Geoecological functions of the Baikal endemic amphipod Gmelinoides fasciatus in the bottom subsystem of the cooling reservoir of the Chita TPP-1
https://doi.org/10.31857/S0869607124020067
EDN: MOPQEC
Abstract
The geoecological situation in the natura-technical geoecosystems of Baikal Asia is complicated by the invasion of alien species. Information about the Baikal endemic amphipod Gmelinoides fasciatus that penetrated into the cooling reservoir of the Chita TPP-1 is insufficient to assess the current geoecological situation in the benthic subsystem of the cooling reservoir. The purpose of our research of the study was to identify the geoecological features and functions of Gm. fasciatus affecting the geoecological situation in the benthic subsystem of the Chita TPP-1 cooling reservoir. In 2022–2023 the Gm. fasciatus distribution, size structure of the population and elemental composition have been studied in Kenon Lake. It is established that Gm. fasciatus has settled the coastal zone of the lake, the size and structure of the population indicate its stability. The P content in the crude mass of Gm. fasciatus in the lake is 29.7 kg, Ca — 444 kg, Cu — 0.28 kg. Due to the Gm. fasciatus invasion in Kenon Lake, in the monitoring and management system of the cooling reservoir, it is now possible to use a new indicator of the state of the bottom subsystem. Invasion of the amphipod Gm. fasciatus entailed a change in the geoecological situation in the cooling reservoir of Chita TPP-1 — Kenon Lake.
About the Authors
A. B. Shoydokov
Institute of Natural Resources, Ecology and Cryology of the SB RAS
Russian Federation
Russian Federation
Shoydokov Alexander Bulatovich, Laboratory of Aquatic Ecosystems, postgraduate student, acting junior researcher
P. V. Matafonov
Institute of Natural Resources, Ecology and Cryology of the SB RAS
Russian Federation
Russian Federation
Matafonov Petr Viktorovich, Laboratory of Aquatic Ecosystems, Candidate of Biological Sciences, Researcher
S. V. Borzenko
Institute of Natural Resources, Ecology and Cryology of the SB RAS
Russian Federation
Russian Federation
Borzenko Svetlana Vladimirovna, Laboratory of Geoecology and Hydrogeochemistry, Doctor of Geological and Mineralogical Sciences, Chief Researcher
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Review
For citations:
Shoydokov A.B., Matafonov P.V., Borzenko S.V. Geoecological functions of the Baikal endemic amphipod Gmelinoides fasciatus in the bottom subsystem of the cooling reservoir of the Chita TPP-1. Proceedings of the Russian Geographical Society. 2024;156(2):169-177. (In Russ.) https://doi.org/10.31857/S0869607124020067. EDN: MOPQEC
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