Document généré le 31/08/2025 depuis l'adresse: https://www.documentation.eauetbiodiversite.fr/fr/notice/investigation-into-the-ecology-of-the-ormer
Permalien: https://www.documentation.eauetbiodiversite.fr/fr/notice/investigation-into-the-ecology-of-the-ormer
Titre alternatif
Producteur
Contributeur(s)
EDP Sciences
Identifiant documentaire
10-1989024
Identifiant OAI
oai:edpsciences.org:dkey/10.1051/alr:1989024
Auteur(s):
Jacques Clavier,Pierre Chardy
Mots clés
Brittany
ecology
spatial distribution
correspondence analysis
Bretagne
répartition spatiale
analyse factorielle des correspondances
Date de publication
15/10/1989
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/alr:1989024
Droits de réutilisation
Région
Département
Commune
Description
The factors affecting spatial distribution of the ormer (Haliotis tuberculata L.) in the vicinity of Saint-Malo (northern Brittany, France) are analyzed using a multivariate
approach. A correspondence analysis is applied to a contingency table based on 200 samples. Ormers are always absent from smooth rocky substrata, exposed to a strong current or deeper than 8 m below
low chart datum. Abundance and biomass of H. tuberculata are distributed along a gradient correlated with an increasing complexity of habitat and a reduction of current. Otherwise, no correlation has been found between characteristics of ormer distribution and surge, depth or large and turf algae.
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