About: Movement of fish between a river and its backwater: diel activity and relation to environmental gradient.

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About: Movement of fish between a river and its backwater: diel activity and relation to environmental gradient. Goto Sponge Distinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Movements of fish, in particular roach R. rutilus, perch P. fluviatilis, rudd S. erythrophthalmus, bleak A. alburnus and chub L. cephalus in relation to environmental variables were examined between the River Morava, Czech Republic, and a rehabilitated former meander. Data were taken over seven 24-h periods in April-June 1997 using two back-to-back traps. Of 170 fish captured, 70% moved from the backwater to the river. Diel activity differed between sampling dates, but overall bleak, roach and chub moved mainly between dusk and dawn, whereas perch moved throughout most of the day. Rudd showed bi-modal (mid-day, midnight) activity. However, avoidance behaviour could have biased results for species known to be wary of traps. Water level changes, temperature and illumination were among the main environmental factors influencing fish movement, along with spawning migrations relevant for most species. In all specimens, over 65% individuals captured were ready to spawn. Movements of fish, in particular roach R. rutilus, perch P. fluviatilis, rudd S. erythrophthalmus, bleak A. alburnus and chub L. cephalus in relation to environmental variables were examined between the River Morava, Czech Republic, and a rehabilitated former meander. Data were taken over seven 24-h periods in April-June 1997 using two back-to-back traps. Of 170 fish captured, 70% moved from the backwater to the river. Diel activity differed between sampling dates, but overall bleak, roach and chub moved mainly between dusk and dawn, whereas perch moved throughout most of the day. Rudd showed bi-modal (mid-day, midnight) activity. However, avoidance behaviour could have biased results for species known to be wary of traps. Water level changes, temperature and illumination were among the main environmental factors influencing fish movement, along with spawning migrations relevant for most species. In all specimens, over 65% individuals captured were ready to spawn. (en)
Title	Movement of fish between a river and its backwater: diel activity and relation to environmental gradient. Movement of fish between a river and its backwater: diel activity and relation to environmental gradient. (en)
skos:prefLabel	Movement of fish between a river and its backwater: diel activity and relation to environmental gradient. Movement of fish between a river and its backwater: diel activity and relation to environmental gradient. (en)
skos:notation	RIV/60077387:_____/03:62033031!RIV/2004/AV0/A62004/N
http://linked.open.../vavai/riv/strany	107;117
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/93/0734), P(GA206/97/0162), P(IAA6087503), P(KSK3046108), P(KSK6005114), Z(AV0Z6017912)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Hohausová, Eva
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Hydrobiologický ústav AV ČR
http://linked.open...dnocenehoVysledku	616529
http://linked.open...ai/riv/idVysledku	RIV/60077387:_____/03:62033031
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	river-backwater connection; behaviour; traps (en)
http://linked.open.../riv/klicoveSlovo	traps behaviour river-backwater connection
http://linked.open...odStatuVydavatele	DK - Dánské království
http://linked.open...ontrolniKodProRIV	[983847FE55F2]
http://linked.open...i/riv/nazevZdroje	Ecology of Freshwater Fish
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Effect of climatic and antropogenic impacts on the life and lifeless environment Biodiversity and functions of ecological systems General Principles of Re-Vitalization of the Morava River Floodplain Near Mohelnice The restoration of the ecological continuum of the Morava River Biotic integrity of fish assemblagee in extreme man - made reservoirs, and possibilitie its evaluation
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	12
http://linked.open...iv/tvurceVysledku	Hohausová, Eva Copp, G. Jankovský, P.
http://linked.open...n/vavai/riv/zamer	Biotické interakce v pelagické zóně lenitických ekosystémů, údolních nádrží a jezer různé trofie v podmínkách výrazného snížení emisí v postkomunistické Evropě
issn	0906-6691
number of pages	11 (xsd:int)

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