Exchange rate and small-scale movements of fish between a river and its backwater

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F00%3A00002721" target="_blank" >RIV/60076658:12310/00:00002721 - 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

Exchange rate and small-scale movements of fish between a river and its backwater

Popis výsledku v původním jazyce

Movements of four freshwater fish species, pike (Esox lucius), roach (Rutilus rutilus), rudd (Scardinius erythrophthalmus) and perch (Perca fluviatilis), were studied in a backwater (1.2 ha) of the River Morava (Czech Republic), consisting of five poolspermanently connected to each other and to the river. Pool-specific fin-clipping was used to mark fish collected by electrofishing at monthly intervals (March to November 1995). Of the 367 fish marked, 85 were recaptured, giving a return of 23.16 %. Pikeand rudd tended to remain in their home pool, with rudd showing higher activity within the backwater than pike. Roach and perch were not resident in the backwater. The ratio between two population estimates, the Schnabel and Seber gr LeCren estimates, was used to calculate an exchange rate of fish movement between the river and the backwater. Immigration and emigration was greater in roach and perch, having an average exchange rate of 90-96 % per month and a low number of recaptures. In

Název v anglickém jazyce

Exchange rate and small-scale movements of fish between a river and its backwater

Popis výsledku anglicky

Movements of four freshwater fish species, pike (Esox lucius), roach (Rutilus rutilus), rudd (Scardinius erythrophthalmus) and perch (Perca fluviatilis), were studied in a backwater (1.2 ha) of the River Morava (Czech Republic), consisting of five poolspermanently connected to each other and to the river. Pool-specific fin-clipping was used to mark fish collected by electrofishing at monthly intervals (March to November 1995). Of the 367 fish marked, 85 were recaptured, giving a return of 23.16 %. Pikeand rudd tended to remain in their home pool, with rudd showing higher activity within the backwater than pike. Roach and perch were not resident in the backwater. The ratio between two population estimates, the Schnabel and Seber gr LeCren estimates, was used to calculate an exchange rate of fish movement between the river and the backwater. Immigration and emigration was greater in roach and perch, having an average exchange rate of 90-96 % per month and a low number of recaptures. In

Druh

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

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2000

Kód důvěrnosti údajů

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

Název periodika

Archiv für Hydrobiologie

ISSN

0003-9136

e-ISSN

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Svazek periodika

147

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

XX - osoby bez státní příslušnosti

Počet stran výsledku

19

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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