About: Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness

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About: Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Feeding selectivity and efficiency of young-of-the-year European perch and roach were compared under field and laboratory conditions. In laboratory experiments, the importance of prey evasiveness versus prey movement conspicuousness for fish selectivity was evaluated with respect to changing Cladocera/Copepoda prey ratio. Feeding efficiency was additionally investigated in relation to feeding time and prey density. Differences in feeding selectivity and efficiency between perch and roach juveniles were found to be significant both in the field and laboratory experiments. In roach, selectivity was determined solely by prey evasiveness. By contrast, perch’s selectivity was influenced by prey movement conspicuousness; prey escape abilities did not play an important role. Perch were more efficient foragers on evasive prey, but its feeding efficiency for non-evasive prey was not lower than that of roach. Feeding selectivity and efficiency of young-of-the-year European perch and roach were compared under field and laboratory conditions. In laboratory experiments, the importance of prey evasiveness versus prey movement conspicuousness for fish selectivity was evaluated with respect to changing Cladocera/Copepoda prey ratio. Feeding efficiency was additionally investigated in relation to feeding time and prey density. Differences in feeding selectivity and efficiency between perch and roach juveniles were found to be significant both in the field and laboratory experiments. In roach, selectivity was determined solely by prey evasiveness. By contrast, perch’s selectivity was influenced by prey movement conspicuousness; prey escape abilities did not play an important role. Perch were more efficient foragers on evasive prey, but its feeding efficiency for non-evasive prey was not lower than that of roach. (en)
Title	Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness (en)
skos:prefLabel	Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness (en)
skos:notation	RIV/60077344:_____/09:00328080!RIV10-AV0-60077344
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(IAA600170502), P(KJB600960810), V, Z(AV0Z60170517)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Matěna, Josef Peterka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	310457
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/09:00328080
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	juvenile fish; foraging ecology; Daphnia; Cyclopidae; Diaptomidae; movement pattern apparency (en)
http://linked.open.../riv/klicoveSlovo	foraging ecology Daphnia juvenile fish Cyclopidae Diaptomidae movement pattern apparency
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[42A34B1ACE3A]
http://linked.open...i/riv/nazevZdroje	Biologia
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Sinusoidal foraging and the role of fish in resorvoirs Effect of food quantity and quality on the reverse in competitive success between 0+ perch and roach
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	64
http://linked.open...iv/tvurceVysledku	Peterka, Jiří Matěna, Josef
http://linked.open...ain/vavai/riv/wos	000268190600025
http://linked.open...n/vavai/riv/zamer	Struktura, funkce a vývoj vodních ekosystémů
issn	0006-3088
number of pages	9 (xsd:int)

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