A5023131702- Marine and fisheries research
- Fish Ecology and Management Studies
- Reproductive biology and impacts on aquatic species
- Fish Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Marine animal studies overview
- Aquaculture Nutrition and Growth
- Animal Behavior and Reproduction
- Arctic and Antarctic ice dynamics
- Isotope Analysis in Ecology
- Meat and Animal Product Quality
- Animal Ecology and Behavior Studies
- Food Industry and Aquatic Biology
- Proteins in Food Systems
- Milk Quality and Mastitis in Dairy Cows
- Probiotics and Fermented Foods
- Parasite Biology and Host Interactions
- Animal Nutrition and Physiology
- Physiological and biochemical adaptations
- Aquaculture disease management and microbiota
- Genetic and phenotypic traits in livestock
- Stress Responses and Cortisol
Université de Pau et des Pays de l'Adour
2019-2024
Ecologie Comportementale et Biologie des Populations de Poissons
2017-2024
Nutrition Metabolism Aquaculture
2018-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021-2024
Ecosystèmes, Biodiversité, Evolution
2018-2024
Tour du Valat
2018-2022
Institut Agro Rennes-Angers
2021-2022
University of California, Berkeley
2020-2021
Agriculture and Agri-Food Canada
2013
This study assesses whether the effective number of breeders (Nb ) can be estimated using a time and cost-effective protocol genetic sibship reconstruction from single sample young-of-the-year (YOY) for purposes Atlantic salmon Salmo salar population monitoring. Nb was 10 consecutive reproductive seasons S. in River Nivelle, small located at rear-edge species distribution area France, chronically under its conservation limit subjected to anthropogenic environmental changes. Subsampling real...
Abstract Understanding spatio-temporal dynamics of glass eel recruitment is necessary to characterize population status and the stock future elvers. Despite numerous studies that have characterized across Europe, multiple systems along Mediterranean coasts need a deeper look. We built Bayesian State-Space Model investigate temporal variations in Rhône delta (France). The model was suited address spatial heterogeneity due complexity this system constituted by entrance pathways. Over 13 years,...
Migratory fishes cross or settle in several environments potentially polluted. Psychiatric drugs, which represent one growing pollution and are found discharges from waste-water treatment plants, may alter individual behaviors. Here, we assessed behavioral alterations the upstream migratory behavior of Anguilla anguilla caused by diazepam, an anxiolytic. We monitored swimming activity, behavior, boldness to assess whether diazepam impacts them not. Our 7-day follow-up allowed us test...
Dispersal and shared environmental conditions can both synchronize the dynamics of local populations, but disentangling their relative influence on is challenging. We used a Bayesian approach to estimate synchrony metapopulation Atlantic salmon (Salmo salar) composed 18 populations in Brittany, France, including 24-year time series abundances juveniles. estimated spatial at regional scale over study period. found strong despite spatiotemporal variability abundance then explored drivers...
Abstract Spatial aggregation within a population is widespread phenomenon which may both exacerbate local competition and the stochastic effect of environmental perturbations. In particular, spatial nests strongly affect recruitment hence dynamics. Although negative density on has often been theoretically extended to dynamics, very few studies have demonstrated whole recruitment. Using long‐term survey small Atlantic salmon population, we tested whether accounting for stock important or not...
Abstract Effective conservation requires monitoring and pro‐active risk assessments. We studied the effects of at‐sea mortality events (ASMEs) in marine mammals over two decades (1990–2012) built a risk‐based indicator for European Union's Marine Strategy Framework Directive. Strandings harbor porpoises ( Phocoena phocoena ), short‐beaked common dolphins Delphinus delphis striped Stenella coeruleoalba ) along French coastlines were analyzed using Extreme Value Theory (EVT). EVT...
In the context of wildlife population declines, increasing computer power over last 20 years allowed managers to apply advanced statistical techniques that has improved size estimates. However, respecting assumptions models consider probability detection, such as N -mixture models, requires implementation a rigorous monitoring protocol with several replicate survey occasions and no double counting are hardly adaptable field conditions. When logistical, economic ecological constraints too...
A bstract During the reproductive season, animals have to manage both their energetic budget and gamete stock. In particular, for semelparous capital breeders with determinate fecundity no parental care other than gametic investment, depletion of stock must match stock, so that individuals get exhausted just after last egg is laid fertilized. Although these budgets are managed continuously, monitoring dynamics mating acts energy expenditure at a fine temporal scale in wild challenging. This...
The European eel (Anguilla anguilla) juvenile stage exhibits facultative estuarine migration; the causes of this behavior are yet unknown, but it may have an impact on population's fate by altering sex ratio. Recent studies highlighted potential stress-related issues in glass eels settling estuaries, however studying stress response small organisms requires sensitive, accurate and precise analytical methods. aims present study (i) to develop a whole-body Liquid Chromatography-Mass...
Numerous conservation programs are now targeting the mitigation or reduction of anthropogenic pressures to restore biodiversity. The aspirational and ambitious objectives underlying these need translate into timely management actions for maximum impact, a process whose first steps assume efficient monitoring appropriate indicators. Capitalizing on well-coordinated stranding network, we developed further risk-based indicator informing indirectly resulting in at-sea-mortality events small...
Abstract Since the 1980s, European eel ( Anguilla anguilla ) has declined by over 90% in recruitment across its and North African distribution area. This diadromous fish spawns at sea migrates into continental waters, where it grows for three to more than 30 years, depending on habitat conditions location. During their growth, different use tactics can locally influence life‐history traits of eels, including survival rates. Thus, spatio‐temporal dimension this species is crucial management....
We assessed the effects of sexual maturity on space use in Atlantic salmon (Salmo salar) parr as facultative early maturation enables us to work individuals belonging same cohort. monitored 40 1-year-old males natura throughout a breeding season. First, mature covered longer distances (absolute and upstream) located within broader home ranges than immature parr. Second, also generated higher interindividual variability use. Finally, exhibited probability association with likely sites...
During the reproductive season, animals have to manage both their energetic budget and gamete stock. In particular, for semelparous capital breeders with determinate fecundity no parental care other than gametic investment, depletion of stock must match stock, so that individuals get exhausted just after last egg is laid fertilized. Although these budgets are managed continuously, monitoring dynamics mating acts energy expenditure at a fine temporal scale in wild challenging. This study...
Migration speed can have important evolutionary consequences as it affect the timing of arrival, remaining energy reserves, and habitat choice. Environmental conditions individual phenotypic traits impact migration individuals. In this way, estimating is particular importance, especially for species under strong management strategies colonizing highly diversified habitats, case European eel. However, glass eels, which life stage when eels colonize continental presents challenges due to...