Spatial and seasonal variation in density, reproductive status, length and phenolic content of the invasive brown macroalga Sargassum muticum (Yendo) Fensholt along the coast of Western Brittany (France)

Erwan Plouguerné; Klervi Le Lann; Solène Connan; Grégory Jéchoux; Eric Deslandes; Valérie Stiger-Pouvreau

doi:10.1016/j.aquabot.2006.06.011

Spatial and seasonal variation in density, reproductive status, length and phenolic content of the invasive brown macroalga Sargassum muticum (Yendo) Fensholt along the coast of Western Brittany (France)

Erwan Plouguerné ^{1, *} Klervi Le Lann ¹ Solène Connan ¹ Grégory Jéchoux ¹ Eric Deslandes ¹ Valérie Stiger-Pouvreau ¹

* Auteur correspondant

1 LEBHAM - Laboratoire d'Écophysiologie et de Biotechnologie des Halophytes et des Algues Marines

Abstract : The introduced macroalga Sargassum muticum (Yendo) Fensholt is currently observed along the coasts of Brittany. From February 2003 till June 2004, variations in density, reproductive status, length and phenolic content were assessed at three sites. Seasonal variability of the density was pronounced at two exposed sites (Fort Bloqué and Pointe du Diable), but absent at the sheltered site (Callot), where the macroalga was observed year-round. Thalli were generally longer in Summer (up to 73.2 ± 2.7 cm at Fort Bloqué), and had reproductive receptacles from May to September at Pointe du Diable, though only from June to September in the other stations (Callot and Fort Bloqué). Phenolic content was maximal during the reproductive period, which could be interpreted as chemical protection of the receptacles. Finally the collected data were used to explain the persistence of S. muticum and its proliferation in Brittany.

Keywords : French Brittany Phenolic content Population biology Spatio-temporal variation Invasive Sargassum muticum

Type de document :

Article dans une revue

Aquatic Botany, Elsevier, 2006, 85 (4), pp.337-344. 〈10.1016/j.aquabot.2006.06.011〉

Domaine :

Sciences de l'environnement

Liste complète des métadonnées

http://hal.univ-brest.fr/hal-00638058
Contributeur : Catherine Bertignac <>
Soumis le : jeudi 3 novembre 2011 - 17:07:23
Dernière modification le : mercredi 29 novembre 2017 - 09:17:30

Spatial and seasonal variation in density, reproductive status, length and phenolic content of the invasive brown macroalga Sargassum muticum (Yendo) Fensholt along the coast of Western Brittany (France)

Identifiants

Collections

Citation

Exporter

Métriques

294

Contact

Spatial and seasonal variation in density, reproductive status, length and phenolic content of the invasive brown macroalga Sargassum muticum (Yendo) Fensholt along the coast of Western Brittany (France)

Identifiants

Collections

Citation

Exporter

Partager

Métriques

294

Contact