PARASITIC DISEASEOF FISH

Abstract

The Kaban Kara su and Baigeldy lakes, Zhalpaksu and Sergeevskoe reservoir play a very important role in growing fish. Especially one – year – old carps suffer from chemodonellosis during wintering. This disease affects trout and small salmon chebaks at an artificial dam, and all fish that feed on these plants are resistant to these diseases. If the ecological condition is weakened in water bodies, the fish's body also deteriorates, the number of pathogens increases, etc., the cause of the disease spreads widely.
On the lake Zhalpak su, located near the Ishim River, in the summer time the fishermen catch fish in small nets, where the water depth is shallow towards the shore, the fish with hylodonellosis are very worried and even swim to the surface. In connection with the irritation of the parasites, the skin and gills secrete a thin layer of mucus.