Diurnal and seasonal behaviour of adult and juvenile

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F07%3A00001659" target="_blank" >RIV/00020711:_____/07:00001659 - 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

Diurnal and seasonal behaviour of adult and juvenile

Original language description

The ?rst telemetry study analysing behaviour of the largest freshwater predator in European rivers, Silurus glanis, was performed bimonthly during the years 2002?2004. Movement of juveniles and adults occurred mostly in the same time intervals. The onlystatistical differences occurred for nocturnal activity in spring and autumn. In spring and winter, activity was low with the peaks during daylight, and in autumn, maximal movement was recorded during dusk. In summer, the European cat?sh were active across the whole 24 h even during high-?ow conditions. During all other seasons, movement was inversely related to ?ow rate. Maximal home ranges occurred in summer, being larger for adults. Juveniles and adults were spatially segregated. With increasing ?ow,?sh were displaced, and individuals from both groups got closer to each other. Only juveniles migrated downstream from the upstream isolated river stretch suggesting a negative impact of lateral obstructions on the ?sh population structu

Czech name

Diurnální a sezónní chování dospělých a juvenilních sumců sledované pomocí radiotelemetrie

Czech description

The ?rst telemetry study analysing behaviour of the largest freshwater predator in European rivers, Silurus glanis, was performed bimonthly during the years 2002?2004. Movement of juveniles and adults occurred mostly in the same time intervals. The onlystatistical differences occurred for nocturnal activity in spring and autumn. In spring and winter, activity was low with the peaks during daylight, and in autumn, maximal movement was recorded during dusk. In summer, the European cat?sh were active across the whole 24 h even during high-?ow conditions. During all other seasons, movement was inversely related to ?ow rate. Maximal home ranges occurred in summer, being larger for adults. Juveniles and adults were spatially segregated. With increasing ?ow,?sh were displaced, and individuals from both groups got closer to each other. Only juveniles migrated downstream from the upstream isolated river stretch suggesting a negative impact of lateral obstructions on the ?sh population structu

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Journal of Fish Biology

ISSN

0022-1112

e-ISSN

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Volume of the periodical

2007

Issue of the periodical within the volume

71

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

101-114

UT code for WoS article

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EID of the result in the Scopus database

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