Document généré le 08/03/2026 depuis l'adresse: https://www.documentation.eauetbiodiversite.fr/fr/notice/recent-distribution-population-densities-and-ecological-requirements-of-the-stone-crayfish
Titre alternatif
Producteur
Contributeur(s)
Éditeur(s)
EDP Sciences
Identifiant documentaire
11-dkey/10.1051/kmae/2010005
Identifiant OAI
oai:edpsciences.org:dkey/10.1051/kmae/2010005
Auteur(s):
P. Vlach,L. Hulec,D. Fischer
Mots clés
stone crayfish
Czech Republic
abundance
distribution
ecology
écrevisse des torrents
République tchèque
abondance
distribution
écologie
Date de publication
19/02/2010
Date de création
Date de modification
Date d'acceptation du document
Date de dépôt légal
Langue
en
Thème
Type de ressource
Source
https://doi.org/10.1051/kmae/2010005
Droits de réutilisation
Région
Département
Commune
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).
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