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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F09%3A00010348%21RIV10-MSM-12310___
rdf:type
n17:Vysledek skos:Concept
dcterms:description
The diet changes in gillnet catch rates and vertical distributions of pelagic fishes were determined in a deep, moderately eutrophic European reservoir. In late summer, when steep vertical gradients in temperature and dissolved oxygen developed in the reservoir, monofilament gillnets (12.5-70 mm bar mesh) covering the upper 7.5 m of the water column were set at two open-water locations over 44- and 46-h periods, respectively. Gillnets divided the sampled strata (i.e., the epilimnion and metalimnion) into five horizontal layers each 1.5 m thick. Captured fish were removed from the nets at regular 2-h intervals. The catches were numerically dominated by bleak Alburnus alburnus, roach Rutilus rutilus, perch Perca fluviatilis, bream Abramis brama and asp Aspius aspius. Catch rates varied considerably with the time of day. The total gillnet catch per 2-h was on average 3-4 times higher at twilight than during the day or at night. Decreased net visibility and increased fish activity were likely responsible The diet changes in gillnet catch rates and vertical distributions of pelagic fishes were determined in a deep, moderately eutrophic European reservoir. In late summer, when steep vertical gradients in temperature and dissolved oxygen developed in the reservoir, monofilament gillnets (12.5-70 mm bar mesh) covering the upper 7.5 m of the water column were set at two open-water locations over 44- and 46-h periods, respectively. Gillnets divided the sampled strata (i.e., the epilimnion and metalimnion) into five horizontal layers each 1.5 m thick. Captured fish were removed from the nets at regular 2-h intervals. The catches were numerically dominated by bleak Alburnus alburnus, roach Rutilus rutilus, perch Perca fluviatilis, bream Abramis brama and asp Aspius aspius. Catch rates varied considerably with the time of day. The total gillnet catch per 2-h was on average 3-4 times higher at twilight than during the day or at night. Decreased net visibility and increased fish activity were likely responsible
dcterms:title
Diel variation in gillnet catches and vertical distribution of pelagic fishes in a stratified European reservoir Diel variation in gillnet catches and vertical distribution of pelagic fishes in a stratified European reservoir
skos:prefLabel
Diel variation in gillnet catches and vertical distribution of pelagic fishes in a stratified European reservoir Diel variation in gillnet catches and vertical distribution of pelagic fishes in a stratified European reservoir
skos:notation
RIV/60076658:12310/09:00010348!RIV10-MSM-12310___
n4:aktivita
n9:V n9:Z n9:P
n4:aktivity
P(1QS600170504), P(GP206/06/P418), P(IAA600170502), V, Z(AV0Z60170517)
n4:cisloPeriodika
1
n4:dodaniDat
n11:2010
n4:domaciTvurceVysledku
n8:7942281 n8:9148582 n8:9147683 n8:4382870
n4:druhVysledku
n15:J
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n18:predkladatel
n4:idSjednocenehoVysledku
310404
n4:idVysledku
RIV/60076658:12310/09:00010348
n4:jazykVysledku
n19:eng
n4:klicovaSlova
Gillnet; Diel catchability; Distribution; Epilimnetic fishes; CPUE; Man-made lake
n4:klicoveSlovo
n5:Diel%20catchability n5:Distribution n5:Man-made%20lake n5:CPUE n5:Gillnet n5:Epilimnetic%20fishes
n4:kodStatuVydavatele
NL - Nizozemsko
n4:kontrolniKodProRIV
[08991FBF3F04]
n4:nazevZdroje
Fisheries Research
n4:obor
n10:GL
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
8
n4:projekt
n16:1QS600170504 n16:IAA600170502 n16:GP206%2F06%2FP418
n4:rokUplatneniVysledku
n11:2009
n4:svazekPeriodika
96
n4:tvurceVysledku
Draštík, Vladislav Matěna, Josef Mrkvička, Tomáš Prchalová, Marie Čech, Martin Peterka, Jiří Kubečka, Jan Vašek, Mojmír
n4:wos
000263396600010
n4:zamer
n13:AV0Z60170517
s:issn
0165-7836
s:numberOfPages
6
n7:organizacniJednotka
12310