ISSN 1067-4136, Russian Journal of Ecology, 2007, Vol. 38, No. 2, pp. 128–130. © Pleiades Publishing, Ltd., 2007. Original Russian Text © O.P. Bazhenova, 2007, published in Ekologiya, 2007, Vol. 38, No. 2, pp. 141–143. SHORT COMMUNICATIONS Phytoplankton Structure and Water Saprobity in the Upper and Middle Irtysh O. P. Bazhenova Omsk State Agrarian University, Institutskaya pl. 2, Omsk, 644008 Russia; e-mail: email@example.com Received October 12, 2005 DOI: 10.1134/S1067413607020117 Key words: phytoplankton, species composition and structure, saprobity, upper and middle Irtysh. The Irtysh is the largest tributary of the Ob. A cas- 1981). Eutrophication of the reservoir began in the late cade of the Bukhtarma, Ust’-Kamenogorsk, and 1970s (Bazhenova, 1980). Since then, new facts con- Shul’ba hydroelectric power plants in its upper reaches cerning structural rearrangement in its phytoplankton considerably affects hydrologic conditions in the river. have been revealed. In particular, 263 species and vari- Studies of phytoplankton as the ﬁrst link of the trophic eties of algae belonging to seven phyla were recorded chain that largely determine the functioning of aquatic (table). ecosystems and the quality of their waters are important Euglenids and yellow-green algae, as well as some for solving the problem of monitoring the ecological chrysophyte
Russian Journal of Ecology – Springer Journals
Published: Mar 20, 2007
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