A5079811928- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Aquaculture disease management and microbiota
- Ocean Acidification Effects and Responses
- Animal Behavior and Reproduction
- Marine Bivalve and Aquaculture Studies
- High Altitude and Hypoxia
- Environmental Toxicology and Ecotoxicology
- Fish biology, ecology, and behavior
- Neuroscience of respiration and sleep
- Marine animal studies overview
- Heart Rate Variability and Autonomic Control
- Meat and Animal Product Quality
- Neurobiology and Insect Physiology Research
- Acute Myeloid Leukemia Research
- Reproductive biology and impacts on aquatic species
- Atrial Fibrillation Management and Outcomes
- Fish Biology and Ecology Studies
- Water Quality Monitoring Technologies
- Agricultural risk and resilience
- Myeloproliferative Neoplasms: Diagnosis and Treatment
- Biomimetic flight and propulsion mechanisms
- Isotope Analysis in Ecology
Centre National de la Recherche Scientifique
2016-2025
Institut de Recherche pour le Développement
2016-2025
Ifremer
2016-2025
Marine Biodiversity Exploitation and Conservation
2016-2025
Université de Montpellier
2016-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2023-2025
Universidade Federal de São Carlos
2015-2024
John Wiley & Sons (United Kingdom)
2024
Fisheries Society of the British Isles
2024
Cardiff University
2024
For animals, being a member of group provides various advantages, such as reduced vulnerability to predators, increased foraging opportunities and energetic costs locomotion. In moving groups fish schools, there are benefits membership for trailing individuals, who can reduce the cost movement by exploiting flow patterns generated individuals swimming ahead them. However, whether positions relative closest neighbours (e.g. ahead, sided side or behind) modulate individual is still unknown....
The schooling behaviour of fish is great biological importance, playing a crucial role in the foraging and predator avoidance numerous species. extent to which physiological performance traits affect spatial positioning individual within schools completely unknown. Schools juvenile mullet Liza aurata were filmed at three swim speeds tunnel, with one focal from each school then also measured for standard metabolic rate (SMR), maximal (MMR), aerobic scope (AS) maximum speed. At faster speeds,...
Hypoxia is a common occurrence in aquatic habitats, and it becoming an increasingly frequent widespread environmental perturbation, primarily as the result of anthropogenic nutrient enrichment climate change. An in-depth understanding hypoxia tolerance fishes, how this varies among individuals species, required to make accurate predictions future ecological impacts provide better information for conservation fisheries management. The critical oxygen level (Pcrit) has been widely used...
ABSTRACT Interest in the measurement of metabolic rates is growing rapidly, because importance metabolism advancing our understanding organismal physiology, behaviour, evolution and responses to environmental change. The study aquatic animals undergoing an especially pronounced expansion, with more researchers utilising intermittent-flow respirometry as a research tool than ever before. Aquatic measures rate oxygen uptake proxy for rate, technique has numerous strengths use animals, allowing...
This paper provides a synthesis of results that have emerged from recent modeling studies the potential sensitivity U.S. regional ozone (O3) concentrations to global climate change (ca. 2050). research has been carried out under auspices an ongoing Environmental Protection Agency (EPA) assessment effort increase scientific understanding multiple complex interactions among climate, emissions, atmospheric chemistry, and air quality. The ultimate goal is enhance ability quality managers...
1. Individuals of the same species often exhibit consistent differences in metabolic rate, but effects such on ecologically important behaviours remain largely unknown. In particular, it is unclear whether there a cause-and-effect relationship between rate and tendency to take risks while foraging. with higher rates may need greater foraging obtain additional food required satisfy their energy requirements. Such could be exacerbated by deprivation if demand also causes mass loss hunger. 2....
We exploited the inherent individual diversity in swimming performance of rainbow trout Oncorhynchus mykiss to investigate hypothesis that maximum cardiac is linked active metabolic rate (AMR) and critical speed (U crit). Six hundred juveniles (body mass approximately 150 g) were screened using a challenge 1.2 m s(-1) identify 'poor swimmers' 'good swimmers', i.e. first last 60 fish fatigue, respectively. These 120 individually tagged then reared common tanks for 9 months, where they grew at...
Summary 1. Inter‐individual variation in metabolic rate exists a wide range of taxa. While this appears to be linked numerous aspects animal behaviour and personality, the ecological relevance these relationships is not understood. The behavioural response individual fish acute aquatic hypoxia, for example, could related via influences on oxygen demand or willingness take risks. Individuals with higher rates show greater hypoxia‐associated increases activity that allow them locate areas...
The Root effect is a pH-dependent reduction in hemoglobin-O2 carrying capacity. Specific to ray-finned fishes, the has been ascribed specialized roles retinal oxygenation and swimbladder inflation. We report that when rainbow trout are exposed elevated water carbon dioxide (CO2), red muscle partial pressure of oxygen (PO2) increases by 65%--evidence hemoglobins enhance general tissue O2 delivery during acidotic stress. Inhibiting carbonic anhydrase (CA) plasma abolished this effect. argue CA...
Some recent modelling papers projecting smaller fish sizes and catches in a warmer future are based on erroneous assumptions regarding (i) the scaling of gills with body mass (ii) energetic cost 'maintenance'. Assumption posits that insurmountable geometric constraints prevent respiratory surface areas from growing as fast volume. It is argued these explain allometric energy metabolism, whereby larger fishes have relatively lower mass-specific metabolic rates. concludes when reach certain...
Studies of inter-individual variation in fish swimming performance may provide insight into how selection has influenced diversity phenotypic traits. We investigated individual and short-term repeatability by wild European sea bass a constant acceleration test (CAT). Fish were challenged with four consecutive CATs 5 min rest between trials. measured maximum anaerobic speed at exhaustion (U(CAT)), gait transition from steady aerobic to unsteady (U(gt)), routine metabolic rate (RMR), post-CAT...
How ectothermic animals will cope with global warming is a critical determinant of the ecological impacts climate change. There has been extensive study upper thermal tolerance limits among fish species but how intraspecific variation in may be affected by habitat characteristics and evolutionary history not considered. Intraspecific primary vulnerability to change, implications for patterns ongoing warming. Using published maximum (CTmax) data on 203 species, we found that varies according...
Aerobic metabolism generates 15-20 times more energy (ATP) than anaerobic metabolism, which is crucial in maintaining budgets animals, fueling activity, growth and reproduction. For ectothermic water-breathers such as fishes, low dissolved oxygen may limit uptake hence aerobic metabolism. Here, we assess, within a phylogenetic context, how abiotic biotic drivers explain the variation hypoxia tolerance observed fishes. To do so, assembled database of tolerance, measured critical tensions...
SUMMARY Inter-individual variation in physiological performance traits, which is stable over time, can be of potential ecological and evolutionary significance. The fish escape response interesting this regard because it a trait for inter-individual may determine individual survival. temporal stability such is, however, largely unexplored. We quantified various components the population European sea bass (Dicentrarchus labrax), considering both non-locomotor (responsiveness latency)...
SUMMARY The specific growth rate (SGR) of a cohort 2000 tagged juvenile European sea bass was measured in common tank, during two sequential cycles comprising three-weeks feed deprivation followed by ad libitum re-feeding. After correction for initial size at age as fork length, there direct correlation between negative SGR (rate mass loss) and positive compensatory growth) re-feeding (Spearman rank R=0.388, P=0.000002). Following period rearing under standard culture conditions, individuals...