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Název:
The diet of larval and juvenile pikeperch (.i.Stizostedion lucioperca./i.)(L.)), comparative study of fishponds and a reservoir
Autoři: Peterka, Jiří ; Matěna, Josef ; Lipka, J.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Pond Aquaculture in Central and Eastern Europe in the 21st Century. How can research provide the scientific, ecological and economic bases for sustainable aquaculture?, Vodňany (CZ), 2001-05-02 / 2001-05-04
Rok: 2002
Jazyk: eng
Abstrakt: Diet of larval and juvenile pikeperch (.i.S. lucioperca./i.) reared in ponds was investigated and compared with the diet of pikeperch from a reservoir. Numbers of rotifers were found low in the diet of pikeperch larvae in fishponds and they were soonreplaced by nauplii of cyclopoid copepods. .i.Daphnia./i. spp. were consumed from the onset of exogenous feeding. Another smaller cladoceran .i.Bosmina./i. longirostris did not contribute to the diet significantly. In the reservoir, rotifers were not found in the diet of pikeperch larvae. Dominant food items were nauplii and 1st copepodite instar of .i.Eudiaptomus gracilis./i. and .i.Cyclops./i. spp. .i.Daphnia galeata./i. and to a lesser extent .i.Diaphanosoma brachyurum./i. appeared in the pikeperch diet at a length of about 10 mm. A shift towards larger prey, especially .i.Leptodora kindtii./i., could be recognised in pikeperch at a length of 20 mm. Growth of pikeperch was found faster in nursing ponds than in the reservoir.
Klíčová slova: růst; diet composition; food selection; growth
Číslo projektu: CEZ:AV0Z6017912 (CEP)
Zdrojový dokument: Pond Aquaculture in Central and Eastern Europe in the 21st Century, How can research provide the scientific, ecological and economic bases for sustainable aquaculture?
Instituce: Hydrobiologický ústav AV ČR - od r. 2006 součást Biologického centra (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0047994
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-22976
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Hydrobiologický ústav
Konferenční materiály > Příspěvky z konference
Autoři: Peterka, Jiří ; Matěna, Josef ; Lipka, J.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Pond Aquaculture in Central and Eastern Europe in the 21st Century. How can research provide the scientific, ecological and economic bases for sustainable aquaculture?, Vodňany (CZ), 2001-05-02 / 2001-05-04
Rok: 2002
Jazyk: eng
Abstrakt: Diet of larval and juvenile pikeperch (.i.S. lucioperca./i.) reared in ponds was investigated and compared with the diet of pikeperch from a reservoir. Numbers of rotifers were found low in the diet of pikeperch larvae in fishponds and they were soonreplaced by nauplii of cyclopoid copepods. .i.Daphnia./i. spp. were consumed from the onset of exogenous feeding. Another smaller cladoceran .i.Bosmina./i. longirostris did not contribute to the diet significantly. In the reservoir, rotifers were not found in the diet of pikeperch larvae. Dominant food items were nauplii and 1st copepodite instar of .i.Eudiaptomus gracilis./i. and .i.Cyclops./i. spp. .i.Daphnia galeata./i. and to a lesser extent .i.Diaphanosoma brachyurum./i. appeared in the pikeperch diet at a length of about 10 mm. A shift towards larger prey, especially .i.Leptodora kindtii./i., could be recognised in pikeperch at a length of 20 mm. Growth of pikeperch was found faster in nursing ponds than in the reservoir.
Klíčová slova: růst; diet composition; food selection; growth
Číslo projektu: CEZ:AV0Z6017912 (CEP)
Zdrojový dokument: Pond Aquaculture in Central and Eastern Europe in the 21st Century, How can research provide the scientific, ecological and economic bases for sustainable aquaculture?
Instituce: Hydrobiologický ústav AV ČR - od r. 2006 součást Biologického centra (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0047994
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-22976
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Hydrobiologický ústav
Konferenční materiály > Příspěvky z konference
Záznam vytvořen dne 2011-07-01, naposledy upraven 2021-11-24.