registration of fish sanguinicolosis in the republic of armenia

Background: the republic of armenia is poor in water resources; therefore, fish farming is based on growing freshwater fish in artificial reservoirs. a special feature of the republic’s aquaculture is its focus on the breeding and cultivation of carp, as well as some species of predatory fish. since sanguinicolosis especially affects cyprinid fish, the study of this disease is of great importance in the aquaculture of armenia. objectives: the objective of our study was to assist fish farmers in implementing effective measures for the prevention and treatment of sanguinicolosis, thereby preventing its further spread within the country.methods: to identify the causative agent, parasitological and histological examinations were conducted on 200 fish specimens.results: the results indicated that 42.5% of the examined fish were infected with sanguinicolosis. the cercariae exhibited a clear localization within the fish tissues, with lengths ranging from 0.16 to 1.6 mm. morphological changes of a destructive nature were observed in the gills of the studied silver crucian carp specimens. disruptions in the histological structure of the intestinal wall were also documented. similar changes in the swim bladder were attributed to the direct negative impact of the parasite.conclusion: the decline in fish populations in the pond farm specializing in the cultivation of crucian carp in the armavir region of the republic of armenia is caused by infection with sanguinicola sp. to determine the prevalence of the disease within the republic and identify the specific type of causative agent, it is deemed necessary to expand the scope and nature of the research.