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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Exchange rate and small-scale movements of fish between a river and its backwater
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DA - Hydrology and limnology
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2000
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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