Caryophihsis of fish - a dangerous invasion of the Cyprinid family in the river area of the republic of Dagestan

Abstract

The article provides information that the indicators of the extent of the invasion of caryophilesis of Terek trout, Ciscaucasia pinch, North Caucasian bleak, and eastern bumpkin were directly dependent on the pollution index of the Terek, Sulak, Samur, Kizlyar, and Aksai rivers. As can be seen, with a pollution index of 0.92 %, the Terek trout( near the mouth of the river) had EI of caryophilesis of 39.00%, the Sulak River, respectively, 0.84 and 31.50%, the Samur River - 0.78.and 28.00%, the River Kizlyar - 0.71 and 20.50%, the Aksai River - 0.80 and 25.00% (EI on average, 36.00%). In the Terek, Sulak, Samur, Kizlyar and Aksai rivers, the rates of caryophilesis invasion in the Pre-Caucasian shipovka were 32 % respectively 24.50%; 21.00%; 20.00%; 22.50%, North Caucasian bleak - 23.50; 21.00; 18.00; 14.00; 16.50%, oriental sculpin - 33.00; 30.50; 24.00; 20.50; 23.00%, which indicates the insemination of these natural reservoirs in relation to dangerous Cestodose invasion.