Document généré le 17/04/2026 depuis l'adresse: https://www.documentation.eauetbiodiversite.fr/fr/notice/a-study-on-the-possible-effect-of-two-crayfish-species-on-epilithic-algae-in-a-mountain-stream-from-central-spain
A STUDY ON THE POSSIBLE EFFECT OF TWO CRAYFISH SPECIES ON EPILITHIC ALGAE IN A MOUNTAIN STREAM FROM CENTRAL SPAIN
Titre alternatif
Producteur
Contributeur(s)
Éditeur(s)
EDP Sciences
Identifiant documentaire
11-2006016
Identifiant OAI
oai:edpsciences.org:dkey/10.1051/kmae:2006016
Auteur(s):
J. A. ARCE,F. ALONSO,E. RICO,A. CAMACHO
Mots clés
Austropotamobius italicus
Pacifastacus leniusculus
chlorophylls
epilithon
Austropotamobius italicus
Pacifastacus leniusculus
chlorophylles
épilithon
Date de publication
01/04/2008
Date de création
Date de modification
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Date de dépôt légal
Langue
en
Thème
Type de ressource
Source
https://doi.org/10.1051/kmae:2006016
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Description
The effects on epilithic algae of increasing densities of two crayfish species, Austropotamobius italicus and Pacifastacus leniusculus, the latter recently introduced in Spain, have been monitored using riverine enclosures, within a large experimental study on crayfish-macrobenthos interactions in a mountain stream. A 3-month test was carried out for each species using crayfish densities comprising between 0-5 individuals/m2 kept in 1-m2 enclosures. Epilithon was sampled periodically within the enclosures and chlorophyll a, b and c were measured by spectrophotometry. Neither statistically significant positive nor negative effects were observed on algal abundance (Chl concentrations) during the experiments. Both species showed similar responses with time, with no significantly marked trends.
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