Abstract
A stratification site was detected according to the water conductivity in the frontal zone of the mouth part of the tributary of a plains reservoir. The “second bottom” effect is shown to occur in the lower, denser layer of river waters, where the zooplankton, whose structural and functional characteristics differ from those in overlying and underlying water layers, live. The growth of bacterioplankton is controlled by the zooplankton. The “second bottom” effect is disrupted under an oxygen deficiency caused by abnormally high water temperatures.
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Andronikova, I.N., Strukturno-funktsional’naya organizatsiya zooplanktona ozernykh ekosistem raznykh troficheskikh tipov (Structural–Finctional Organization of Zooplankton in Lake Ecosystems of Different Trophic Types), St. Petersburg: Nauka, 1996.
Beznosov, V.N., Kuchkina, M.A., and Suzdaleva, A.L., Analysis of thermal eutrophication in cooling reservoirs of nuclear power plants, Vodn. Resursy, 2002, Vol. 29, No. 5, pp. 610–615.
Bolotov, S.E., Tsvetkov, A.I., and Krylov, A.V., Hydrological and biological characteristics of zones in the estuarine segmens of a Rybinsk Reservoir tributary, in Bassein Volgi v XXI veke: struktura i funktsionirovanie ekosistem vodokhranilishch: materialy Vseros. konf. (The Volga Basin in the 21st Century: Structure and Functioning of Reservoir Ecosystems, Proc. All-Union Conf.), Izhevsk: Permyakov S.A., 2012, pp. 22–26.
Doklad ob osobennostyakh klimata na territorii Rossiiskoi Federatsii za 2011 god (Report on Specific Features of Climate on the Territory of the Russian Federation in 2011). http://meteoinforu/media/climate/rus-clim-2011pdf. Accessed December 25, 2012.
Edel’shtein, K.K., Vodnye massy dolinnykh vodokhranilishch (Water Masses in Valley Reservoirs), Moscow: Mosk. Gos. Univ., 1991.
Krylov, A.V. and Bobrov, A.A., Ekosistema maloi reki v izmenyayushchikhsya usloviyakh sredy (A Small River Ecosystem under Changing Environmental Conditions), Moscow: KMK, 2007.
Frenkel, Ya.I., Kineticheskaya teoriya zhidkostei (Kinetic Theory of Liquids), Leningrad: Nauka, 1975.
Gidrobiologicheskii rezhim malykh rek v usloviyakh antropogennogo vozdeistviya (The Hydrological Regime of Small Rivers under Anthropogenic Impact), Riga: Zinatne, 1981.
Kopylov, A.I., Lazareva, V.I., Mineeva, N.M., Maslennikova, T.S., and Stroinov, Ya.V., Influence of anomalous high water temperatures on the development of the plankton community in the Middle Volga reservoirs in summer 2010, Dokl. Biol. Sci., 2012, Vol. 442, pp. 11–13.
Krylov, A.V., Tsvetkov, A.I., and Malin, M.I., Vertical distribution of zooplankton in a small river, Povolzh. Ekol. Zh., 2009, No. 1, pp. 47–53.
Krylov, A.V., Tsvetkov, A.I., Malin, M.I., Romanenko, A.V., Poddubnyi, S.A., and Otyukova, N.G., Hydrobiont communities and physicochemical parameters in the estuarine segment of a plane reservoir tributary, Biol. Vnutr. Vod, 2010, No. 1, pp. 65–75.
Kuznetsov, S.I., Mikroflora ozer i ee geokhimicheskaya deyatel’nost’ (The Microflora of Lakes and Its Geochemical Activities), Leningrad: Nauka, 1970.
Modukhai-Boltovskoi, F.D., Metodika izucheniya biogeotsenozov vnutrennikh vodoemov (Methods of Studies on Biogeocenoses of Inland Water Bodies), Moscow: Nauka, 1975.
Mikhailov, V.N., Gidrologicheskie protsessy v ust’yakh rek (Hydrological Processes in River Estuaries), Moscow: GEOS, 1997.
Oksiyuk, O.P., Zhukinskii, V.N., Braginskii, L.P., Linnik, P.N., Kuz’menko, M.I., and Klenus, V.G., Integrated ecological classification of land surface water quality, Gidrobiol. Zh., 1993, Vol. 29, No. 4, pp. 62–76.
Porter, K.G. and Feig, Y.S., The use of DAPI for identifying and counting aquatic microflora, Limnol. Oceanogr., 1980, Vol. 25, No. 5, pp. 943–948.
Rokhmistrov, V.L., Hydrological characteristics of the Solonitsa River in the backwater zone, Biol. Vnutr. Vod: Inform. Byull., Leningrad: Nauka, 1973, No. 23, pp. 57–59.
Kuzin, B.S., Rybinskoe vodokhranilishche (The Rybinsk Reservoir), Leningrad: Nauka, 1972.
Simon, M., Grossart, H.-P., Schweitzer, B., and Ploug, H., Microbial ecology of organic aggregates in aquatic ecosystems, Aquat. Microb. Ecol., 2002, Vol. 28, pp. 175–211.
Sirenko, L.A., Eutrophication of continental water bodies and some problems in its control, in Nauchnye osnovy kontrolya kachestva vod po gidrobiologicheskim pokazatelyam (Scientific Bases of Water Quality Control by Hydrobiological Parameters), Leningrad: Gidrometeoizdat, 1981, pp. 137–153.
Verigin, B.V., On the phenomenon of thermal eutrophication of water bodies, Gidrobiol. Zh., 1977, Vol. 13, No. 5, pp. 98–105.
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Original Russian Text © S.E. Bolotov, A.V. Romanenko, A.I. Tsvetkov, A.V. Krylov, 2014, published in Povolzhskii Ekologicheskii Zhurnal, 2014, No. 3, pp. 304–310.
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Bolotov, S.E., Romanenko, A.V., Tsvetkov, A.I. et al. Disruption of the vertical distribution of plankton in the tributary mouth of a plains reservoir in the summer period of a hot year. Biol Bull Russ Acad Sci 42, 870–874 (2015). https://doi.org/10.1134/S1062359015100039
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DOI: https://doi.org/10.1134/S1062359015100039