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The species composition of zooplankton in 17 lakes is described. Its ecogeographical and faunal analysis provides information about the abundance, biomass, and structural indicators. These data are used for assessing the trophic status of lakes located in the valleys of the Uldza and Kerulen rivers in northeastern Mongolia. On the basis of the published data, the dynamics of zooplankton in lakes in...
The morphology of the diatom genus Epithemia from ecosystems of Central Asia (Russia and Mongolia) is studied. It is shown that in the studied ecosystems there are species with local or endemic distribution, like in Lake Baikal, and taxa known from the Holarctic. Original morphological descriptions and pictures of 13 taxa are given. Three new taxa are described. They are E. compacta Kulikovskiy &...
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