About: Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction

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About: Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction Goto Sponge NotDistinct Permalink

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	The impacts of grass carp grazing upon aquatic macrophytes nd reproduction of phytophilous cyrpinid, the rudd, were determined during the three-year study. Each of the two fishponds was stocked with 30 individuals of 2+, 3+ and 4+ rudd in April 1998, 1999 and 2000 respectively. In addition, the experimental fishpond was stocked with 10 individuals of two-year-old grass carp (30 kg/ha) in April 2000. In spring 2001, grass carp biomass attained 90 kg/ha. Grass carp grazing pressure reduced the biomass of the aquatic macrophytes and influenced their species composition. Biomass values decreased from 108.6 g/m2 in 1998 to 24.1 g/m2 in 2000 in the experimental fishpond but did not change in the control fishpond in 1998 and 1999. Selective grazing of grass carp shifted the dominance of Potamogeton pusillus, Eleocharis acicularis and Cladophora globulina in 1998 to Myriophyllum spicatum, Ceratophyllum demersum, Spirogyra sp., Elodea canadensis and Hydrodictyon reticulatum in 1999-2000. Rudd recruitment (the The impacts of grass carp grazing upon aquatic macrophytes nd reproduction of phytophilous cyrpinid, the rudd, were determined during the three-year study. Each of the two fishponds was stocked with 30 individuals of 2+, 3+ and 4+ rudd in April 1998, 1999 and 2000 respectively. In addition, the experimental fishpond was stocked with 10 individuals of two-year-old grass carp (30 kg/ha) in April 2000. In spring 2001, grass carp biomass attained 90 kg/ha. Grass carp grazing pressure reduced the biomass of the aquatic macrophytes and influenced their species composition. Biomass values decreased from 108.6 g/m2 in 1998 to 24.1 g/m2 in 2000 in the experimental fishpond but did not change in the control fishpond in 1998 and 1999. Selective grazing of grass carp shifted the dominance of Potamogeton pusillus, Eleocharis acicularis and Cladophora globulina in 1998 to Myriophyllum spicatum, Ceratophyllum demersum, Spirogyra sp., Elodea canadensis and Hydrodictyon reticulatum in 1999-2000. Rudd recruitment (the (en)
Title	Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction (en)
skos:prefLabel	Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction Grass carp (Ctenopharyngodon idella) grazing upon aquatic macrophytes and its impact upon rudd (Scardinius erythrophthalmus) reproduction (en)
skos:notation	RIV/60076658:12610/01:00002794!RIV/2002/MSM/126102/N
http://linked.open.../vavai/riv/strany	142
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 126100003)
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Adámek, Zdeněk Šetlíková, Irena
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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 / Výzkumný ústav rybářský a hydrobiologický
http://linked.open...dnocenehoVysledku	681362
http://linked.open...ai/riv/idVysledku	RIV/60076658:12610/01:00002794
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	reprodukce, amur bílý, Ctenopharyngodon idella, perlín, Scardinius erythrophthalmus, vodní makrofyta, vyžírací tlak (en)
http://linked.open.../riv/klicoveSlovo	amur bílý perlín reprodukce vodní makrofyta vyžírací tlak Scardinius erythrophthalmus Ctenopharyngodon idella
http://linked.open...ontrolniKodProRIV	[1E23A6F0FBE8]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	European Congress of Ichtyology
http://linked.open...in/vavai/riv/obor	GL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Adámek, Zdeněk Pípalová, Irena
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2001-09-03 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20126100003
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Praha
http://localhost/t...ganizacniJednotka	12610

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