Journal of Siberian Federal University. Biology / Macrozoobenthos as an Indicator of the Ecological Status of Lakes Kholmovskoye and Lakhta

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Issue
Journal of Siberian Federal University. Biology. 2026 19 (1)
Authors
Artemyev, Sergey N.; Pryanichnikova, Ekaterina G.; Klimovskiy, Nikolay; Novoselov, Alexander P.
Contact information
Artemyev, Sergey N.: Bureau of Marine and Terrestrial Environmental Research, LLC (Moscow, Russian Federation); ; ORCID: 0000-0001-8544-2980; Pryanichnikova, Ekaterina G. : Papanin Institute for Biology of Inland Waters RAS (Borok, Russian Federation); ORCID: 0000-0002-8549-8252; Klimovskiy, Nikolay : N. Laverov Federal Center for Integrated Arctic Research UrB RAS (Arkhangelsk, Russian Federation); ORCID: 0000-0002-2862-1701; Novoselov, Alexander P. : N. Laverov Federal Center for Integrated Arctic Research UrB RAS (Arkhangelsk, Russian Federation); ORCID: 0000-0001-9501-8120
Keywords
Arkhangelsk Region; bottom community; pond; abundance; biomass; state of the environment; water quality
Abstract

During 2022–2023, the water quality of Lake Kholmovskoye and Lake Lakhta (the Arkhangelsk Region) was assessed using hydrochemical parameters and macrozoobenthos characteristics, such as species composition, abundance, biomass, Shannon and Pielou indices, and saprobity. In Lake Kholmovskoye in the summer of 2022, the average abundance of macrozoobenthos was 492±171 specimens per m², with a biomass of 4.08±0.7 g per m². In the winter of 2023, it was 360±101 specimens per m², with a biomass of 4.93±1.1 g per m². In the summer of 2023, it was 341±109 specimens per m², with a biomass of 3.70±1.8 g per m². In Lake Lakhta in summer 2023, there were 159±45 individuals of macrozoobenthos and 6.42±2.55 g of biomass per m². Based on the average annual content of biogenic elements (mineral nitrogen and phosphorus), these lakes can be classified as oligotrophic xenosaprobic and oligosaprobic water bodies with clean water, but based on the biomass of macrozoobenthos, Lake Kholmovskoye is classified as alpha-mesotrophic, and Lake Lakhta is classified as beta-mesotrophic. Lakes Kholmovskoye and Lakhta are classified as α- mesosaprobic based on the Pantle- Buck index (macrozoobenthos composition). During the observation period, the taxonomic list in Lake Kholmovskoye included 64 % saprobity indicators: α- mesosaprobes constituted 71 % of the taxa, followed by β- mesosaprobes at 19 % and polysaprobes at 10 %. The Lake Lakhta macrozoobenthos taxonomic list included 71 % saprobity indicators, α- and β-mesosaprobes constituting 40 % each and polysaprobes making up 20 %. The macrozoobenthos-based assessment of the environmental state of the lakes using various methods showed that the oligochaete index is most effective for monitoring water quality. The results of water quality assessment using the oligochaete index are consistent with the hydrochemical analysis data

Pages
11–30
EDN
AMBWWI
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/158243

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