About: Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic     Goto   Sponge   NotDistinct   Permalink

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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). (en)
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 (en)
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 (en)
skos:notation
  • RIV/49777513:23420/10:00504644!RIV11-MSM-23420___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • V
http://linked.open...iv/cisloPeriodika
  • 394-395
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 284143
http://linked.open...ai/riv/idVysledku
  • RIV/49777513:23420/10:00504644
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Austropotamobius torrentium; Czech Republic; abundance; distribution; ecology (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • FR - Francouzská republika
http://linked.open...ontrolniKodProRIV
  • [F7117B688BA2]
http://linked.open...i/riv/nazevZdroje
  • Knowledge and Management of Aquatic Ecosystems
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 83
http://linked.open...iv/tvurceVysledku
  • Fischer, D.
  • Vlach, Pavel
  • Hulec, L.
http://linked.open...ain/vavai/riv/wos
  • 000280166500013
issn
  • 1961-9502
number of pages
http://localhost/t...ganizacniJednotka
  • 23420
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