A5053316958- Marine and coastal plant biology
- Seaweed-derived Bioactive Compounds
- Marine Biology and Ecology Research
- Algal biology and biofuel production
- Echinoderm biology and ecology
- Marine and coastal ecosystems
- Marine Biology and Environmental Chemistry
- Biocrusts and Microbial Ecology
- Fluoride Effects and Removal
- Heavy metals in environment
- Coastal wetland ecosystem dynamics
- Ocean Acidification Effects and Responses
- Mercury impact and mitigation studies
- Atmospheric chemistry and aerosols
- Aquatic Ecosystems and Phytoplankton Dynamics
- Coastal and Marine Management
- Protein Hydrolysis and Bioactive Peptides
- Plant Growth Enhancement Techniques
- Categorization, perception, and language
- Coral and Marine Ecosystems Studies
- Moringa oleifera research and applications
- Food Allergy and Anaphylaxis Research
- Photosynthetic Processes and Mechanisms
- Prion Diseases and Protein Misfolding
- Marine Sponges and Natural Products
Laboratoire des Sciences de l'Environnement Marin
2002-2025
Institut Universitaire Européen de la Mer
2003-2025
Centre National de la Recherche Scientifique
2002-2024
Institut de Recherche pour le Développement
2019-2024
Université de Bretagne Occidentale
2019-2024
Ifremer
2019-2024
Laboratoire de Génie des Procédés – Environnement – Agro-alimentaire
2014-2021
Ollscoil na Gaillimhe – University of Galway
2011-2015
Institut National des Sciences de l'Univers
2012-2015
Conservatoire National des Arts et Métiers
2012-2015
We report here on a survey of phenolic contents in all seaweeds forming belts sheltered rocky shore Brittany (France). Eight species brown algae (7 Fucales and 1 Laminariales) were investigated over 14-month period. Levels compounds members the generally above 2% DW exceeded those found Laminariales by factor ten. The highest growing at mid-tide level, with decrease below this level. There was seasonal pattern, summer maximum for winter member Laminariales.
Abstract Bursting bubbles at the ocean-surface produce airborne salt-water spray-droplets, in turn, forming climate-cooling marine haze and cloud layers. The reflectance ultimate cooling effect of these layers is determined by spray’s water-uptake properties that are modified through entrainment organic matter ( OM ) into droplets. We present new results illustrating a clear dependence mass-fraction enrichment sea spray ss on both phytoplankton-biomass, from Chlorophyll-a Chl-a Net Primary...
ABSTRACT Introduction Phlorotannins, phenolic compounds produced exclusively by Phaeophyceae (brown algae), have recently been associated with a wide variety of beneficial bioactivities. Several studies measured the total content in extracts from various species, but little characterisation individual phlorotannin components has demonstrated. Objective The purpose this study was to develop liquid chromatography–mass spectrometry (LC‐MS) based method for rapid profiling phlorotannins brown...
The present study reports on observations carried out in the Tropical North Atlantic summer and autumn 2017, documenting Sargassum aggregations using both ship-deck satellite sensor at three resolutions (MSI-10 m, OLCI-300 VIIRS-750 m MODIS-1 km). Both datasets reported that summer, were mainly observed off Brazil near Caribbean Islands, while they accumulated African coast autumn. Based situ observations, we propose a five-class typology allowing standardisation of description raft shapes...
Since 2011, massive new strandings of holopelagic Sargassum have been reported on the coasts Caribbean, northern Brazil, Guiana, and West Africa, causing severe economic ecological damage. Three common morphotypes (S. fluitans III, S. natans I, VIII) were identified as responsible for these catastrophic events, with dominance shifts between them over time. However, taxonomic status remains unclear. Using an integrative taxonomy framework, combining a morphological study molecular analyses,...
This study focuses on the intra-thallus variation in phlorotannin content and antioxidant activity temperate brown seaweeds. Two species of Fucales (Ascophyllum nodosum Sargassum muticum) two Laminariales (Laminaria digitata L. hyperborea) were collected from shoreline Brittany (France). Both contained high phenolic levels along their thallus (ca. 5% DW A. 6% S. muticum). No significant differences found between vegetative reproductive parts nodosum. In contrast, inter-specific variations...
Brown seaweeds are attracting attention due to their richness in bioactive compounds, particular, phlorotannins. We present here a case study of two Fucales, Ascophyllum nodosum and Halidrys siliquosa, sustainably collected, produce active polyphenols for the cosmetics sector. Phenolic contents crude extracts, obtained by Accelerated Solvent Extraction (ASE), were more elevated H. siliquosa at 100.05 mg/g dry weight (DW) than A. (29.51 DW), considering 3 cycles with cell inversion. The...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 22:177-193 (2014) - DOI: https://doi.org/10.3354/ab00610 Theme Section: Environmental forcing of aquatic primary productivity Short-term effects increasing CO2, nitrate and temperature on three Mediterranean macroalgae: biochemical composition F. L. Figueroa1, J. Bonomi Barufi2, E. Malta3,*, R. Conde-Álvarez1, U. Nitschke4, Arenas5,...
The worldwide growing food demand and the excessive use of synthetic chemical inputs compel agricultural sector to find innovative sustainable solutions enhance or at least maintain crop yields in times increased abiotic stresses levels linked global change. Currently, great research efforts are carried out on brown seaweeds as their environment lead them produce a broad range compounds, with osmoregulatory, antioxidant, pro-bacterial, plant-growth promoting activities. Indeed, numerous...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 22:159-176 (2014) - DOI: https://doi.org/10.3354/ab00576 Theme Section: Environmental forcing of aquatic primary productivity Short-term effects CO2, nutrients and temperature on three marine macroalgae under solar radiation D. B. Stengel1,*, R. Conde-Álvarez, S. Connan, U. Nitschke, F. Arenas, H. Abreu, J. Bonomi Barufi, Chow,...