The ecological monitoring of limnetic water bodies on macrobenthic invertebrates in the Republic of Buryatia (Russia) is characterized by the lack of unified net of known stations of samples taking. Deficiency of exact data on the geographic position of the stations and the detail information on the methods of samples taking complicates the analysis of long-term dynamics of population characteristics of the macrobenthic species in the water bodies, which is needed in the monitoring investigations. We propose the unified grid of stations for the macrobenthic invertebrates studying which was realized at the lakes Gusinoe, Kotokel, Bol’shoe Eravnoe, Sosnovskoe, Gunda and Baunt early in the summer during 2013–2017 for the first time. The paper is dedicated to the methods of investigations and characteristics of studied stations, including their GPS position, depth, bottom sediments, vegetation compound, water temperature and saturation with oxygen, pH values and water transparency. This information we propose as basic for the later monitoring of the lakes’ ecosystems on macrobenthic animals. Results of grid implementation are illustrated by the example of data on spatial distribution of native Gammarus lacustris Sars, 1863 and alien Gmelinoides fasciatus (Stebbing, 1899) and Micruropus wohlii (Dybowsky, 1874) amphipods in the Eravnoe lakes’ system in May 2016. We demonstrate that present conditions of the Sosnovskoe Lake ecosystem are suitable for the population growth of native G. lacustris, which has occupied almost all biotopes of the lake and has values of biomass here up to 80–110 g/m², density – up to 3800–4300 ind./m². We could not found alien species in the Sosnovskoe Lake, but they still inhabit the Bol. Eravnoe Lake and the Gunda Lake. Their abundance in the lakes was low and the highest values of both species reached 1600 ind./m² and 11,5 g/m². We examine the probable influence of lake level decreasing on abundance of native and alien species of amphipods.

Matafonov Dmitry Viktorovich, Candidate of Sciences (Biology), Deputy Director, Baikalian Branch of Gosrybcentr FSBSI, 4b, Khakhalov st., Ulan-Ude, 670034, Russian Federation, tel.: (3012) 44–15–89, e-mail: dimataf@yandex.ru 

Bazova Natalia Vladimirovna, Candidate of Sciences (Biology), Research Scientist, Institute of General and Experimental Biology SB RAS, 6, Sakhyanova st., Ulan-Ude, 670047, Russian Federation, tel.: (3012) 43–42–29, e-mail: selengan@yandex.ru

Matafonov D.V., Bazova N.V. A New Approach to the Stations Grid Design for Monitoring of Limnetic Water Bodies of Buryatia Republic (Russia) on Macrobenthic Invertebrates: First Implementation and Analysis of Amphipods Distribution in the Eravnoe Lake System. The Bulletin of Irkutsk State University. Series Biology. Ecology, 2018, vol. 24, pp. 86-109. https://doi.org/10.26516/2073-3372.2018.24.86 (in Russian)

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