus on the skin and on the weak dropsy of their tissues. The complex of important pathological reactions represent are the destruction of the skin and respiratory epithelium and powerful dropsy of tissues at the poisoning of these mollusks with chrom sulfate. The target function is the skin and pulmonary respiration. As a rule these animals perish on account of asphyxiation. The burder of pathological process depend on the concentration of the toxic agent and the duration of action.