Nepřímé důsledky predace kormorána velkého (Phalacrocorax carbo (L.)) na obsádky rybníků

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F08%3A00008918" target="_blank" >RIV/60076658:12610/08:00008918 - 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

Indirect manifestation of cormorant (Phalacrocorax carbo (L.)) predation on pond fish stock

Popis výsledku v původním jazyce

The damage to fisheries caused by cormorant predation pressure consists of losses due to direct predation and subsequent indirect losses elicited by cormorant feeding activities resulting in fish wounding and stress. Healed wounds reduce the commercial value of afflicted fish and stress may impact fish body and health condition. Fulton´s condition coefficient (FCC) was calculated for wounded and healthy two?year old carp originating from five South Moravian (Czech Republic) fishponds. Significant (P = 0,0011) differences in FCC were found between non-wounded (1,48 ? 0,11, n = 19) and wounded mirror common carp, Cyprinus carpio (1,33 ? 0,14, n = 19). However no differences (P >0,05) were recorded in scaly common carp between non-wounded (FCC 1,41 ? 0,25, n = 33) and wounded (FCC 1,46 ? 0,47, n = 33) fish of the same age and size category. A computer assisted image analysis was applied to describe the extent of such injuries. In the case of two-year old mirror, scaly and bighead carp (Ar

Název v anglickém jazyce

Indirect manifestation of cormorant (Phalacrocorax carbo (L.)) predation on pond fish stock

Popis výsledku anglicky

The damage to fisheries caused by cormorant predation pressure consists of losses due to direct predation and subsequent indirect losses elicited by cormorant feeding activities resulting in fish wounding and stress. Healed wounds reduce the commercial value of afflicted fish and stress may impact fish body and health condition. Fulton´s condition coefficient (FCC) was calculated for wounded and healthy two?year old carp originating from five South Moravian (Czech Republic) fishponds. Significant (P = 0,0011) differences in FCC were found between non-wounded (1,48 ? 0,11, n = 19) and wounded mirror common carp, Cyprinus carpio (1,33 ? 0,14, n = 19). However no differences (P >0,05) were recorded in scaly common carp between non-wounded (FCC 1,41 ? 0,25, n = 33) and wounded (FCC 1,46 ? 0,47, n = 33) fish of the same age and size category. A computer assisted image analysis was applied to describe the extent of such injuries. In the case of two-year old mirror, scaly and bighead carp (Ar

Druh

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

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

2008

Kód důvěrnosti údajů

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

Název periodika

Knowledge and Management of Aquatic Ecosystems

ISSN

1961-9502

e-ISSN

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Svazek periodika

389

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

000264465800001

EID výsledku v databázi Scopus

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