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Kiev, Ukraine

Novitskiy R.A.,Dnipropetrovsk National University | Khrystenko D.S.,Institute of Fishery | Kotovskaya A.A.,Institute of Fishery
Hydrobiological Journal | Year: 2015

Peculiarities of morphotype changes in Pseudorasbora parva, one of the most successful invaders of the Central and Eastern Europe, were analyzed. In P. parva several morpho-ecological groups were revealed, conditioned by different habitat conditions. At the level of plastic characteristics differences were noted in ontogenetic programs in lotic and lentic water bodies. Directivity of morphological changes is closely connected with peculiarities of swimming activity and confidently indicates process of successive adaptation of the invader to new habitat conditions. Two development programs were established - in the rivers - Psel, Ros', Danube, Dniester, Dnieper and Amur, and in the reservoirs - Kremenchug, Beliakove and Kleban-Byk. They were proposed to be named as "riverine" and "lañustrine" programs, which provide better adaptation to different habitat conditions. © 2015 Begell House, Inc.

Adamovich B.V.,Institute of Fishery | Adamovich B.V.,Belarusian National Technical University | Zhukova A.A.,Belarusian National Technical University
Hydrobiological Journal | Year: 2014

Relationship between phytoplankton characteristics (biomass, taxonomic structure, and dimensional composition) and chlorophyll a content in fish ponds of the "Vileyka" fish farm and in adjacent watercourses, including the Smerdiya and Viliya rivers, is analyzed in the paper. © 2014 Begell House, Inc.

Kruzhylina S.V.,Institute of Fishery | Didenko O.V.,Institute of Fishery | Velykopolskiy I.Y.,Institute of Fishery | Mruk A.I.,Institute of Fishery
Hydrobiological Journal | Year: 2013

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. © 2013 Begell House, Inc.

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