Journal “Parazitologiya” - Archive

Morphology of two new species of Cercariae virgulae (Lühe, 1909) group. P. 169-184.

Two new species of virgulous cercariae are described. Morphological descriptions and differential diagnoses are given. Each description is supplemented with a detailed picture.

in Russian

Sokolov S.G., Alshinetsky M.V., Berezin M.V., Efeykin B.D., Spiridonov S.Ed.

Acanthocephalans Prosthenorchis cf. elegans (Archiacanthocephala: Oligacanthorhynchidae), parasites of primates in the Moscow Zoo. P. 185-196.

Acanthocephalans Prosthenorchis cf. elegans were found in primates in the Moscow Zoo. The larvae of these parasites (cistacanths) were found in cockroaches Blattella germanica that had been captured near aviaries of infected animals. Descriptions and drawings of adult parasites and their larvae are given. Analysis of Prosthenorchis cf. elegans genes ITS 1 rDNA and CO 1 mtDNA shows phylogenetic relations of these parasites with several representatives of the class Archiacanthocephala. The obtained molecular data, however, do not support the monophyly of the family Oligacanthorhynchidae and the order Oligacanthorhynchida.

in Russian

Ostroverkhova N.V., Konusova O.L., Kucher A.N., Simakova A.V., Golubeva E.P., Kireeva T.N., Sharakhov I.V.

Infestation of honeybee (Apis mellifera) families by microsporidians of the genus Nosema in Tomsk Province. P. 197-210.

Infestation of bee colonies and apiaries by representatives of the genus Nosema, microsporidian protozoans of European honeybees (Apis mellifera L.), causing nosemosis, in Tomsk Province was investigated. In 2012—2015, nosemosis was detected in 32 out of 124 honeybee colonies (31.3%) and in 20 out of 64 studied apiaries (25.8%). The maximal infestation rate of bee colonies and apiaries constituted more than 40% in 2014—2015. N. apis pathogen was registered in 84.4% of infected bee colonies (16 apiaries); N. ceranae was identified in 9.4% of infected bee colonies (2 apiaries); and co-infection (N. apis and N. ceranae) was detected in 6.3% of infected bee colonies (2 apiaries). The reasons of the spreading of the nosemosis, such as climatic conditions, control of imported bee colonies on the presence of Nosema infection, and some others are discussed.

in Russian

Островерхова Н.В., Конусова О.Л., Кучер А.Н., Симакова А.В., Голубева Е.П., Киреева Т.Н., Шарахов И.В.

Зараженность семей медоносной пчелы (Apis mellifera) микроспоридиями рода Nosema (Microsporidia) на пасеках Томской области. С. 197-210.

Исследована зараженность пчелосемей n пасек Томской обл. микроспоридиями рода Nosema, вызывающими опасное инвазионное заболевание медоносной пчелы — нозематоз. В период с 2012 по 2015 г. было исследовано 124 пчелосемьи с 64 пасек, из них нозематоз выявлен на 20 пасеках (31.3% от общего количества) у 32 пчелосемей (25.8% от общего количества). Наибольшее количество зараженных микроспоридиями рода Nosema пчелосемей и пасек наблюдалось в 2014—2015 гг. (более 40%). Из общего числа зараженных нозематозом пчелиных семей в 84.4 % пчелосемей (с 16 пасек) зарегистрирован только возбудитель Nosema apis; в 9.4% пчелосемей (с 2 пасек) выявлен более патогенный возбудитель нозематоза — Nosema ceranae и в 6.3 % пчелосемей (с 2 пасек) обнаружена ко-инфекция — регистрировались совместно N. apis и N. ceranae. Обсуждаются возможные причины распространения микроспоридий рода Nosema: климатические условия, недостаточный контроль ввозимых пчелиных семей на зараженность нозематозом и некоторые другие.

Busarova O.Yu., Boutorina Т.E., Markevich G.N., Anisimova L.A.

Parasite fauna of the landlocked sockeye salmon (Oncorhynchus nerka) of the Lake Kronotskoe (Kamchatka). P. 211-223.

Parasites of the landlocked sockeye salmon Oncorhynchus nerka Walbaum, 1792 of the Lake Kronotskoe are described for the first time. Twenty parasite species belonging to 7 classes were found, including Myxosporea, Monogenea, Trematoda, Cestoda, Nematoda, Acantocephala, and Crustacea. In comparison with benthivorous fishes (< 39 gill rakers), infected mostly by Crepidostomum metoecus (Braun, 1900) (abundance 146.5) and Crepidostomum farionis (Muller, 1874) (abundance 23.9), planktivorous fishes with high number of gill rakers (> 39) were significantly stronger infected with the acanthocephalan Neoechinorhynchus salmonis Ching, 1984 (abundance index 306.0) and the tapeworm Proteocephalus longicollis (Zeder, 1800) (abundance index 60.5). Planktivorous fishes feed mainly on ostracods and copepods, whereas benthivorous fishes consume amphibiotic insects, including their larvae and pupae. During prespawning period fish episodically consume gammarids and mollusks.

in Russian

Glupov V.V., Kryukova N.A.

Physiological and biochemical aspects of interactions between patasitoids of the class Insecta and their hosts. P. 224-242.

In the present review, available literary data on physiological and biochemical interactions between parasitoids and their hosts are analyzed. In order to achieve the successful development in or on their host, parasitoids widely use various strategies suppressing host's immunity. Suppression agents used by parasitoids include venom and ovarian fluid components and symbiotic microorganisms. The effect of parasitoids on host organism is complicated, covering many vital physiological functions supplemented by changes of host metabolism and behavior. The influence of ecto- and endoparasitoids on host organism is analyzed separately.

in Russian

Obituary

Obituary. P. 243-245.

---

in Russian

Obituary

Obituary. P. 246-248.

---

in Russian