Abstract
Biological entities and gradients of selected chemicals within
the seemingly barren ice layers covering Lake Baikal were
investigated. Ice cores 40–68 cm long were obtained from
inshore and offshore sites of Southern Lake Baikal during
the cold period of a year (March-April) in 2007 and 2008.
In microscopic observations of the melted ice, both algae
and bacteria were found in considerable numbers (>103
cells/L and >104 cells/ml, respectively). Among all organisms
found, diatom was generally the most predominant taxon
in the ice. Interestingly, both planktonic and benthic algae
were present in considerable numbers (2–4×104 cells/L).
Dominant phototrophic picoplankton were comprised of
small green algae of various taxa and cyanobacteria of
Synechococcus and Cyanobium. The bacterial community
consisted mostly of short rod and cocci cells, either freeliving
or aggregated. Large numbers of yeast-like cells and
actinomycete mycelium were also observed. Concentrations
of silica, phosphorus, and nitrate were low by an order of
magnitude where biota was abundant. The profile of the ice
could be interpreted as vertical stratification of nutrients and
biomass due to biological activities. Therefore, the organisms
in the ice were regarded to maintain high activity while
thriving under freezing conditions. Based on the results, it
was concluded that the freshwater ice covering the surface
of Lake Baikal is considerably populated by extremophilic
microorganisms that actively metabolize and form a detritus
food chain in the unique large freshwater ecosystem of
Lake Baikal.
Citations
Citations to this article as recorded by

- A comparison of phytoplankton development in Lake Baikal, Siberia, and Rybinsk Reservoir, Volga River, European Russia, using stability indices
Natalya Mineeva, Nina Bondarenko
Journal of Great Lakes Research.2025; 51(1): 102493. CrossRef - Reduced snow and increased nutrients show enhanced ice‐associated photoautotrophic growth using a modified experimental under‐ice design
Lesley B. Knoll, Benton Fry, Nicole M. Hayes, Hailey M. Sauer
Limnology and Oceanography.2024; 69(1): 203. CrossRef - Genomic Insights into the Bactericidal and Fungicidal Potential of Bacillus mycoides b12.3 Isolated in the Soil of Olkhon Island in Lake Baikal, Russia
Maria N. Romanenko, Anton E. Shikov, Iuliia A. Savina, Fedor M. Shmatov, Anton A. Nizhnikov, Kirill S. Antonets
Microorganisms.2024; 12(12): 2450. CrossRef - Features of the Under-Ice Development of Phytoplankton in Northern Lakes
A. N. Sharov, N. A. Berezina, A. A. Maximov, O. B. Maximova
Inland Water Biology.2024; 17(1): 100. CrossRef - Features of the under ice development of phytoplankton in northern lakes
A. N. Sharov, N. A. Berezina, A. A. Maximov, O. B. Maximova
Биология внутренних вод.2024;[Epub] CrossRef - Changes in Phyto- and Zooplankton under the Climatic Shifts and Anthropogenic Load (Lake Baikal, Russia)
N. A. Bondarenko, I. V. Tomberg, O. G. Pen’kova, N. G. Sheveleva
Биология внутренних вод.2023; (6): 727. CrossRef - Abundant production of dimethylsulfoniopropionate as a cryoprotectant by freshwater phytoplanktonic dinoflagellates in ice-covered Lake Baikal
Kei Toda, Vladimir Obolkin, Shin-Ichi Ohira, Kentaro Saeki
Communications Biology.2023;[Epub] CrossRef - Structural Changes of Phyto- and Zooplankton under the Influence of Climate Change and Anthropogenic Load (Lake Baikal, Russia)
N. A. Bondarenko, I. V. Tomberg, O. G. Pen’kova, N. G. Sheveleva
Inland Water Biology.2023; 16(6): 955. CrossRef - Hydrobiological characteristic of small lakes in northern Karelia during the ice-covered period
A.A. Maximov, N.A. Berezina, L.F. Litvinchuk, A.N. Sharov, O.B. Maximova, V.V. Smirnov, N.V. Usov
Proceedings of the Zoological Institute RAS.2023; 327(3): 451. CrossRef - Microeukaryotic Communities of the Long-Term Ice-Covered Freshwater Lakes in the Subarctic Region of Yakutia, Russia
Yuri Galachyants, Yulia Zakharova, Maria Bashenkhaeva, Darya Petrova, Liubov Kopyrina, Yelena Likhoshway
Diversity.2023; 15(3): 454. CrossRef - Two New Species, Mallomonas baicalensis sp. nov. and M. grachevii sp. nov. (Synurales Chrysophyceae), Found under the Ice of Lake Baikal
