About: The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity

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About: The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity 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	Apart from the availability of suitable food, crayfish density and number of shelters are considered among the most important factors affecting the production in an intensive and/or semi-intensive culture. The effect of crayfish density and of the number of shelters on the activity of one-year-old signal crayfish (Pacifastacus leniusculus) were observed in our experiment. We tested combinations of densities 18.8, 28.1 and 34.4 ind.m-2 and rates of crayfish to the number of shelters 1:1, 1:1.5 and 1:2.There was found only one difference in crayfish activity. Crayfish at the highest density and 1:1 crayfish/shelters ratio restricted their activity and they probably protected their shelters. The daily activity of one-year-old and of adult signal cray fish was investigated in a three-day-continuous experiment in fibreglass tanks. Most of one-year-old crayfish were active between 7 p.m. and 3 a.m. and the lowest activity was registered between 6 a.m. and 11 a.m. The adult crayfish were active between 7 Apart from the availability of suitable food, crayfish density and number of shelters are considered among the most important factors affecting the production in an intensive and/or semi-intensive culture. The effect of crayfish density and of the number of shelters on the activity of one-year-old signal crayfish (Pacifastacus leniusculus) were observed in our experiment. We tested combinations of densities 18.8, 28.1 and 34.4 ind.m-2 and rates of crayfish to the number of shelters 1:1, 1:1.5 and 1:2.There was found only one difference in crayfish activity. Crayfish at the highest density and 1:1 crayfish/shelters ratio restricted their activity and they probably protected their shelters. The daily activity of one-year-old and of adult signal cray fish was investigated in a three-day-continuous experiment in fibreglass tanks. Most of one-year-old crayfish were active between 7 p.m. and 3 a.m. and the lowest activity was registered between 6 a.m. and 11 a.m. The adult crayfish were active between 7 (en)
Title	The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity (en)
skos:prefLabel	The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity The daily activity of signal crayfish and the effect of crayfish density and of the number of shelters on this activity (en)
skos:notation	RIV/60076658:_____/02:00004153!RIV/2003/MSM/120003/N
http://linked.open.../vavai/riv/strany	457-462
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 126100001), Z(MSM 126100002)
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Policar, Tomáš Kouřil, Jan Kozák, Pavel
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 / (nerozlišená součást)
http://linked.open...dnocenehoVysledku	642130
http://linked.open...ai/riv/idVysledku	RIV/60076658:_____/02:00004153
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	rak signální, denní aktivita, hustota obsádky, počet úkrytů (en)
http://linked.open.../riv/klicoveSlovo	denní aktivita hustota obsádky počet úkrytů rak signální
http://linked.open...ontrolniKodProRIV	[32CD216FA424]
http://linked.open...v/mistoKonaniAkce	?
http://linked.open...i/riv/mistoVydani	Lafayette
http://linked.open...i/riv/nazevZdroje	Freshwater Crayfish
http://linked.open...in/vavai/riv/obor	GL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2002
http://linked.open...iv/tvurceVysledku	Kozák, Pavel Kouřil, Jan Policar, Tomáš Kajtman, J.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2002-01-01 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20126100001 http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20126100002
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	International Association of Astacology
https://schema.org/isbn	0-9581424-0-8

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