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)
| Autor: | Erwan Plouguerné, Eric Deslandes, Gregory Jechoux, Klervi Le Lann, Valérie Stiger-Pouvreau, Solène Connan |
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| Přispěvatelé: | Laboratoire d'Écophysiologie et de Biotechnologie des Halophytes et des Algues Marines (LEBHAM), Université de Brest (UBO) |
| Rok vydání: | 2006 |
| Předmět: |
0106 biological sciences
Invasive Sargassum muticum Plant Science Population biology Phenolic content Aquatic Science 010603 evolutionary biology 01 natural sciences Population density Invasive species Aquatic plant Botany medicine 14. Life underwater biology Ecology 010604 marine biology & hydrobiology Seasonality biology.organism_classification medicine.disease Spatio-temporal variation Thallus [SDE]Environmental Sciences French Brittany Spatial variability |
| Zdroj: | Aquatic Botany Aquatic Botany, Elsevier, 2006, 85 (4), pp.337-344. ⟨10.1016/j.aquabot.2006.06.011⟩ |
| ISSN: | 0304-3770 |
| DOI: | 10.1016/j.aquabot.2006.06.011 |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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