[EPIZOOTOLOGICAL CHARACTERIZATION OF TREMATODIASIS FOCI IN THE ECOSYSTEM OF THE AMUR RIVER IN THE KHABAROVSK TERRITORY].

R G Fattakhov, A V Ushakov, T F Stepanova, O E Trotsenko, I B Ivanova, A G Dragomeretskaya
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Abstract

Investigations were conducted in late June to early June 2013. The population density of mollusks of the genus Juga in the shoreline and littoral covered by meadow waters was 10 to 30 specimens/m2; there were solitary specimens of the genus Parafossarulus. Fourteen out of 39 fish species were invaded by metacercariae of Clonorchis. Manchurian spiny loaches (Leptobotia) and Light's bitterling (Rhodeus lighti) are first registered to be hosts of Clonorchis. The metacercariae of Metagonimus yokogawai were detected in silver carp (Hypophthalmichthys molitrix) and those of Nanophyetus salmincola schikhobalowi were in the kidneys, fin muscles, and gills of taimen (Hucho) and lenok (Brachymystax lenok) from the Khor River. The invasion rate for the taimen was greater than 1000 metacercariae and that for the lenok was not more than 720 metacercariae per fish.

[哈巴罗夫斯克地区阿穆尔河生态系统中吸虫病疫源地的流行病学特征]。
调查于2013年6月底至6月初进行。在被草甸水体覆盖的岸线和沿岸地区,长牙属软体动物种群密度为10 ~ 30只/m2;有单生的副栉龙属标本。39种鱼类中有14种被支支睾吸虫囊蚴侵染。满洲的刺泥鳅(Leptobotia)和光刺泥鳅(Rhodeus lighti)首次被登记为支支罗氏支原体的宿主。在豪尔河鲢鱼(Hypophthalmichthys molitrix)的肾脏、鳍肌和鳃中检出横河粗粒绦虫,在虎鱼(Hucho)和鲤(Brachymystax lenok)的鳃中检出细粒细粒绦虫。鱼的入侵率大于1000个囊蚴,鱼的入侵率不大于720个囊蚴。
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