A large silver deposit Mangazeyskoe at the headwaters of the Yana River basin in North-East Yakutia has a considerable impact on vulnerable ecosystems of Alpine tundra. In the case of inadequate environmental protection measures, adverse environmental consequences may occur. The particular interest is the hydrobiological status of the rivers affected by the mining production waste water. In this regard, quantitative and qualitative baselines for water pollution indicators were studied. For the first time, preliminary data on the species composition of algae in the phytoplankton, phytoperiphyton, and zoobenthos of the watercourses at the Mangazeyskoe deposit. In the algal flora of reservoirs in the area of the Mangazeyskoe deposit, 230 identified species have been as represented by 260 intraspecific taxa, including those represented by a nomenclature type from 8 divisions. In the zoobenthos of the area under study, 28 species and forms belonging to three types have been found: annelids, arthropods and mollusks. It has been determined that the main part of the species of zoobenthos belongs to amphibiotic insects, which accounts for more than 70%. It has been noted that the current studied background condition of algae and zoobenthos in the area of the deposit consists mainly of cryophilic species.

雅库特东北部亚纳河流域上游的大型银矿Mangazeyskoe对脆弱的高山冻原生态系统有相当大的影响。如果环境保护措施不充分，可能会对环境造成不利影响。特别令人感兴趣的是受采矿生产废水影响的河流的水生生物状况。在这方面，研究了水污染指标的定量和定性基准。关于Mangazeyskoe矿床水道浮游植物，浮游植物和底栖动物中藻类物种组成的初步数据是首次。在Mangazeyskoe矿床地区的水库藻类植物区系中，有260种种内类群代表了230种已识别物种，包括以8个部门的命名法类型表示的那些。在研究区域的底栖动物中，发现了28种物种和形式，属于三种类型：无节肢动物，节肢动物和软体动物。已经确定，动物底栖动物的主要部分属于两栖昆虫，占两栖类昆虫的70％以上。已经注意到，目前研究的沉积物区域中的藻类和底栖动物的背景条件主要由嗜冷菌种组成。