To the Question on Spatial Differences of Cyprinoid Populations in Chany Lake (Western Siberia). Peculiarities of Variability of Osteometric Features of Ide Leuciscus idus and Roach Rutilus rutilus (Cyprinidae Family) from River and Lake Systems
E. N. YADRENKINA, E. A. INTERESOVA, A. V. YADRENKIN, R. M. KHAKIMOV
Abstract
There was realize a comparison of river and lake groups of ide Leuciscus idus and roach Rutilus rutilus in Chany Lake basin by applying the complex of osteometric parameters. Statistically significant differences were found between fish groups in the frequency of some phenetics characteristics of axial skeleton and pharyngeal teeth. The lacustrine group of ide is marked by rare phenes of pharyngeal teeth formulas "2.5-.2" and "3.5-5.4" (these variants have not been register in samples from the lake areas) and some phenes of axial skeleton. The river's and lacustrine groups of roach differ by pharyngeal teeth formula and the number of vertebras of trunk and caudal parts of the spine. There are discussed the questions of spatial organization of populations.
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