A5007438109- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Protist diversity and phylogeny
- Marine Toxins and Detection Methods
- Environmental DNA in Biodiversity Studies
- Parasite Biology and Host Interactions
- Diatoms and Algae Research
- Geology and Paleoclimatology Research
- Seaweed-derived Bioactive Compounds
Centre National de la Recherche Scientifique
2021-2024
Université du littoral côte d'opale
2021-2024
Laboratoire d’Océanologie et de Géosciences
2021-2024
Université de Lille
2021-2024
The effect of environmental change in structuring the phytoplankton communities coastal waters Eastern English Channel was investigated by applying a trait-based approach on two decades (1996-2019) monitoring diatoms and Phaeocystis . We show that species richness an unbalanced nutrient supply context influenced wind-driven processes, ecological specialization for dissolved inorganic phosphorous, temporal niche differentiation, competition-defense and/or growth-defense trade-off, coexistence...
While ecological deterministic processes are conducive to modeling, stochastic ones far less predictable. Understanding the overall assembly of phytoplankton is critical in tracking and predicting future changes.
Although eutrophication induced by anthropogenic nutrient enrichment is a driver of shifts in community composition and eventually threat to marine biodiversity, the causes consequences on ecosystem functioning remain greatly unknown. In this study, applying trait-based approach measuring niche breadth diatoms copepods, drivers underlying mechanisms seasonal species succession these ecological communities coastal system dominated spring Phaeocystis blooms were explored. It suggested that...
Temporal dynamics of Syndiniales Group II were investigated combining 18S rDNA amplicon sequencing and direct microscopy counts (fluorescence in situ hybridization-tyramide signal amplification [FISH-TSA]) during 5 years. The study was undertaken meso-eutrophic coastal ecosystem, dominated by diatoms, the haptophyte Phaeocystis globosa exhibiting relatively low dinoflagellate abundance (max. 18.6 × 103 cells L-1 ). Consistent temporal patterns observed over consecutive years highlighting...
Abstract Phytoplankton and bacteria form the foundation of marine food webs. While most studies on phytoplankton bloom influence dynamics focus diatom‐dominated blooms due to their global ecological significance, it is unclear if similar patterns extend other species that compete with diatoms like Phaeocystis spp. This study aimed contribute understanding associations between in a temperate ecosystem. For this, we studied bacteria, combining 16S metabarcoding, microscopy, flow cytometry over...
Turbulence is one of the least investigated environmental factors impacting ecophysiology phytoplankton, both at community and individual species level. Here, we investigated, for first time, effect a turbulence gradient (Reynolds number, from Reλ = 0 to 360) on two marine diatom Pseudo-nitzschia their associated bacterial communities under laboratory conditions. Cell abundance, domoic acid (DA) production, chain formation, Chl content P. fraudulenta multiseries were higher intermediate (Reλ...