Journal
INLAND WATER BIOLOGY
Volume 2, Issue 3, Pages 271-275Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1995082909030122
Keywords
crustaceans; rotifers; predatory plants; Utricularia; bladders
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The contents of bladders in the predatory plant Utricularia from three waterbodies were studied. The composition and number of prey depended on the development of zooplankton and phytophilous fauna in the environment. The probability of getting the prey into the bladder was determined by the specificity of the prey's behavior and size. The most numerous prey were predatory Copepoda and nonpredatory Cladocera, which use the bladderwort as a substrate. The shares of other cladocerans in the bladders were inconsiderable when there were high densities of these species in the waterbody. No negative impact of the bladderwort on the rotifer abundance was revealed.
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