A5047971661- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Coastal wetland ecosystem dynamics
- Diatoms and Algae Research
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Marine Biology and Environmental Chemistry
- Algal biology and biofuel production
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and environmental studies
- Seaweed-derived Bioactive Compounds
- Marine and fisheries research
- Protist diversity and phylogeny
- Coastal and Marine Management
- Methane Hydrates and Related Phenomena
- Microplastics and Plastic Pollution
- Cassava research and cyanide
- Cephalopods and Marine Biology
- Marine Sponges and Natural Products
- Biocrusts and Microbial Ecology
- Echinoderm biology and ecology
- Parasite Biology and Host Interactions
Biologie des Organismes et Écosystèmes Aquatiques
2016-2025
Institut de Recherche pour le Développement
2013-2025
Centre National de la Recherche Scientifique
2013-2025
Université de Caen Normandie
2020-2025
Sorbonne Université
2010-2025
Université des Antilles
2022-2025
Muséum national d'Histoire naturelle
2009-2024
Normandie Université
2016-2021
Groupe de Recherche en Écologie Arctique
2018
Adaptation et Diversité en Milieu Marin
2003-2014
It is recognized that microorganisms inhabiting natural sediments significantly mediate the erosive response of bed ("ecosystem engineers") through secretion naturally adhesive organic material (EPS: extracellular polymeric substances). However, little known about individual engineering capability main biofilm components (heterotrophic bacteria and autotrophic microalgae) in terms their contribution to EPS pool relative functional substratum stabilisation. This paper investigates effects on...
Filamentous fungi asymptomatically colonise the inner tissues of macroalgae, yet their ecological roles remain largely underexplored. Here, we tested if metabolites produced by fungal endophytes might protect host against a phylogenetically broad spectrum protistan pathogens. Accordingly, cultivable four brown algal species were isolated and identified based on LSU SSU sequencing. The metabolomes for ability to reduce infection pathogens in model Ectocarpus siliculosus. most active effective...
Brown macroalgae are an essential component of temperate coastal ecosystems and a growing economic sector. They harbor diverse microbial communities that regulate algal development health. This holobiont is dynamic achieves equilibrium via complex network host interactions. We now report bacterial fungal endophytes associated with four brown algae (Ascophyllum nodosum, Pelvetia canaliculata, Laminaria digitata, Saccharina latissima) produce metabolites interfere autoinducer-2 quorum sensing,...
Some sea slugs are able to steal functional chloroplasts (kleptoplasts) from their algal food sources, but the role and relevance of photosynthesis animal host remain controversial. While some researchers claim that kleptoplasts slowly digestible ‘snacks’, others advocate they enhance overall fitness much more profoundly. Our analysis shows light-dependent incorporation 13 C 15 N in albumen gland gonadal follicles slug Elysia timida , representing translocation photosynthates...
The accumulation of the widely-used antibacterial and antifungal compound triclosan (TCS) in freshwaters raises concerns about impact this harmful chemical on biofilms that are dominant life style microorganisms aquatic systems. However, investigations to-date rarely go beyond effects at cellular, physiological or morphological level. present paper focuses bacterial addressing possible impairment their functionality, while also examining substratum stabilization potential as one example an...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 465:85-97 (2012) - DOI: https://doi.org/10.3354/meps09915 Impacts of biogenic structures on benthic assemblages: microbes, meiofauna, macrofauna and related ecosystem functions Claire Passarelli1,*, Frédéric Olivier1,2, David M. Paterson3, Cédric Hubas1 1Muséum National d'Histoire Naturelle, UMR BOREA 7208...
In this study, we investigated the different photoregulation responses of diatom dominated natural biofilms to light intensities and wavelengths, over a tidal cycle in laboratory. We compared overall effect spectral quality from its absorption (Qphar) dependent effect. Two conditions were study photoprotective strategies: sediment (migrational) without (non-migrational). Three colors (blue, green red) two (low light, LL at 210 μmol.photons.m-2.s-1and high HL 800 μmol.photons.m-2.s-1) showed...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 260:151-159 (2003) - doi:10.3354/meps260151 Trophic ecology of nematodes from various microhabitats Roscoff Aber Bay (France): importance stranded macroalgae evidenced through δ13C and δ15N P. Riera*, C. Hubas Station Biologique de Roscoff, Université Pierre & Marie Curie Paris VI CNRS-INSUE, Place...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 316:53-68 (2006) - doi:10.3354/meps316053 Factors controlling benthic metabolism during low tide along a granulometric gradient in an intertidal bay (Roscoff Aber Bay, France) Cédric Hubas1,2,*, Dominique Davoult2, Thierry Cariou3, Luis Felipe Artigas1 1UMR 8013 ELICO, Université du Littoral Côte dOpale,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 419:85-94 (2010) - DOI: https://doi.org/10.3354/meps08851 Bacterivorous nematodes stimulate microbial growth and exopolymer production in marine sediment microcosms Cédric Hubas1,*, Calaivany Sachidhanandam1, Hervé Rybarczyk1, Helen V. Lubarsky2, Annelien Rigaux3, Tom Moens3, David M. Paterson2 1Muséum...
We examined mercury concentrations in three fish assemblages to estimate biomagnification rates the Iténez main river, affected by anthropogenic activities, and two unperturbed rivers from basin, Bolivian Amazon. Rivers presented low moderate water (from 1.25 ng L−1 2.96 L−1) natural differences terms of sediment load. Mercury were confronted trophic structure depicted carbon nitrogen stable isotopes composition (δ15N; δ13C) primary sources, invertebrates fishes. Results showed a slight...
Salinity regimes in estuaries and coastal areas vary with river discharge patterns, seawater evaporation, the morphology of waterways dynamics marine water mixing. Therefore, microalgae have to respond salinity variations at time scales ranging from daily annual cycles. Microalgae may also adapt physical alterations that induce loss connectivity between habitats enclosure bodies water. Here, we integrated physiological assays measurements morphological plasticity a functional genomics...
Abstract The microbiome of Saccharina latissima, an important brown macroalgal species in Europe, significantly influences its health, fitness, and pathogens resistance. Yet, comprehensive studies on the diversity function microbial communities (bacteria, eukaryotes, fungi) associated with this are lacking. Using metabarcoding, we investigated epimicrobiota S. latissima correlated metabolomic patterns (LC-MS/MS). Specific epibacterial eukaryotic inhabit surface, alongside a core microbiota,...
Abstract Some sacoglossan sea slugs incorporate intracellular functional algal chloroplasts, a process termed kleptoplasty. “Stolen” chloroplasts (kleptoplasts) can remain photosynthetically active up to several months, contributing animal nutrition. Whether this contribution occurs by means of translocation photosynthesis-derived metabolites from kleptoplasts the host or simple digestion such organelles remains controversial. Imaging 13 C and 15 N assimilation over 12-h incubation period...
ABSTRACT Limnospira can colonize a wide variety of environments (e.g., freshwater, brackish, alkaline, or alkaline-saline water) and develop dominant even permanent blooms that overshadow limit the diversity adjacent phototrophs, especially in alkaline saline environments. Previous phylogenomic analysis allowed us to distinguish two major phylogenetic clades (I II) but failed clearly segregate strains according their respective habitats terms salinity biogeography. In present work, we...