title: Underwater acoustic positioning systems as tool for Posidonia oceanica beds survey.
abstract: The study of the dynamics of Posidonia oceanica beds, and more particularly, the position of their lower limit, are usually carried out by the installation and monitoring of markers set on the sea bottom. Acoustic telemetry could constitute an interesting alternative solution to the marking of the lower limit seagrass beds. In order to test the potentialities of this system, an experiment was conducted in the Natural Marine Reserve of Cerbère-Banyuls (eastern Pyrenees, France). The possibility of very precise mapping offers many potentialities with regards to the work of monitoring networks in the marine environment (species and assemblages of importance), but also in the monitoring of competition dynamics between the species.
authors.affiliation: L'OEil d'Andromède, université Montpellier-2, 163, rue Auguste-Broussonnet, 34090 Montpellier, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Descamp
authors.forename: Gérard
authors.initials: G
authors.lastname: Pergent
authors.forename: Laurent
authors.initials: L
authors.lastname: Ballesta
authors.forename: Mathieu
authors.initials: M
authors.lastname: Foulquié
mesh_terms: D035961:Alismatales / Q000254:growth & development*; D003247:Conservation of Natural Resources; D017753:Ecosystem; D005602:France; D012623:Seawater