Histological Study of the Gills and Gastrointestinal Organs of the Fishes, Inhabiting the Lake Bilikol

There was done a histological study of gills and organs of the gastrointestinal tract of the fishes inhabiting the lake Bilikol in Zhambyl oblast. On the basis of the revealed extensive morphological changes of a destructive nature in the gills, the stomach and intestines of the fishes there was drawn the conclusion about contamination of the water pool with toxicants.