Helminths in fish from lake and river systems of the Upper Kolyma Highlands that have medical and veterinary significance

• Published in: Malaria Journal
• Main Authors: V. V. Pospekhov, В. В. Поспехов
• Other Authors: The research was performed in the course of a state task on the topic: Helminths in Biocenoses of North-East Asia: Biodiversity, Morphology and Molecular Phylogenetics under No. 1021060307693-0, and for grants given by the Russian Geographical Society, 2018, 2021, under the projects Lake and River Systems of Highland Glacial Plains in Permafrost Zones, and Expedition to the Southern Spurs of the Chersky Range, south of the Omulevsky Middle Mountains. We express our gratitude to G. I. Atrashkevich (Institute of Biological Problems of the North, Far Eastern Branch RAS, Magadan) for consultations and comments and P. V. Grigoriev (Magadan branch of the VNIRO – Russian Federation Research Institute of Fishery and Oceanography (MagadanNIRO)) for his assistance in collecting ichthyological material., Исследования проведены в ходе выполнения государственного задания по теме: «Гельминты в биоценозах Северо-Восточной Азии: биоразнообразие, морфология и молекулярная филогенетика» № 1021060307693-0 и грантов Русского географического общества 2018, 2021 гг. по проектам «Озерно-речные системы высокогорных ледниковых равнин криолитозон» и «Экспедиция к южным отрогам хребта Черского, юг Омулевского среднегорья». Выражаем признательность Г. И. Атрашкевичу (ИБПС ДВО РАН, г. Магадан) за консультации и замечания и П. В. Григорьеву (Магаданский филиал ВНИРО (МагаданНИРО)) за помощь в сборе ихтиологического материала.
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: ВНИИП – филиал ФГБНУ ФНЦ ВИЭВ РАН 2024
• Subjects: Магаданская область; diphyllobothriosis; eustrongylidosis; freshwater fish; lake and river systems; Upper Kolyma; Magadan Region; дифиллоботриоз; эустронгилез; пресноводная рыба; озерно-речные системы; Верхняя Колыма; Arctic; Sakha; Kolyma; Magadan; Fish Lake; Darpir; Burbot; Catostomus catostomus; East Siberian grayling; Lota lota; Republic of Sakha; Salvelinus alpinus; Thymallus arcticus; Yakutia; lota
• Online Access: https://vniigis.elpub.ru/jour/article/view/1195; https://doi.org/10.31016/1998-8435-2024-18-3-237-247

The purpose of the research is to extend information across the distribution of zooanthroponotic helminth infections transmitted through freshwater fish in the Magadan Region.Materials and methods. The study area is located in the Upper Kolyma basin on the Magadan Region and the Republic of Sakha (Yakutia) border. The Omulevsky Park is also located here, one of the clusters of the Chersky National Park named after A. V. Andreev. The existing lake and river systems (Darpir, Momontai, Malyk, Urultun and Ui) are inhabited by 7 fish species: Arctic char (Salvelinus alpinus), east-Siberian grayling (Thymallus arcticus pallasi), round fish (Prosopium cylindraceum), Siberian sucker (Catostomus catostomus rostratus), burbot (Lota lota leptura), common minnow (Phoxinus phoxinus) and sculpin from the Kolyma (Cottus kolymensis). 685 specimens of fish were undergone parasitological survey using established procedures. The found helminths were fixed in 70% ethanol and clarified in glycerol.Results and discussion. In the study of the fish helminth fauna in the lake and river systems of the Upper Kolyma Highlands, three helminth species that posed a danger to humans and animals were identified, Dibothriocephalus dendriticus, D. ditremus (Diphyllobothriidae) and Eustrongylides excisus (Dioctophymatidae). Information was provided on fish infection with these parasites in the lake and river systems, and their distribution in the Magadan Region, and a brief description of these types of helminths was given. In domestic scientific and methodological publications, the problem of eustrongylidiasis as a zooanthroponotic disease is not sufficiently covered, therefore, emphasis is placed on nematodes of the genus Eustrongylides. The research results may attract the attention of sanitary and veterinary service specialists to this issue, especially given the creation of a national park in the Magadan Region. Data on the freshwater fish infection with Diphyllobothriidae in the Upper Kolyma Lake and river systems expand the ...