[Change in the content of inorganic ions in the hemolymph of freshwater mollusks infected with trematode parthenitae].

Changes in the concentration of ions of sodium, potassium, calcium and chlorine in the haemolymph of Lymnaea stagnalis and Planorbis corneus were studied during their infection with sporocysts and rediae of trematodes. Statistically reliable disturbances in the ion balance caused by the infection were established.