Food competition between 2+ tench (Tinca tinca), comon carp (Cyprinus carpio L.) and bigmouth buffalo (Ictiobus cyprinellus Val) in pond culture

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F03%3A00005724" target="_blank" >RIV/60076658:12610/03:00005724 - 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

Food competition between 2+ tench (Tinca tinca), comon carp (Cyprinus carpio L.) and bigmouth buffalo (Ictiobus cyprinellus Val) in pond culture

Original language description

Natural diets of tench (Tinca tinca L.), carp (Cyprinus carpio L.) and bigmouth buffalo (Ictiobus cyprinellus Val.) were studied to determine food competition among them in polyculture stocks of two different densities. Tench diet consisted mainly of zooplankton (43.8%) and bottom sediments (21.2%). In contrast, carp diet consisted mainly of bottom items including plant debris and detritus (68.8%), which dominated over zooplankton (19.1%). In bigmouth buffalo, most food bulk comprised zooplankton (80.7%). Thus, the resulting food competition (i.e. similarity) was most pronounced between tench and carp (60.8%) and between tench and bigmouth buffalo (47.4%). When comparing growth performance of the three cultured species, the ratios between stocking andharvesting size were: in normal stocking density (392 kg ha 1) 1.72, 3.67 and 2.13, and in doubled stocking density (777 kg ha 1) 1.07, 2.33 and 2.16 in tench, carp and bigmouth buffalo, respectively.

Czech name

Potravní komkurence mezi násadou lína obecného (Tinca tinca), kapra obecného (Cyprinus carpio L.)a bufala velkoústého (Ictiobus cyprinellus Val) v rybniční polykultuře.

Czech description

Byla studována přirozená potrava lína obecného (Tinca tinca L.), kapra obecného (Cyprinus carpio L.) a bufala velkoústého (Ictiobus cyprinellus Val.) pro stanovení potravní konkurence mezi nimi při polykulturním odchovu ve dvou hustotách obsádek. Potravalína obsahovala převážně zooplankton (43,8%), sediment (21,2%). U kapra dominovala složka dna včetně rostlin a detritu (68,8%) nad zooplanktonem (19,1%). U bufala převažoval zooplankton (80,7%).

Type

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

CEP classification

GL - Fishery

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Journal of Applied Ichthyology

ISSN

0175-8659

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

165-169

UT code for WoS article

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EID of the result in the Scopus database

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