Fish caligosis - a dangerous invasion for aquaculture of pond water bodies of the Terek river basin within Dagestan

УДК 576:619:616.895.995.122
DOI 10.33861/2071-8020-2022-4-36-38

Alieva K.G., Daniyalova P.M., Kaloshkina I.M., Bittirov A.M., Lysenko A.A., Medvedeva A.M.

Summary. Indices of the occurrence index and abundance index of fish caligosis as an epizootically dangerous invasion for aquaculture of pond water bodies of the Terek river basin within the Republic of Dagestan, where the formation of large biotopes of caligosis invasion has been established, are presented in the article. Infection of the skin and gills of different fish species with parasitic crustaceans Caligus lacustris in pond water bodies of Dagestan ranges from 35 to 50%. The highest rates of the invasion occurrence index and the invasion abundance index are manifested in the summer and autumn periods of the year. Caligus invasion poses the greatest danger for fingerlings and 2-3-year-old pond fish of six species, in which the abundance indices of the pathogen Caligus lacustris vary within 3.84±0.18 - 5.17±0.39 ind./cm2 of skin and gills Indices of occurrence and abundance of invasion of the pathogen Caligus lacustris in different populations of silver carp are manifested in 39.0% and 4.43 ± 0.22 ind./cm2 of skin and gills, respectively, in bighead carp - 46.0% and 4.98±0.30 ind./cm2, in hybrid silver carp - 43.0% and 4.62±0.25 ind./cm2, in buffalo - 50.0% and 5.17±0.39 ind./cm2, in common carp - 35.0% and 3.84±0.18 ind./cm2, in mirror carp - 40.0% and 4.12±0.20 ind./cm2. The nature of the distribution of kaligoz in different fish species in the pond waters of Dagestan allows us to consider invasion as an increasing epizootic threat and biological risk for aquaculture of artificial reservoirs in the Terek River basin, requiring quarterly monitoring of the situation.

Keywords: pond fish, pool, pond, parasitic crustaceans Caligus lacustris, skin, gills, invasion, occurrence index, abundance index, Terek river, Republic of Dagestan.

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Author affiliation:

Alieva Kamilla G., Ph.D. in Biology, docent of the Department of Medical Biology of the Dagestan State Medical University; 1, Lenina sq., Makhachkala, Republic of Dagestan, 367000; e-mail: kamilla.1974@mail.ru.

Daniyalova Patimat M., Ph.D. in Biology, docent of the Department of Medical Biology of the Dagestan State Medical University; 1, Lenina sq., Makhachkala, Republic of Dagestan, 367000; e-mail: daniyelova-2020@yandex.ru.

Kaloshkina Inna M., Ph.D. in Veterinary Medicine, head of the department of antiparasitic, veterinary and sanitary measures of the Krasnodar regional station of fighting against animal diseases; 15/1, Kalinina st., Krasnodar, 350004; phone: 8-918-4656939; e-mail: beretarinna@gmail.com.

Lysenko Aleksandr A., D.Sc. in Veterinary Medicine, professor, professor of the Department of Therapy and Pharmacology of the Kuban State Agrarian University named after I.T. Trubilin; 13, Kalinina st., Krasnodar, 350044; phone: 8-961-5075415; e-mail: vet.kubgau@mail.ru.

Medvedeva Anna M., post-graduate student of the Kuban State Agrarian University; 13, Kalinina st., Krasnodar, 350044; phone: 8-918-0155290; e-mail: medvedeva778@mail.ru.

Responsible for correspondence with the editorial board: Bittirov Anatoly M., D.Sc. in Biology, Professor of the Department of Veterinary Medicine of the Kabardino-Balkaria State Agrarian University named after V.M. Kokov; 1, Lenina st., Nalchik, Republic of Kabardino-Balkaria, 360030; phone: 8-8662-471772; e-mail: bam_58a@mail.ru.