About: Fish (Osteichthyes) in Biesbosch storage reservoirs (the Netherlands): a method for assessing complex stocks of fish

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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A new method of habitat volume and CPUE weighting of gillnet catches is proposed and reasonable correspondence was found between the length and weight compositions of acoustic and netting results. The fish stock in three Biesbosch reservoirs (the Netherlands) was studied using an echosounder, Nordic multi mesh gillnets, fry trawling and beach and purse seining. There were up to 11 benthic and open water habitats in the reservoirs based on the depth and slope of the bottom. All these habitats were inhabited by fish but differed in terms of the relative abundance, age and species present, volume and importance. The fish stock can be characterized as a smelt-pikeperch system. In addition to European smelt, important prey fish are common bream and roach. The survival rates of the prey fish were extremely low. The survival rate of percid fish (European perch, pikeperch and ruffe) was much higher. Lack of cyprinid reproduction and a high natural mortality keep the total biomass of fish at less than 100 kgha–1. A new method of habitat volume and CPUE weighting of gillnet catches is proposed and reasonable correspondence was found between the length and weight compositions of acoustic and netting results. The fish stock in three Biesbosch reservoirs (the Netherlands) was studied using an echosounder, Nordic multi mesh gillnets, fry trawling and beach and purse seining. There were up to 11 benthic and open water habitats in the reservoirs based on the depth and slope of the bottom. All these habitats were inhabited by fish but differed in terms of the relative abundance, age and species present, volume and importance. The fish stock can be characterized as a smelt-pikeperch system. In addition to European smelt, important prey fish are common bream and roach. The survival rates of the prey fish were extremely low. The survival rate of percid fish (European perch, pikeperch and ruffe) was much higher. Lack of cyprinid reproduction and a high natural mortality keep the total biomass of fish at less than 100 kgha–1. (en)
Title	Fish (Osteichthyes) in Biesbosch storage reservoirs (the Netherlands): a method for assessing complex stocks of fish Fish (Osteichthyes) in Biesbosch storage reservoirs (the Netherlands): a method for assessing complex stocks of fish (en)
skos:prefLabel	Fish (Osteichthyes) in Biesbosch storage reservoirs (the Netherlands): a method for assessing complex stocks of fish Fish (Osteichthyes) in Biesbosch storage reservoirs (the Netherlands): a method for assessing complex stocks of fish (en)
skos:notation	RIV/60077344:_____/13:00426431!RIV14-AV0-60077344
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(QH81046)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Hladík, Milan Frouzová, Jaroslava Kubečka, Jan Peterka, Jiří Kratochvíl, Michal Draštík, Vladislav Jůza, Tomáš Prchalová, Marie Hohausová, Eva Čech, Martin Vašek, Mojmír
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	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	75230
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/13:00426431
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	abundance; biomass; distribution (en)
http://linked.open.../riv/klicoveSlovo	biomass distribution abundance
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[213B12F7B2F6]
http://linked.open...i/riv/nazevZdroje	Acta Societatis Zoologicae Bohemicae
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	11 (xsd:int)
http://linked.open...cetTvurcuVysledku	13 (xsd:int)
http://linked.open...vavai/riv/projekt	Optimalisation of the biomanipulative effect of predatory fish in ecosystems of water reservoirs.
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	77
http://linked.open...iv/tvurceVysledku	Hladík, Milan Kubečka, Jan Peterka, Jiří Prchalová, Marie Čech, Martin Frouzová, Jaroslava Draštík, Vladislav Hohausová, Eva Jůza, Tomáš Kratochvíl, Michal Vašek, Mojmír Ketelaars, H. A. M. Wagenvoort, A. J.
issn	1211-376X
number of pages	8 (xsd:int)

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