Počet záznamů: 1
Differences in feeding selectivity and efficiency between young-of-the-year European perch (.i.Perca fluviatilis./i.) and roach (.i.Rutilus rutilus./i.) – field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness
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SYSNO ASEP 0328080 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název 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 Překlad názvu Rozdíly v potravní selektivitě a efektivitě mezi tohoročním okounem říčním (Perca fluviatilis) a ploticí obecnou (Rutilus rutilus) – terénní pozorování a laboratorní experimenty zohledňující významnost nápadnosti pohybu vs. únikovosti kořisti Tvůrce(i) Peterka, Jiří (BC-A) RID, ORCID
Matěna, Josef (BC-A) RIDZdroj.dok. Biologia. - : Springer - ISSN 0006-3088
Roč. 64, č. 4 (2009), s. 786-794Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova juvenile fish ; foraging ecology ; Daphnia ; Cyclopidae ; Diaptomidae ; movement pattern apparency Vědní obor RIV EH - Ekologie - společenstva CEP IAA600170502 GA AV ČR - Akademie věd KJB600960810 GA AV ČR - Akademie věd CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000268190600025 DOI 10.2478/s11756-009-0133-4 Anotace 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. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2010
Počet záznamů: 1