A5061662597- Aquatic Ecosystems and Phytoplankton Dynamics
- Soil and Water Nutrient Dynamics
- Freshwater macroinvertebrate diversity and ecology
- Soil erosion and sediment transport
- Aquatic Invertebrate Ecology and Behavior
- Urban Stormwater Management Solutions
- Aeolian processes and effects
- Constructed Wetlands for Wastewater Treatment
- Hydrology and Sediment Transport Processes
- Toxic Organic Pollutants Impact
- Wastewater Treatment and Nitrogen Removal
- Microbial Community Ecology and Physiology
- Hydrology and Watershed Management Studies
- Coastal wetland ecosystem dynamics
- Mediterranean and Iberian flora and fauna
- Geological formations and processes
- Marine Biology and Ecology Research
- Water Treatment and Disinfection
- Fish Ecology and Management Studies
- Mercury impact and mitigation studies
- Microplastics and Plastic Pollution
- Ecology and biodiversity studies
- Microbial bioremediation and biosurfactants
- Invertebrate Taxonomy and Ecology
- Genomics and Phylogenetic Studies
Laboratoire National Henri Becquerel
2019-2024
Laboratoire National de Santé
2022
Électricité de France (France)
2015-2018
Laboratoire d'Hydraulique Saint-Venant
2016
Grand Valley State University
2012-2016
Wright State University
2009-2014
Stress Environnementaux et Biosurveillance des Milieux Aquatiques
2013
Université Claude Bernard Lyon 1
2004-2009
Centre National de la Recherche Scientifique
2004-2009
Microorganisms are vital in mediating the earth's biogeochemical cycles; yet, despite our rapidly increasing ability to explore complex environmental microbial communities, relationship between community structure and ecosystem processes remains poorly understood. Here, we address a fundamental unanswered question ecology: 'When do need understand accurately predict function?' We present statistical analysis investigating value of data independently combination for explaining rates carbon...
Summary 1. The hyporheic zone plays a key role in hydrological exchange and biogeochemical processes streambed sediments. clogging of sediments caused by the deposition particles bed streams rivers can decrease sediment permeability hence greatly affect microbial processes. 2. main objective this study was to determine influence on three French (the Usses, Drôme Isère). In each river, abundance activity were studied at depths (10, 30 50 cm) one unclogged (high porosity) clogged site (low...
Summary 1. Invertebrate bioturbation can strongly affect water‐sediment exchanges in aquatic ecosystems. The objective of this study was to quantify the influence invertebrates on physical characteristics an infiltration system clogged with fine sediment. 2. Two taxa (chironomids and tubificids) different activities were studied experimental slow columns filled sand gravel a 2 cm layer sediment at surface. We measured effects each taxon separately combined hydraulic head, water mobility...
Summary The hyporheic zone is a pivotal environment for biogeochemical processes in riverine ecosystems. However, the responses of microbial assemblage structure and activity to environmental variables remain poorly understood. objective this study was determine influence characteristics on assemblages three F rench rivers ( U sses, I sère D rôme). For each river, (assemblage composition abundance) were measured at sites with contrasting (e.g. effective streambed porosity, oxygen nutrient...
Stormwater sediments that accumulate at the surface of infiltration basins reduce efficiencies by physical clogging and produce anoxification in subsurface. The present study aimed to quantify influence stormwater sediment origin (urban vs industrial catchments) occurrence bioturbators (tubificid worms) on hydraulic functioning, aerobic/anaerobic processes, pollutant dynamics systems. In laboratory columns, effects tubificids were examined conductivity, microbial releases. Significant...
Invasive species may impact biotic community structure, ecosystem processes, and associated goods services. Their be especially strong when they also serve as engineers (i.e. organisms affecting the physical habitat resources for other species). Dreissenid mussels fill both these roles, having invaded Laurentian Great Lakes in late 1980s, by altering nutrient fluxes influencing microbial food web through direct release excretion of feces pseudo‐feces at water–sediment interface. We conducted...
Aluminum sulfate (alum) has been applied in hundreds of eutrophic lakes and wetlands worldwide for >4 decades to inactivate internal P loading reduce potentially toxic cyanobacteria blooms. However, the ecological effects alum additions on benthic invertebrate activities feedback effect bioturbation effectiveness binding are not well known. We conducted a microcosm experiment assess how functional traits bioturbating invertebrates (chironomid larvae tubificid oligochaetes) interact with...
Abstract Bioturbating invertebrates play key roles in nutrient recycling from sediments to the water column most lentic ecosystems. Nevertheless, role of bioturbating fauna on cycling depends complex interactions between their bioturbation modes and both sedimentary conditions microbial activity occurring inside sediments. This study aims evaluate effect different by two invertebrate species (tubificid worm Tubifex tubifex chironomid larvae Chironomus plumosus ), release nutrients (NH 4 + ,...
The quagga mussel ( Dreissena rostriformis bugensis ) was first recorded in France the Moselle River 2011. objective of this study to obtain a better understanding species’ demographic and genetic structure ten years after its observation. To do this, we examined (i) relative abundance/biomass (compared with zebra polymorpha ), (ii) population structure, (iii) along navigable stretch during four sampling events conducted between May 2021 2022. results indicate that, while mussels are still...