[The effect of water temperature and salinity on the longevity of cercaria of marine littoral trematodes Podocotyle atomon (Opecoelidae) and Renicola thaidus (renicolidae)]].

The influence of temperature and salinity on the survival of free-living cercariae of the marine trematodes Podocotyle atomon and Renicola thaidus has been examined. It was found out, that the survival of free-living cercariae depend upon the temperature and salinity of the water.