Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902541" target="_blank" >RIV/60076658:12520/21:43902541 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10499-021-00682-w" target="_blank" >https://doi.org/10.1007/s10499-021-00682-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10499-021-00682-w" target="_blank" >10.1007/s10499-021-00682-w</a>
Alternative languages
Result language
angličtina
Original language name
Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus)
Original language description
The chub, Squalius cephalus (L.), is an important stocking fish in European rivers. This study investigates sustainable measures for culturing chub in earthen ponds. Two novel treatments were applied to enhance utilisation of natural pond food resources: yellow plates used as insect attractants (YIT) and plant biomass supplementation (PB) as a substrate supporting the development of natural food organisms. While no significant differences were recorded for most environmental variables, average macrozoobenthos biomass was significantly higher (p < 0.05) in the control (61.51 g.m(-2)) compared with PB (29.3 g.m(-2)) and YIT (36.8 g.m(-2)). However, fish from YIT ponds had significantly higher (p < 0.05) mean body weight gain (34.7 g) and SGR (1.60 g.day(-1)) compared to the PB (28.65 g and 1.50 g.day(-1)) or control (25.64g and 1.43 g.day(-1)) ponds. Diet analysis indicated a higher amount of animal food (mainly zooplankton, zoobenthos, terrestrial insects and fish) in YIT and PB treatments, while a higher amount of plant (mainly macrophytes) and emergency food (detritus) was observed in the control ponds. Differences in diet were reflected in the fatty acid profile of fish from different treatments, with YIT fish having significantly (p < 0.05) higher n-3 PUFA, n-3 HUFA and n-3/n-6 ratio, compared to PB fish and controls. Our results confirm that YIT use in pond aquaculture significantly enhances the role of natural food resources in the diet of cultured chub, thereby contributing to its sustainable production.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
<a href="/en/project/EE2.3.30.0006" target="_blank" >EE2.3.30.0006: The Creation of Postdoc Positions at the University of South Bohemia and the Support of Itnersectoral Mobility by Expert Stays at the Foreign Leading R&D Institutions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Aquaculture International
ISSN
0967-6120
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
19
Pages from-to
"1161–1179"
UT code for WoS article
000627661700001
EID of the result in the Scopus database
2-s2.0-85102496635