The role of supplementary feeding in food competition between common carp (Cyprinus carpio) and perch (Perca fluviatilis) in a pond culture

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F01%3A00003166" target="_blank" >RIV/60076658:12610/01:00003166 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The role of supplementary feeding in food competition between common carp (Cyprinus carpio) and perch (Perca fluviatilis) in a pond culture

Original language description

Food composition, selectivity and competition between carp (Cyprinus carpio) and perch (Perca fluviatilis) were studied under conditions of pond farming technology with the application of wheat as a supplementary feed. Carp preferred feed wheat, which composed 52.7 - 65.7 % of food ingested. Positive selectivity was proved for copepods and chironomid larvae, whilst avoidance appeared for bioseston, rotifers, Bosmina longirostris, Daphnia galeata and many benthic invertebrates except above mentioned chironomids (Helobdella stagnalis, Hydracarina, Caenis robusta, Mystacides and Ceratopogonidae). Perch showed predatory (cannibalistic) feeding pattern with 83.9 - 92.6 % portion of small fish in the food bulk. Perch did not consume smallest food particles like bioseston and rotifers. Negative selectivity was proved also for copepods and small benthic animals like water mites and larvae of Caenis robusta, Mystacides, Chironomidae and Ceratopogonidae. On the other hand, bigger invertebrates (

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

GL - Fishery

OECD FORD branch

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Project

<a href="/en/project/EP9392" target="_blank" >EP9392: Production technologies of marketable perch</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2001

Confidentiality

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

Name of the periodical

Krmiva

ISSN

0023-4850

e-ISSN

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Volume of the periodical

42

Issue of the periodical within the volume

2

Country of publishing house

HR - CROATIA

Number of pages

10

Pages from-to

175-184

UT code for WoS article

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EID of the result in the Scopus database

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