Chemical composition characteristics of water and phytoplankton development in Lake Zavernyaikha |
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| Authors: | G I Popovskaya L M Sorokovnikova I V Tomberg N V Bashenkhaeva N A Tashlykova |
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| Institution: | 1.Limnological Institute, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia;2.Institute of Natural Resources, Ecology and Cryology, Siberian Branch,Russian Academy of Sciences,Chita,Russia |
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| Abstract: | Based on long-term observations, we examine the seasonal and interannual dynamics of the phytoplankton and chemical composition
of the water in Lake Zavernyaikha located in the delta of the Selenga river. The study revealed an intense development of
five kinds of phytoplankton under the ice, dominated by dynophytes: Baikal’s endemics G. baicalense and P. baicalense. The main factors for massive algae development under the ice are: the favorable gaseous regime and relationship of nutrients,
high content of readily hydrolizable organic matter (RHOM), isolatedness of the water body, and high division rate of dinophytes. |
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