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Statements

Subject Item
n2:RIV%2F49777513%3A23420%2F10%3A00504644%21RIV11-MSM-23420___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
The stone crayfish Austropotamobius torrentium (Schrank) is one of five species of crayfish inhabiting waters in the Czech Republic, usually occupying small and medium-sized streams. The stone crayfish is protected by national and European laws. At present, stone crayfish are known to occur in 41 streams in the Czech Republic. For each of these streams, we measured the population density, sex ratio and age structure of the stone crayfish populations. The average population density varied between 0.3? 4.72 spms m-2, with a maximum estimated population density at some sites reaching 8.6 spms m-2. The sex ratio was evaluated only in abundant populations (> 0.5 spms m-2) and it did not significantly vary from the expected rate of 0.5 (0.3-0.72). The stone crayfish Austropotamobius torrentium (Schrank) is one of five species of crayfish inhabiting waters in the Czech Republic, usually occupying small and medium-sized streams. The stone crayfish is protected by national and European laws. At present, stone crayfish are known to occur in 41 streams in the Czech Republic. For each of these streams, we measured the population density, sex ratio and age structure of the stone crayfish populations. The average population density varied between 0.3? 4.72 spms m-2, with a maximum estimated population density at some sites reaching 8.6 spms m-2. The sex ratio was evaluated only in abundant populations (> 0.5 spms m-2) and it did not significantly vary from the expected rate of 0.5 (0.3-0.72).
dcterms:title
Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic
skos:prefLabel
Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic
skos:notation
RIV/49777513:23420/10:00504644!RIV11-MSM-23420___
n3:aktivita
n11:V
n3:aktivity
V
n3:cisloPeriodika
394-395
n3:dodaniDat
n6:2011
n3:domaciTvurceVysledku
n7:4798392
n3:druhVysledku
n17:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
284143
n3:idVysledku
RIV/49777513:23420/10:00504644
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Austropotamobius torrentium; Czech Republic; abundance; distribution; ecology
n3:klicoveSlovo
n4:abundance n4:Czech%20Republic n4:distribution n4:ecology n4:Austropotamobius%20torrentium
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[F7117B688BA2]
n3:nazevZdroje
Knowledge and Management of Aquatic Ecosystems
n3:obor
n8:DA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n6:2010
n3:svazekPeriodika
83
n3:tvurceVysledku
Fischer, D. Hulec, L. Vlach, Pavel
n3:wos
000280166500013
s:issn
1961-9502
s:numberOfPages
10
n14:organizacniJednotka
23420