Strava a růst larev a mladých jedinců druhu Stizostedion lucioperca (L.)

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Aquaculture International

ISSN

0967-6120

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

337-348

Kód UT WoS článku

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EID výsledku v databázi Scopus

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