A5005436987- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Microbial Community Ecology and Physiology
- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Diatoms and Algae Research
- Ocean Acidification Effects and Responses
- Geochemistry and Elemental Analysis
- Wastewater Treatment and Nitrogen Removal
- Hydraulic Fracturing and Reservoir Analysis
- Gene Regulatory Network Analysis
- Groundwater and Isotope Geochemistry
- Methane Hydrates and Related Phenomena
- Aquaculture disease management and microbiota
- Evolutionary Game Theory and Cooperation
- Evolution and Genetic Dynamics
- Marine and coastal plant biology
- Geological formations and processes
- Aquatic Ecosystems and Phytoplankton Dynamics
Scientific Centre of Monaco
2018-2024
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2019-2022
Max Planck Institute for Marine Microbiology
2015
King Abdullah University of Science and Technology
2014
In vivo measurements of [Ca 2+ ] and [CO 3 2− indicate biological control carbonate chemistry at site calcification in corals.
Abstract Identifying and quantifying nitrogen pools is essential for understanding the cycle in aquatic ecosystems. The ubiquitous diatoms represent an overlooked nitrate pool as they can accumulate intracellularly utilize it assimilation, dissipation of excess photosynthetic energy, Dissimilatory Nitrate Reduction to Ammonium (DNRA). Here, we document global co-occurrence intracellular phototrophic microbial communities freshwater ( n = 69), coastal 44), open marine 4) habitats. Diatom...
The vertical distribution of oxygen concentrations in sediment porewaters and fluxes across the sediment-water interface are key variables to assess benthic redox conditions quantify seafloor community respiration. Oxygen serve as proxies for activity organic matter remineralization rates. Measurements consumption also recommended by International Seabed Authority (ISA) establish ecological baselines identify effects mining-related impacts (e.g., ISBA/25/LTC/6/Rev.2 ISBA/27/C/11). This...
Here we present the carbon isotopic composition of dissolved inorganic (DIC) and sulfur sulfate, along with changes in sulfate concentrations, pore fluid collected from a series sediment cores located depth transect on Iberian Margin. We use these data to explore coupling microbial reduction (MSR) organic oxidation uppermost (up nine meters) sediment. argue that combined composition, DIC respectively, sedimentary fluids, viewed through δ 13 C vs. 34 S SO4 cross plot, reveals significant...
Abstract Coral reefs, the largest bioconstruction on Earth, are formed by calcium carbonate skeletons of corals. skeleton formation commonly referred to as calcification occurs in a specific compartment, extracellular calcifying medium (ECM), located between aboral ectoderm and skeleton. Calcification models often assume direct link surrounding seawater ECM. However, ECM is separated from several tissue layers cœlenteron, which contains cœlenteric fluid found both polyps cœnosarc (tissue...
The Arabian Gulf, surrounded by deserts, is an ideal marine basin to study the effects of nutrient input from dust on primary productivity. We studied microbial community composition water column and sediment using 16S r-RNA gene sequencing, activity photosynthetic microorganisms pigment analysis microsensors measurements in February October 2013 2014. collected samples three stations (1CD, 2CD & 3CD) along inshore-offshore transect extending Doha middle gulf. Our results showed that...