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| 1 | Vertical stratification of physical, chemical and biological components in two saline lakes Shira and Shunet (South Siberia, Russia)显示文摘 | Andrey G. Degermendzhy Egor S. Zadereev Denis Yu. Rogozin Igor G. Prokopkin Yuri V. Barkhatov Alexander P. Tolomeev Elena B. Khromechek Jan H. Janse Wolf M. Mooij Ramesh D. Gulati | 2010 | Aquatic Ecology2010，，3： | 2 |
| 2 | Grazing rate and feeding selectivity of small and large bodied cladocerans in waters from lakes with different salinity and phytoplankton structure显示文摘Cladocera are filter feeders abundant in freshwaters,which consume phytoplankton particles in wide size and taxonomic ranges.The ability of cladocerans to control phytoplankton abundance by grazing is determined by various factors including the characteristics of phytoplankton.Freshwater salinization may reduce the strength of top-down grazing control of phytoplankton because of the detrimental effects of salinity on the grazing intensity of zooplankters.We performed grazing experiments with two species of Cladocera of different body lengths to test their ability to graze on phytoplankton in natural waters differing in salinity and size and taxonomic composition of food particles.Grazing experiments demonstrated that the grazing rate was mostly controlled by the abundance of phytoplankton in the medium.The grazing rate was reduced at salinity ca.above 3 g/L of NaCl in the medium.The lower grazing rate was observed in the medium with larger phytoplankton particles.Both species predominantly consumed phytoplankton particles with a diameter of 6-12μm,which may shift the size distribution of phytoplankton towards a larger average diameter of particles.The taxon-specific feeding was also observed,as both species predominantly consumed diatom algae.Thus,we found that because of grazing,the size and taxonomic characteristics of phytoplankton are shifted towards a less edible community.The detrimental effect of elevated salinity on grazing rate supports growing concern about freshwater salinization negatively affecting water quality,particularly reducing top-down grazing control of phytoplankton. | Egor ZADEREEV Tatiana LOPATINA Svyatoslav OVCHINNIKOV Alexander TOLOMEEV | 2023 | Journal of Oceanology and Limnology2023，41，4： | 0 |
| 3 | Spatial and Seasonal Dynamics of Dissolved and Suspended Nutrients in the Water Column of Meromictic Lake Shira显示文摘1 Introduction The vertical stratification of the water column has a significant impact on the spatial distribution of aquatic organisms,the dynamics and structure of the food web | Egor ZADEREEV Alexander TOLOMEEV Anton DROBOTOV | 2014 | Acta Geologica Sinica(English Edition)2014，88，S1： | 0 |
| 4 | Cryptophyta Flagellates of Meromictic Lakes Shira and Shunet(Khakassia,Russia):Mechanisms of Vertical Distribution and Trophic Role显示文摘1 Introduction Many of the stratified lakes are characterized by the presence of large populations of cryptomonads in their chemocline zones(Reynolds,1992;Gervais et al,2003;Pedro’s-Alio’et al.,1995).These populations are adapted to low light intensity and high sulfide concentration;they have a mixotrophic ability and form the so-called'deep chlorophyll maxima'(Gervais,1998;Marsha'and Laybourn-Parry,2002).A similar Cryptomonas sp. | Yuri BARKHATOV Elena KHROMECHEK Alexander TOLOMEEV Igor PROKOPKIN | 2014 | Acta Geologica Sinica(English Edition)2014，88，S1： | 0 |
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