Fish parasite fauna of the middle reaches of the Lena river and its tributaries under growing man-caused impact

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Abstract

On the middle course of the Lena river there is a large extent of infection of fish with parasites with a complex development cycle. Infection of the pike with plerocercoids of Diphyllobothrium latum is caused by contamination with communal sewage. In the parasitofauna of the fish of the Vilyui river, an increase in the simplest gill trichodinis observed, which is associated with the eutrophication of the reservoir. The fish of the Aldan river showed a greater extent of invasion by myxosporidia than in fish from the middle reaches of the Lena river. The focus of diphyllobothriosis in the middle reaches of the Lena river is facilitated by the contamination of the reservoir with municipal waste from urban sewers and discharges of river vessels during navigation. In general, the epizootic situation in reservoirs, subject to anthropogenic impact, and adjacent territories is not entirely satisfactory. It may be improved with the decreased contamination of the external environment and hence the increased resistance of the fish organism.

About the authors

Terenty Afanasevich Platonov

Yakutsk State Agricultural Academy

Author for correspondence.
Email: ysaa.ykt@gmail.com

Candidate in Biology, Associate Professor of the Department of Parasitology and Epizootology of Agricultural Animals, Yakutsk State Agricultural Academy

3 Sergelyakh Shosse 3 km, Yakutsk, 677007, Russian Federation

Natalia Vasilevna Kuzmina

Yakutsk State Agricultural Academy

Email: ysaa.ykt@gmail.com

Candidate in Biology, Senior Lecturer of the Department of Internal Non-Infectious Diseases, Pharmacology and Obstetrics named after Professor G.P. Serdtsev, Yakutsk State Agricultural Academy

3 Sergelyakh Shosse 3 km, Yakutsk, 677007, Russian Federation

Ayan Nikolaevich Nyukkanov

Yakutsk State Agricultural Academy

Email: ysaa.ykt@gmail.com

Doctor in Biology, Associate Professor, Head of the Department of Internal Non-Infectious Diseases, Pharmacology and Obstetrics named after Professor G.P. Serdtsev, Yakutsk State Agricultural Academy

3 Sergelyakh Shosse 3 km, Yakutsk, 677007, Russian Federation

Galina Petrovna Protodyakonova

Yakutsk State Agricultural Academy

Email: ysaa.ykt@gmail.com

Doctor in Veterinary, Professor of the Department of Parasitology and Epizootology of Agricultural Animals, Yakutsk State Agricultural Academy

3 Sergelyakh Shosse 3 km, Yakutsk, 677007, Russian Federation

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Copyright (c) 2018 Platonov T.A., Kuzmina N.V., Nyukkanov A.N., Protodyakonova G.P.

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