Comparison of diet in native and non-native fish species in oxbows of bodrog and Latorica rivers

Branislav Hrabkovsý , Ján Koščo , Michał Nowak

Abstract

According to many studies dealing with invasions of organisms, non-native animal species are considered one of the causes of the natural communities and ecosystems disturbance. Thanks to their tolerance to various adverse effects of environmment and low requirements for environment resources, they are becoming a serious threat for native species. Invasion of a non-native species in any type of ecosystem can resultin changes on different levels. At the level of individuals, presence of a non-native species affects behaviour and morphology. At the population level, invasions result in demographic and distributional changes. Consequently, trough these changes invaders modify community composition and thus alter existing food webs, which can eventually bring about changes at ecosystem level (e.g. changes in biochemical cycles). Up to the present day, ten non-native fish species were described in waters of Slovakia. The objective of this paper is to compare feeding preferences in native and invasive fish species in oxbows of Bodrog and Latorica Rivers, namely pumpkinseed sunfish (Lempomis gibbosus, L.) and European perch (Perca fluviatilis, L.)
Author Branislav Hrabkovsý
Branislav Hrabkovsý,,
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, Ján Koščo
Ján Koščo,,
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, Michał Nowak (DoAS / DoIaF)
Michał Nowak,,
- Department of Ichthyobiology and Fisheries
Journal seriesActa facultatis studiorum humanitatis et naturae Universitatis Prešoviensis, ISSN 1336-6149, (0 pkt)
Issue year2013
No42
Pages23-29
Publication size in sheets0.5
Keywords in Englishnative species, invasive species, diet composition, oxbows, bodrog, latorica
Internal identifierWHiBZ/2013/61
Languageen angielski
Score (nominal)0
ScoreMinisterial score = 0.0, 26-07-2017, ArticleFromJournal
Ministerial score (2013-2016) = 0.0, 26-07-2017, ArticleFromJournal
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