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Contemporary Problems of Ecology

2013 year, number 1

Quantitative Estimation of the Role of Вithyniidae Snails (Gastropoda: Prosobranchia) in the Ecosystems of the South of West Siberia (Russia)

E. A. SERBINA
Institute of Systematics and Ecology of Animals SB RAS, 630091, Novosibirsk, Frunze str., 11
serbinа@ngs.ru
Keywords: Gastropoda, Вithyniidae snails, abundance, biomass, trematodа, Shannon’s index
Pages: 37-44

Abstract

Results of the investigation of species composition, abundance and biomass of Gastropoda in the ecosystems of the south of West Siberia are presented, for the Karasuk river and Lake Krotovo (Karasuk District of the Novosibirsk Region) as examples. We detected 18 species of 7 families: Lymnаeidae, Planorbidae, Bulinidae, Bithynhdae, Physidae, Succineidae, Zonitidae. The fractions of mollusks of the Вithyniidae family among Gastropoda in the species composition, abundance and biomass were evaluated; their role as the hosts for 20 trematode species of 11 families was revealed. The species diversity of mollusks and trematodes was estimated using the K. Shannon – U. Weaver index.