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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F09%3A00328080" target="_blank" >RIV/60077344:_____/09:00328080 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/09:00010504

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language 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 selectivitywas 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 werefound 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 animportant role. Perch were more efficient foragers on evasive prey, but its feeding efficiency for non-evasive prey was not lower than that of roach.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biologia

ISSN

0006-3088

e-ISSN

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Volume of the periodical

64

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

9

Pages from-to

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UT code for WoS article

000268190600025

EID of the result in the Scopus database

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