A5050249885- Coastal wetland ecosystem dynamics
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Cassava research and cyanide
- Coral and Marine Ecosystems Studies
- Aquatic Invertebrate Ecology and Behavior
- Coastal and Marine Dynamics
- Marine and coastal plant biology
- Oil Palm Production and Sustainability
- Marine and fisheries research
- Oil Spill Detection and Mitigation
- Remote Sensing and LiDAR Applications
- Coastal and Marine Management
- Microbial Community Ecology and Physiology
- Arctic and Antarctic ice dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and environmental studies
- Geological formations and processes
- Geology and Paleoclimatology Research
- Microplastics and Plastic Pollution
- Aeolian processes and effects
- Diatoms and Algae Research
- Microbial bioremediation and biosurfactants
- Fish Ecology and Management Studies
Ifremer
2015-2025
Laboratoire des Sciences de l'Environnement Marin
2016-2025
Université de Bretagne Occidentale
2009-2025
Centre National de la Recherche Scientifique
2013-2025
Institut de Recherche pour le Développement
2015-2024
Institut Universitaire Européen de la Mer
2013-2024
Laboratoire de Biotechnologie et Chimie Marines
2005-2010
Stony Brook University
2010
Université du Québec à Rimouski
2003-2007
Station Marine d'Endoume
2003-2006
Bifungites is an inverted π-shaped vertical burrow that was recovered from 52 stratigraphic levels in the Upper Ordovician (Katian) Kermeur Formation of Crozon Peninsula northwestern France. Its excellent quality and abundance various sedimentary facies allow re-evaluations ichnotaxonomy, taphonomy, ethology, environmental tolerance, evolutionary patterns this curious ichnotaxon. Analysis 68 specimens permitted identification five ichnospecies Brittany: cf. bisagitta , B. bisagittula...
We examined how interactions among the three dominant species of Macoma balthica community in St-Lawrence estuary influence net biogeochemical fluxes and composition sedimentary bacterial community. manipulated biodiversity via combinations balthica, Mya arenaria, Nereis virens sediment microcosms containing sieved homogenized tidal-flat sediment. Each combination was adjusted to similar total biovolumes situ animal densities. Compared treatments with single species, which were also...
Abstract There is growing evidence that a substantial fraction of the dissolved organic and inorganic carbon (DOC DIC) particulate (POC) can be exported from mangroves to ocean. Yet our understanding C fluxes in mangrove forests limited only few regional studies exclude world's longest sediment dispersal system connected Amazon River. The present study aims at (1) examining tidal fluctuations DOC, POC, DIC; their isotopes; optical properties such as chromophoric matter (CDOM) (2) estimating...
The iconic picture of Arctic marine ecosystems shows an intense pulse biological productivity around the spring bloom that is sustained while fresh organic matter (OM) available, after which ecosystem activity declines to basal levels in autumn and winter. We investigated seasonality benthic biogeochemical cycling at three stations a high fjord has recently lost much its seasonal ice-cover. Unlike observations from other locations, we find little sediment community respiration bioturbation...
Abstract Migrating mudbanks are characteristic features of the vast Amazon-Guianas coastline along Northeastern South America. As illustrated by sites in French Guiana, consolidating mudflats that periodically transition to mangrove forest permeated extensive crustacean burrow systems, sometimes isolation but more often close association with morpho-sedimentary structures such as tidal pools and channels. Burrow critical growth. In this study, we evaluated ways which burrows act complex...
Particle mixing and irrigation of the seabed by benthic fauna (bioturbation) have major impacts on ecosystem functions such as remineralization organic matter sediment-water exchange. As a tribute to Prof. Gaston Desrosiers Nereis Park association, eighteen laboratories carried out collaborative experiment acquire global snapshot particle reworking polychaete Hediste diversicolor at 16 sites surrounding Northern Atlantic. Organisms soft sediments were collected during May – July different...
Photogrammetry is an old remote sensing technique that has undergone significant new developments related to the emergence of computer vision algorithms, notably workflow called Structure-from-Motion (SfM photogrammetry). These innovations facilitate utilization this by non-specialists. SfM photogrammetry now enables production high-resolution morphometric 3D models and derived products such as digital surface (DSMs) orthophotographs. We conducted three SfM-photogrammetric experiments, in...
Bioindicators assess the mangroves ecological state according to types of pressures but they differ with ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within low human-impacted in French Guiana (South America) response sediment variables various distances main city. Contaminant’s concentrations differed among stations, remained below toxicity guidelines. Meiofauna (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s...