E. I. Zuikova and N. A. Bochkarev
Institute of Systematics and Ecology of Animals, Siberian Branch of the Russian Academy of Sciences,
ul. Frunze 11, Novosibirsk, 630091 Russia
Received May 31, 2007
Abstract—The zooplankton structure of large lakes (Noyon-Khol’, Shuram-Khol’, Borzu-Khol’, Many-Khol’,
Kadysh, and Todzha) of the Todzha Depression has been studied. A comparison of the species composition,
abundance, and biomass of zooplankton in the lakes was made. Rotifers have the largest species diversity: from
10 to 16 species, with Conochilus sp., Collotheca sp., Kellicottia longispina (Kellicott), and Asplanchna pri-
odonta Gosse being the most abundant. Copepods are represented mostly by Arctodiaptomus paulseni (Sars),
Eudiaptomus graciloides (Lilljeborg), Cyclops scutifer Sars, and Mesocyclops leuckarti Claus. Daphnia gale-
ata Sars and Bosmina longispina Leydig are the dominant cladoceran species. It is shown that the zooplankton
communities of the lakes in the Todzha Depression are characterized by a high degree of species composition
similarity. Factors forming the taxonomic structure of pelagic zooplankton in the system of these lakes are dis-
played.
DOI:10.1134/S1995082909010088
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