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Hydrobiological Journal
SJR: 0.217 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v49.i4.60
pages 64-74

Feeding and Trophic Relations of the European Grayling and Brown Trout in Rivers of Transcarpathian Region

S. V. Kruzhilina
Institute of Fishery, Ukrainian Academy of Agrarian Sciences, Kyiv, Ukraine
O. V. Didenko
Institute of Fishery, Ukrainian Academy of Agrarian Sciences, Kyiv, Ukraine
I. Y. Velykopolskiy
Institute of Fishery Kiev (Kyiv), Ukraine
A. I. Mruk
Institute of Fishery, Ukrainian Academy of Agrarian Sciences, Kyiv, Ukraine

RÉSUMÉ

The article deals with food spectra and trophic relations between the brown trout (Salmo trutta morpha fario L.) and European grayling (Thymallus thymallus L.) in rivers of the Transcarpathian region. Strained trophic relationships between studied fishes are possible due to significant overlap of the feeding spectra over summer and autumn because of low biomass of zoobenthos in the studied rivers.