The diet and growth of larval and juvenile pikeperch (Stizostedion lucioperca (L.)), comparative study of fishponds and a reservoir

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F03%3A00008580" target="_blank" >RIV/60076658:12310/03:00008580 - 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 diet and growth of larval and juvenile pikeperch (Stizostedion lucioperca (L.)), comparative study of fishponds and a reservoir
Original language description
Diet of larval and juvenile pikeperch (Stizostedion lucioperca) reared in ponds was investigated and compared with the diet of pikeperch from a reservoir. The standard length of first feeding pikeperch larvae in ponds was 6.1 mm, on average, and though rotifers were present in the diet, their numerical contribution can be considered as unsubstantial. Rotifers were soon replaced by nauplii of cyclopoid copepods, which were highly positively selected and contributed largely to the diet until the length of10 mm. Daphnia spp. were consumed from the onset of exogenous feeding, but were not positively selected until the length of 15 mm. Another smaller cladoceran Bosmina longirostris was selected highly negatively and did not contribute to the diet significantly. Clear positive selection for larger relatively to smaller prey and preference for Daphnia from a body length of 15 mm onwards could be observed. In the reservoir, rotifers were not found in the diet of pikeperch larvae even in the
Czech name
Strava a růst larev a mladých jedinců druhu Stizostedion lucioperca (L.)
Czech description
Strava a růst larev a mladých jedinců druhu Stizostedion lucioperca (L.)

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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