Feeding activity of pikeperch (Sander lucioperca) under winter and spring photothermal conditions of pre-spawning period
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F20%3A43900810" target="_blank" >RIV/60076658:12520/20:43900810 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/are.14401" target="_blank" >https://doi.org/10.1111/are.14401</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/are.14401" target="_blank" >10.1111/are.14401</a>
Alternative languages
Result language
angličtina
Original language name
Feeding activity of pikeperch (Sander lucioperca) under winter and spring photothermal conditions of pre-spawning period
Original language description
This study investigated foraging behavior of pikeperch (Sander lucioperca) broodstock specifically the effect of predator’s sex, prey size preference and water temperature on feeding activity. The experimental design consisted of three temperature trials: 4.5 °C, 8.5 °C and 12.5 °C of 12 days duration and 7 days in between for adaptation and gradual change of photo-thermal regime. Prey size range included large (PPR = 0.18; predator-prey ratio), medium (PPR = 0.13), and small (PPR = 0.11) fish. The consumption of prey fish (Pseudorasbora parva) significantly increased with water temperature rise from 4.5°C to 8.5 °C. Female consumption rates were higher throughout the experiment and responded faster to increased water temperature in comparison to males. The highest relative daily consumption rate was observed at 12.5 °C with females consuming 19.7 ± 6.09 g of prey and males consuming 15.8 ± 4.7 g of prey per kilogram of their body weight. Preference for the largest available prey (PPR = 0.18) became significant at water temperatures of 8.5 °C and 12.5 °C for males and females respectively. These result will improve our understanding of winter and pre-spawning predatory behavior of pikeperch, contributing to broodstock management and increasing control during pond-culture.
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
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>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Aquaculture Research
ISSN
1355-557X
e-ISSN
1365-2109
Volume of the periodical
51
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
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UT code for WoS article
000497466000001
EID of the result in the Scopus database
2-s2.0-85075397797