Anna Bessudova, Alena Firsova, Diana Hilkhanova, Mikhail Makarov, Maria Sakirko, Maria Bashenkhaeva, Igor Khanaev, Yulia Zakharova, Yelena Likhoshway
Water.2023; 15(12): 2250. CrossRef - Long-term trends in diatom diversity and palaeoproductivity: a 16 000-year multidecadal record from Lake Baikal, southern Siberia
Anson W. Mackay, Vivian A. Felde, David W. Morley, Natalia Piotrowska, Patrick Rioual, Alistair W. R. Seddon, George E. A. Swann
Climate of the Past.2022; 18(2): 363. CrossRef - Analysis of the State of Biological Communities in a Continental Water Body using Hydrooptical Characteristics
G. V. Vinokurova, I. A. Sutorikhin, A. A. Kolomeytsev, I. M. Frolenkov
Inland Water Biology.2021; 14(2): 159. CrossRef - The Lake Ice Continuum Concept: Influence of Winter Conditions on Energy and Ecosystem Dynamics
E. Cavaliere, I. B. Fournier, V. Hazuková, G. P. Rue, S. Sadro, S. A. Berger, J. B. Cotner, H. A. Dugan, S. E. Hampton, N. R. Lottig, B. C. McMeans, T. Ozersky, S. M. Powers, M. Rautio, C. M. O'Reilly
Journal of Geophysical Research: Biogeosciences.2021;[Epub] CrossRef - Under-Ice Microalgae and Algae of the Interstitial Icy Water Functioning in Lake Baikal Littoral Zone
N. A. Bondarenko, I. I. Rusanov, S. M. Chernitsyna, O. V. Shubenkova, N. V. Pimenov, T. I. Zemskaya
Microbiology.2020; 89(3): 337. CrossRef - Interconnection of bacterial and phytoplanktonic communities with hydrochemical parameters from ice and under-ice water in coastal zone of Lake Baikal
Yu. S. Bukin, N. A. Bondarenko, I. I. Rusanov, N. V. Pimenov, S. V. Bukin, T. V. Pogodaeva, S. M. Chernitsyna, O. V. Shubenkova, V. G. Ivanov, A. S. Zakharenko, T. I. Zemskaya
Scientific Reports.2020;[Epub] CrossRef - Celebrating limnology in Siberia: commemorating the 90th anniversary of the Limnological Institute in Irkutsk, Russia
Marianne V. Moore, Masumi Yamamuro
Limnology.2020; 21(1): 1. CrossRef - Recent changes in the spring microplankton of Lake Baikal, Russia
N.A. Bondarenko, T. Ozersky, L.A. Obolkina, I.V. Tikhonova, E.G. Sorokovikova, M.V. Sakirko, S.A. Potapov, V.V. Blinov, A.A. Zhdanov, O.I. Belykh
Limnologica.2019; 75: 19. CrossRef - The unique methodological challenges of winter limnology
Benjamin D. Block, Blaize A. Denfeld, Jason D. Stockwell, Giovanna Flaim, Hans‐Peter F. Grossart, Lesley B. Knoll, Dominique B. Maier, Rebecca L. North, Milla Rautio, James A. Rusak, Steve Sadro, Gesa A. Weyhenmeyer, Andrew J. Bramburger, Donn K. Branstra
Limnology and Oceanography: Methods.2019; 17(1): 42. CrossRef - Ecology of Estuarine Basins of Southern Baikal Small Rivers According to Springtime Chemical and Microbiological Investigation
T. I. Zemskaya, A. S. Zakharenko, I. I. Rusanov, S. V. Bukin, T. V. Pogodaeva, O. G. Netsvetaeva, V. G. Ivanov, Yu. R. Shtykova, N. V. Pimenov
Microbiology.2019; 88(6): 689. CrossRef - Genomes of Novel Microbial Lineages Assembled from the Sub-Ice Waters of Lake Baikal
Pedro J. Cabello-Yeves, Tamara I. Zemskaya, Riccardo Rosselli, Felipe H. Coutinho, Alexandra S. Zakharenko, Vadim V. Blinov, Francisco Rodriguez-Valera, Harold L. Drake
Applied and Environmental Microbiology.2018;[Epub] CrossRef - Ecology under lake ice
Stephanie E. Hampton, Aaron W. E. Galloway, Stephen M. Powers, Ted Ozersky, Kara H. Woo, Ryan D. Batt, Stephanie G. Labou, Catherine M. O'Reilly, Sapna Sharma, Noah R. Lottig, Emily H. Stanley, Rebecca L. North, Jason D. Stockwell, Rita Adrian, Gesa A. We
Ecology Letters.2017; 20(1): 98. CrossRef - Heating up a cold subject: prospects for under-ice plankton research in lakes
S. E. Hampton, M. V. Moore, T. Ozersky, E. H. Stanley, C. M. Polashenski, A. W. E. Galloway
Journal of Plankton Research.2015; 37(2): 277. CrossRef - Freshwater ice as habitat: partitioning of phytoplankton and bacteria between ice and water in central European reservoirs
Robert M.L. McKay, Ondrej Prášil, Libor Pechar, Evelyn Lawrenz, Mark J. Rozmarynowycz, George S. Bullerjahn
Environmental Microbiology Reports.2015; 7(6): 887. CrossRef - Cryophyton of Lake Kalach, Omsk oblast
O. P. Bazhenova, L. V. Korzhova
Contemporary Problems of Ecology.2014; 7(1): 45. CrossRef