About: Diel variation in gillnet catches and vertical distribution of pelagic fishes in a stratified European reservoir

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 (en)
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 (en)
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 (en)
skos:notation	RIV/60076658:12310/09:00010348!RIV10-MSM-12310___
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(1QS600170504), P(GP206/06/P418), P(IAA600170502), V, Z(AV0Z60170517)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kubečka, Jan Mrkvička, Tomáš Matěna, Josef Čech, Martin
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	Jihočeská univerzita v Českých Budějovicích / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	310404
http://linked.open...ai/riv/idVysledku	RIV/60076658:12310/09:00010348
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Gillnet; Diel catchability; Distribution; Epilimnetic fishes; CPUE; Man-made lake (en)
http://linked.open.../riv/klicoveSlovo	CPUE Distribution Diel catchability Epilimnetic fishes Gillnet Man-made lake
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[08991FBF3F04]
http://linked.open...i/riv/nazevZdroje	Fisheries Research
http://linked.open...in/vavai/riv/obor	GL
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Sinusoidal foraging and the role of fish in resorvoirs Limnological basis of sustainable management of reservoirs Seasonal dynamic of food consumption, growth and production of 0+ fish and their impact on zooplankton in a reservoir with a trophic gradient
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	96
http://linked.open...iv/tvurceVysledku	Kubečka, Jan Mrkvička, Tomáš Peterka, Jiří Prchalová, Marie Čech, Martin Matěna, Josef Draštík, Vladislav Vašek, Mojmír
http://linked.open...ain/vavai/riv/wos	000263396600010
http://linked.open...n/vavai/riv/zamer	Struktura, funkce a vývoj vodních ekosystémů
issn	0165-7836
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	12310
is http://linked.open...avai/riv/vysledek of	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 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

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