Original title: Ecology of top fish predators, European catfish and asp, with consequences to fish communities
Authors: ŠMEJKAL, Marek
Document type: Doctoral theses
Year: 2017
Language: eng
Abstract: The dissertation thesis focuses on predator ecology in artificial water bodies. Paper I deals with the importance of chemical cues for predator-prey interactions in an aquatic environment. Here, I demonstrate that the ability to detect chemical cues represents a survival benefit for prey species. Paper II points out gillnet methodological bias, which may have subsequent repercussions in field evaluation of a predator's presence and assessment of larger fish abundance in general. Papers III and IV focus on asp Leuciscus aspius spawning grounds. In Paper III, I demonstrate how males maximize their spawning chances by early arrival and in Paper IV, I evaluate the predation pressure of asp prey, Alburnus alburnus, directed on asp eggs.
Keywords: asp; bleak; chemical cues; European catfish; predator-prey reversal; protandry
Citation: ŠMEJKAL, Marek. Ecology of top fish predators, European catfish and asp, with consequences to fish communities. České Budějovice, 2017. disertační práce (Ph.D.). JIHOČESKÁ UNIVERZITA V ČESKÝCH BUDĚJOVICÍCH. Přírodovědecká fakulta

Institution: University of South Bohemia in České Budějovice (web)
Document availability information: Fulltext is available in the Digital Repository of University of South Bohemia.
Original record: http://www.jcu.cz/vskp/33967

Permalink: http://www.nusl.cz/ntk/nusl-364706


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Universities and colleges > Public universities > University of South Bohemia in České Budějovice
Academic theses (ETDs) > Doctoral theses