A5072018600- Coral and Marine Ecosystems Studies
- Microbial Community Ecology and Physiology
- Marine Biology and Ecology Research
- Ichthyology and Marine Biology
- Marine Sponges and Natural Products
- Microplastics and Plastic Pollution
- Marine and fisheries research
- Recycling and Waste Management Techniques
- Marine Bivalve and Aquaculture Studies
- Isotope Analysis in Ecology
- Genomics and Phylogenetic Studies
- Marine and coastal plant biology
- Environmental DNA in Biodiversity Studies
- Aquaculture disease management and microbiota
- Marine and coastal ecosystems
- Cephalopods and Marine Biology
- Marine Biology and Environmental Chemistry
- Offshore Engineering and Technologies
- Wildlife-Road Interactions and Conservation
- Electrochemical Analysis and Applications
- Advanced Chemical Sensor Technologies
- Identification and Quantification in Food
- Methane Hydrates and Related Phenomena
- Vibrio bacteria research studies
- Protist diversity and phylogeny
Laboratoire d'Ecogéochimie des Environnements Benthiques
2012-2025
Sorbonne Université
2012-2025
Centre National de la Recherche Scientifique
2012-2025
Observatoire Océanologique de Banyuls-sur-Mer
2024
Sorbonne Paris Cité
2020
Plastic contamination is now recognized as one of the most serious environmental issues for oceans. Both macro- and microplastic debris are accumulating in surface deep waters. However, little known about their impact on marine ecosystems especially deep-sea reefs built by emblematic cold-water corals. The aim this study was to investigate whether plastics affected growth, feeding behaviour main engineer species, Lophelia pertusa. Our experiments showed that both micro- macroplastics...
Disturbance strongly impacts patterns of community diversity, yet the shape diversity-disturbance relationship remains a matter debate. The topic has been interest in theoretical ecology for decades as it practical implications understanding ecosystem services nature. One these processes is remineralization organic by microorganisms coastal marine sediments, which are periodically impacted disturbances across sediment-water interface. Here we set up an experiment to test hypothesis that...
Cold-water corals are threatened by global warming, especially in the Mediterranean Sea where they live close to their upper known thermal limit (i.e. 13°C), yet response rising temperatures is not well known. Here, temperature effects on Lophelia pertusa and Madrepora oculata holobionts host its associated microbiome) were investigated. We found that at warmer seawater (+2°C), L. showed a modification of microbiome prior change behaviour, leading lower energy reserves skeletal growth,...
The European Marine Omics Biodiversity Observation Network (EMO BON) is an initiative of the Biological Resource Centre (EMBRC) to establish a persistent genomic observatory among designated coastal marine sites, sharing same protocols for sampling and data curation. Environmental samples are collected from water column, at some soft sediments hard substrates (Autonomous Reef Monitoring Structures - ARMS), together with set mandatory discretionary metadata (including Essential Ocean...
The European Marine Omics Biodiversity Observation Network (EMO BON) is an initiative of the Biological Resource Centre (EMBRC) to establish a persistent genomic observatory amongst designated coastal marine sites, sharing same protocols for sampling and data curation. Environmental samples are collected from water column and, at some soft sediments hard substrates (Autonomous Reef Monitoring Structures - ARMS), together with set mandatory discretionary metadata (including Essential Ocean...
Reef-building cold-water corals act as ecosystem engineers in the deep-sea, supporting a rich biodiversity and various services, including fisheries resources, carbon sink, paleoclimate archives biomedical compounds. The study protection of these ecosystems is an important pillar strategies for assessing ecological status conservation associated to deep reef habitats, promoted by national international conventions (IUCN, Habitat Directive, Marine Framework Directive…).In submarine canyons,...
Research on the biology and ecology of cold-water corals (CWCs) is still in its infancy. The growth patterns CWCs their natural environments are poorly known. Growth rate investigations these deep-sea reef builder species needed to predict recovery times following damage ecosystems. This study investigates a new approach for analysing CWC rate, suitable situ application. Lophelia pertusa Madrepora oculata (Scleractinian) were collected from Lacaze-Duthiers canyon northwestern Mediterranean...
Microbes play a crucial role in sustaining the coral holobiont's functions and particular under pressure of environmental stressors. The effect changing environment on health is now major branch research that relies heavily aquarium experiments. However, captivity microbiome remains poorly known. Here we show different cold-water corals species have responses to captivity. For both DNA RNA fraction, Madrepora oculata bacterial communities were maintained for at least 6 months rearing, while...
Different cold-water coral (CWC) species harbour distinct microbial communities and the community composition is thought to be linked ecological strategies of host. Here we test whether diet shapes bacterial associated with CWC. We compared microbiomes two common CWC in aquaria, Lophelia pertusa Madrepora oculata, when they were either starved, or fed respectively a carnivorous diet, different herbivorous diets, mix 3. targeted both standing stock (16S rDNA) active fraction rRNA) showed that...
Cold-water coral (CWC) ecosystems provide niches and nurseries for many deep-sea species. Lophelia pertusa Madrepora oculata, two cosmopolitan species forming three dimensional structures, are found in cold waters under specific hydrological regimes that food reoxygenation. There is now more information about their feeding, growth associated microbiome, however, little known the influence of habitat on physiology, or composition bacterial community. The goal this study was to test if L. M....
Abstract Wood debris on the ocean floor harbor flourishing communities, which include invertebrate taxa thriving in sulfide-rich habitats belonging to hydrothermal vent and methane seep deep-sea lineages. The formation of sulfidic niches from digested wood material produced by woodborers has been known for a long time, but temporal dynamics sulfide ranges encountered falls remains unknown. Here, we show that are converted into hotpots, before colonization xylophagaid bivalves. Less than...
The description of a rare biosphere within microbial communities has created great interest because microbes play fundamental role in the functioning all ecosystems on earth. Despite recent progress understanding ecology biosphere, concept itself is still discussed, and questions remain. Here, we target seed bank compartment assess level rarity at which micro-organisms are able to colonize an ecosystem investigate whether species functionally redundant. Using original experimental design...
Cold-water corals form vast reefs that are highly valuable habitats for diverse deep-sea communities. However, as the deep ocean is warming, it essential to assess resilience of cold-water future conditions. The effects elevated temperatures on coral Lophelia pertusa (now named Desmophyllum pertusum) from north-east Atlantic Ocean were experimentally investigated at holobiont level, host, and its microbiome. We show temperature increases + 3 5 °C, L. exhibits significant mortality...
In submarine canyon sediments, bacteria and nematodes dominate the benthic biomass play a key role in nutrient cycling energy transfer. The diversity of these communities remains, however, poorly studied. This work aims at describing composition nematode Lacaze-Duthiers north-western Mediterranean Sea. We targeted three sediment depths for two consecutive years investigated using nuclear markers (18S rRNA 16S genes). High throughput sequencing combined to maximal information coefficient...
<title>Abstract</title> Cold-water corals form vast reefs that are highly valuable habitats for diverse deep-sea communities. The deep ocean is, however, warming and it’s therefore essential to assess the resilience of cold-water future conditions. Here we investigate effects elevated temperatures on coral <italic>Lophelia pertusa</italic> (now named <italic>Desmophyllum pertusum</italic>) from north east Atlantic Ocean at holobiont level, host its microbiome. We show temperature increases +...