On the issue of localization of P. Otodectes ticks in Arctic foxes (Alopex lagopus semenovi, Ognev, 1931) Medny Island (Commander Islands)
https://doi.org/10.52419/issn2072-2419.2025.1.107
Abstract
The article presents the results of a parasitological study of scrapings from the skin of the inner surface of the auricle, scalp, back, side surfaces, front and hind limbs, hair with epidermal scales of the corpse of Arctic fox puppy (Vulpes lagopus semenovi Ognev) at the age of 3-4 months, delivered from Medny Island, which is part of the Commander Islands (Russia). At the Department of Parasitology named after V.L. Yakimov of the St. Petersburg State University of Veterinary Medicine biological material was placed in 50% glycerin and examined by light microscopy using a Primo Star Zeizz microscope (Germany) under magnification of 40 and 100. Microscopy revealed acariform mites in all phases of development: egg, larvae, nymphs and adults. According to morphological features, such as: body shape, limb length, location of ambulacres on them, structure of the gnatosome, ticks are identified to the genus Otodectes. Microscopy of scrapings from the scalp, back, lateral surfaces, front and hind limbs of the arctic fox and wool with epidermal scales revealed ticks with morphological features characteristic of the genus. Otodectes. In the scrapings in the field of view at 40-fold magnification, the number of ticks ranged from 12 to 20 and indicated a high intensity of invasion. Since skin-eating ticks, including otodectes, have high specificity for the localization site, therefore, the detection of ticks of the genus. Otodectes in places of localization not specific to them is interesting in order to study their species affiliation. The purpose of further research will be a genetic analysis of ticks found on the surface of the arctic fox body to confirm the validity of the species parasitizing in carnivores - O.cynotis.
About the Authors
N. A. Gavrilova
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Gavrilova N.A. – Dr. Veterinarian Sciences, Prof., Prof. of the Department parasitology named after V. L. Yakimov
V. N. Gaponova
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Gaponova V.N. – Associate professor of the Department of Pathophysiology
E. G. Mamaev
National Park "Commander Islands" named after S.V. Marakov
Russian Federation
Russian Federation
Mamaev E.G. – Candidate of Biological Sciences, Deputy Director according to scientific work
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For citations:
Gavrilova N.A., Gaponova V.N., Mamaev E.G. On the issue of localization of P. Otodectes ticks in Arctic foxes (Alopex lagopus semenovi, Ognev, 1931) Medny Island (Commander Islands). International Journal of Veterinary Medicine. 2025;(1):107-113. (In Russ.) https://doi.org/10.52419/issn2072-2419.2025.1.107
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