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Geoenvironmental Implications and Biocenosis of Freshwater Lakes in the Arid Zone of East Kazakhstan

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dc.contributor.author Samarkhanov, Talant N.
dc.contributor.author Myrzagaliyeva, Anar B.
dc.contributor.author Chlachula, Jiri
dc.contributor.author Kushnikova, Ludmila B.
dc.contributor.author Czerniawska, Jolanta
dc.contributor.author Nigmetzhanov, Sayan B.
dc.date.accessioned 2024-10-16T05:52:03Z
dc.date.available 2024-10-16T05:52:03Z
dc.date.issued 2021
dc.identifier.citation Samarkhanov, T.N.; Myrzagaliyeva, A.B.; Chlachula, J.; Kushnikova, L.B.; Czerniawska, J.; Nigmetzhanov, S.B. Geoenvironmental Implications and Biocenosis of Freshwater Lakes in the Arid Zone of East Kazakhstan. Sustainability 2021, 13, 5756. https://doi.org/10.3390/su13105756 ru
dc.identifier.issn 2162-5689
dc.identifier.other doi.org/10.3390/su13105756
dc.identifier.uri http://rep.enu.kz/handle/enu/17735
dc.description.abstract Steppe and semi-desert lakes of Central Asia represent unique and still poorly known aquatic ecosystems. The paper provides summaries of multi-proxy environmental and biological investigations of the previously unexplored ground of Sibe lakes in the naturally pristine zone of East Kazakhstan, and of their contributions to people. Data on the taxonomic composition of zooplankton and zoobenthos of these freshwater lacustrine basins are presented in terms of the species’ frequency of occurrence; the abundance of the aquatic biomass and the analyzed water geochemical variables insofar as they are dependent and correlative. The qualitative and quantitative records display variability in the biocenosis diversity due to the lakes’ geochemistry and hydrology differences— some lakes being oligotrophic and others being moderately trophic. In the latter case, the lakes characterized by an increased macrozoobenthos biomass are favourable for local ichthyofauna. Saprobiological analysis reveals the predominance of β-saprobic species in the zooplankton composition pointing to slight or moderate pollution of surface waters due to natural biotic substances. This observation is in agreement with differences in the water quality of solitary lakes. The uneven distributions of benthic invertebrates (in terms of taxonomy and species populations) in the water bodies suggest specific hydro-ecological conditions that predetermine the structure of the lakes’ biocenosis. The littoral part of the lakes is characterized by the highest abundance of zooplankton and benthic fauna. The Sibe lakes are an example of an autonomous functioning of the lacustrine basins in the upland arid steppe zone, which is characterized by pronounced climate “continentality” and a high level of the sub-aquatic flora and fauna endemism. The present results are relevant to the understanding of the ecosystems’ dynamics and the modern anthropogenic impacts upon the pristine parkland-steppe landscapes of Central Asia, with implications for regional nature protection and sustainable eco-recreation. ru
dc.language.iso en ru
dc.publisher Sustainability ru
dc.relation.ispartofseries 13;5756
dc.subject East Kazakhstan ru
dc.subject lakes ru
dc.subject hydrogeology ru
dc.subject aquatic ecosystems ru
dc.subject macrozoobenthos ru
dc.subject sustainable water management ru
dc.subject environmental conservation ru
dc.title Geoenvironmental Implications and Biocenosis of Freshwater Lakes in the Arid Zone of East Kazakhstan ru
dc.type Article ru


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