Abstract

Materials on the aquatic invertebrate fauna in the Maly Patok River basin (the western slopes of the Subpolar Urals) have been presented. These water bodies, which maintain the natural hydrological regime, are located on the territory of the Yugyd-Va National Park. A total of 108 taxa (except for Chironomidae) in the zoobenthos samples and the invertebrate qualitative collections taken in the summer periods in 1996, 2000–2007, and 2017 are identified. Among them, amphibiotic insects prevail in the watercourses, while oligochaetes and mollusks dominate in the lakes in regards to number of species. Mayflies of the families Baetidae and Heptageniidae, stoneflies of Perlodidae, caddisflies of Rhyacophilidae and Apataniidae, and the Elmidae beetles are mostly present in the rivers. Oligochaetes of Naididae and mollusks of the families Planorbidae and Sphaeriidae are most abundant and diverse in the lakes. The most frequent species have Palearctic (29.0%) and Holarctic (25.5%) habitat ranges. In addition to the widespread European species, some species are recorded that have the largest part of their ranges in Siberia. Rare species in the fauna composition have been revealed.

中文翻译：

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茉莉帕图克河流域的水生动物区系（亚极乌拉尔）：II。无脊椎动物

摘要

介绍了马里帕图克河流域（亚极乌拉尔的西坡）水生无脊椎动物区系的材料。这些保持自然水文状况的水体位于Yugyd-Va国家公园的领土上。识别出了底栖动物样本中的总共108个分类单元（除尺齿科），并确定了1996、2000-2007和2017年夏季采集的无脊椎动物定性集合。其中，两栖类昆虫在水道中占主导地位，而就种类数量而言，寡头类和软体动物在湖泊中占主导地位。河流中主要存在Ba科和七子科的科，Per科的stone科，Rhyacophilidae和Apataniidae的cad虫以及Elmidae甲虫。湖泊中的id科的寡头类和浮游科和鳞翅目科的软体动物种类最多。最常见的物种有古生物（29.0％）和Holarctic（25.5％）的栖息地范围。除了分布广泛的欧洲物种外，在西伯利亚还记录了一些最大范围的物种。动物群组成中的稀有物种已被发现。