Potenciál piscivorie 0+ okouna říčního (Perca fluviatilis L.) - laboratorní studium růstu versus rybniční experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F06%3A00006958" target="_blank" >RIV/60076658:12610/06:00006958 - 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

Potential of piscivory in 0+ perch (Perca fluviatilis L.) - a laboratory study of growth response versus the whole pond experiment

Popis výsledku v původním jazyce

Zooplankton and macroinvertebrates are the main food sources of perch in their first year of life, although older perch may switch to piscivory. However, piscivorous 0+ perch have been also found in a variety of water bodies. Growth of 0+ fish increasessignificanly when fish switch from feeding on zooplankton or benthic invertebrates to piscivory. Fish growth is dependent on temperature, food level (including prey type, prey size and its density), and extent of competitive interactions and cannibalism.The growth of fish in their first year of life is an important factor regulating competetive interactions within fish communities and the recruitment of adults. It may affect the structure and dynamics of fish communities with implications for lake food-web structure. In order to understand this early piscivory of 0+ perch, a laboratory study of its growth response was evaluated to answer how different feeding level (zooplanktonic versus fish preys) and predator density may affect growt

Název v anglickém jazyce

Potential of piscivory in 0+ perch (Perca fluviatilis L.) - a laboratory study of growth response versus the whole pond experiment

Popis výsledku anglicky

Zooplankton and macroinvertebrates are the main food sources of perch in their first year of life, although older perch may switch to piscivory. However, piscivorous 0+ perch have been also found in a variety of water bodies. Growth of 0+ fish increasessignificanly when fish switch from feeding on zooplankton or benthic invertebrates to piscivory. Fish growth is dependent on temperature, food level (including prey type, prey size and its density), and extent of competitive interactions and cannibalism.The growth of fish in their first year of life is an important factor regulating competetive interactions within fish communities and the recruitment of adults. It may affect the structure and dynamics of fish communities with implications for lake food-web structure. In order to understand this early piscivory of 0+ perch, a laboratory study of its growth response was evaluated to answer how different feeding level (zooplanktonic versus fish preys) and predator density may affect growt

Druh

D - Stať ve sborníku

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

5th International conference on reservoir limnology and water quality

ISBN

80-210-3799-7

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

223

Název nakladatele

Botanický ústav AV ČR

Místo vydání

Průhonice

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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