Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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ICHTYOCENOSIS COMPOSITION AND STRUCTURE FROM SOME SMALL WATERCOURSES OF THE VOLGA-KAMA BASIN

Andreeva T.V. 1 Аvchadieva I.I. 1
1 Kazan (Volga) Federal University
Lubyanka, Sulitsy, Kaskash and Sulla. Listed species composition of fish, their abundance, highlights the most numerous and scarce species in studied reservoirs. Measure of the total diversity of Shannon and Weaver were used in the analysis for creation results. Serensona similarity score, used for comparison, the species composition of fish fauna of the studied reservoirs which showed that the similarity of the species composition of fish in ponds are not significant. During investigation established, that the basis of ichthyofauna in all rivers consists of two faunal complex - the boreal plains and Ponto-Caspian freshwater. Ichtyocenosis ecological structure on the type of power supply, the timing of spawning and use of the spawning substrate was considered. It is shown, that in the ecological structure of the fish community in studied rivers is dominated by the type of food