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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F09%3A00328080%21RIV10-AV0-60077344
rdf:type
n9:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/60077344:_____/09:00328080!RIV10-AV0-60077344
n3:aktivita
n10:V n10:Z n10:P
n3:aktivity
P(IAA600170502), P(KJB600960810), V, Z(AV0Z60170517)
n3:cisloPeriodika
4
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n12:8073473 n12:7942281
n3:druhVysledku
n18:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
310457
n3:idVysledku
RIV/60077344:_____/09:00328080
n3:jazykVysledku
n4:eng
n3:klicovaSlova
juvenile fish; foraging ecology; Daphnia; Cyclopidae; Diaptomidae; movement pattern apparency
n3:klicoveSlovo
n6:foraging%20ecology n6:Cyclopidae n6:juvenile%20fish n6:Daphnia n6:movement%20pattern%20apparency n6:Diaptomidae
n3:kodStatuVydavatele
SK - Slovenská republika
n3:kontrolniKodProRIV
[42A34B1ACE3A]
n3:nazevZdroje
Biologia
n3:obor
n15:EH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n7:IAA600170502 n7:KJB600960810
n3:rokUplatneniVysledku
n11:2009
n3:svazekPeriodika
64
n3:tvurceVysledku
Peterka, Jiří Matěna, Josef
n3:wos
000268190600025
n3:zamer
n8:AV0Z60170517
s:issn
0006-3088
s:numberOfPages
9