A5076989218- Marine Bivalve and Aquaculture Studies
- Aquaculture Nutrition and Growth
- Ocean Acidification Effects and Responses
- Physiological and biochemical adaptations
- Aquaculture disease management and microbiota
- Marine and fisheries research
- Parasite Biology and Host Interactions
- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Marine Biology and Environmental Chemistry
- Marine Biology and Ecology Research
- Environmental Toxicology and Ecotoxicology
- Invertebrate Immune Response Mechanisms
- Reproductive biology and impacts on aquatic species
- Algal biology and biofuel production
- Aquatic Invertebrate Ecology and Behavior
- Calcium Carbonate Crystallization and Inhibition
- Child Nutrition and Water Access
- Viral gastroenteritis research and epidemiology
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Maritime Transport Emissions and Efficiency
- Vibrio bacteria research studies
- Meat and Animal Product Quality
- Hepatitis Viruses Studies and Epidemiology
Laboratoire des Sciences de l'Environnement Marin
2015-2025
Université de Bretagne Occidentale
2015-2025
Ifremer
2015-2025
Institut de Recherche pour le Développement
2015-2025
Centre National de la Recherche Scientifique
2015-2025
Institut Universitaire Européen de la Mer
2014-2024
Brest State A.S. Pushkin University
2021
Vancouver Coastal Health
2006-2016
Conseil Régional du Languedoc-Roussillon
2011-2013
Université du Québec à Rimouski
2007
AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 2:215-237 (2012) - DOI: https://doi.org/10.3354/aei00041 FEATURE ARTICLEMass mortalities of Pacific oysters Crassostrea gigas reflect infectious diseases and vary with farming practices in Mediterranean Thau lagoon, France Fabrice Pernet1,*, Jean Barret1, Patrik Le Gall1, Charlotte Corporeau2, Lionel...
We compared lipid dynamics and the physiological responses of blue mussels Mytilus edulis, a cold-adapted species, oysters Crassostrea virginica, warmer-water during simulated overwintering passage to spring conditions. To simulate overwintering, animals were held at 0 degrees C, 4 C 9 for 3 months then gradually brought maintained 20 5 weeks spring-summer Changes in class fatty acid composition related clearance rate oxygen consumption. found major differences between species triglyceride...
AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 3:257-273 (2013) - DOI: https://doi.org/10.3354/aei00070 Temperature influence on pathogen transmission and subsequent mortalities in juvenile Pacific oysters Crassostrea gigas Bruno Petton1, Fabrice Pernet1,2,*, René Robert1, Pierre Boudry1 1Ifremer, UMR LEMAR 6539-Technopole de Brest-Iroise, BP 70...
BackgroundDietary exposure to the cyanotoxin BMAA is suspected be cause of amyotrophic lateral sclerosis in Western Pacific Islands. In Europe and North America, this toxin has been identified marine environment clusters but, date, only few dietary exposures have described. ObjectivesWe aimed at identifying cluster(s) Hérault district, a coastal district from Southern France, search, area(s), for existence potential source BMAA. MethodsA spatio-temporal cluster analysis was performed...
AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 6:205-222 (2015) - DOI: https://doi.org/10.3354/aei00125 Factors influencing disease-induced mortality of Pacific oysters Crassostrea gigas Bruno Petton1, Pierre Boudry2, Marianne Alunno-Bruscia1, Fabrice Pernet2,* 1Ifremer, UMR LEMAR 6539 (UBO/CNRS/IRD/Ifremer), 11 presqu’île du Vivier, 29840...
Background Bacterial infections are common in bivalve larvae and can lead to significant mortality, notably hatcheries. Numerous studies have identified the pathogenic bacteria involved such mortalities, but physiological changes associated with pathogen exposure at larval stage still poorly understood. In present study, we used an integrative approach including physiological, enzymatic, biochemical, molecular analyses investigate energy metabolism, lipid remodelling, cellular stress, immune...
Although spatial studies of diseases on land have a long history, far fewer been made aquatic diseases. Here, we present the first large-scale, high-resolution and temporal representation mass mortality phenomenon cause by Ostreid herpesvirus (OsHV-1) that has affected oysters (Crassostrea gigas) every year since 2008, in relation to their energetic reserves quality food. Disease was investigated healthy deployed at 106 locations Thau Mediterranean lagoon before start epizootic spring 2011....
Summary Infectious agents such as the bacteria Vibrio aestuarianus or Ostreid herpesvirus 1 have been repeatedly associated with dramatic disease outbreaks of Crassostrea gigas beds in Europe. Beside roles played by these pathogens, microbial infections C . may derive from contribution a larger number microorganisms than previously thought, according to an emerging view supporting polymicrobial nature bivalve diseases. In this study, communities large samples collected during recurrent...
Abstract Determining the lipid content and fatty acid (FA) composition of aquatic organisms has been major interest in trophic ecology, aquaculture, nutrition for over half a century. Although protocols analysis are well-described, their application to sciences often requires modifications adapt field conditions sample type. Here, we present current state knowledge methods dedicated both marine freshwater analyses, from sampling data treatment. We review: (i) preservation, storage transport...
Studies on the impact of ocean acidification marine organisms involve exposing to future scenarios, which has limited relevance for coastal calcifiers living in a mosaic habitats. Identification tipping points beyond detrimental effects are observed is widely generalizable proxy susceptibility at population level. This approach handful studies that focus only few macro-physiological traits, thus overlooking whole organism response. Here we develop framework analyze broad and molecular...
We tested two hypotheses in this study: first, that intraspecific growth variations a marine bivalve are correlated with physiological (basal metabolic rate and scope for growth) biochemical (membrane lipids) characteristics, and, second, shows adaptations to temperature. To test these hypotheses, five genetically distinct groups of juvenile oysters Crassostrea virginica showed differences their rates were maintained the laboratory (1) further measurements standard (2) subjected acclimation...
We considered Cushing's match/mismatch theory in a heterotrophic environment and hypothesized that settlement recruitment success blue mussel are higher when the food supply is rich polyunsaturated essential fatty acids (PUFA/EFA). To test this hypothesis, we monitored larval development as well acid composition trophic resources during two successive reproductive seasons. The decoupling found between presence of competent larvae water column rates strongly suggests metamorphosis delayed...
ABSTRACT The Pacific oyster, Crassostrea gigas, is an osmoconforming bivalve exposed to wide salinity fluctuations. physiological mechanisms used by oysters cope with stress are energy demanding and may impair other processes, such as defense against pathogens. This oyster species has been experiencing recurrent mortality events caused the Ostreid herpesvirus 1 (OsHV-1). objectives of this study were investigate effect (10, 15, 25 35‰) on energetic reserves, key enzyme activities membrane...
Abstract Bivalve farming was usually considered as a CO 2 source through respiration and calcification, but recent studies suggest its potential sink, prompting exploration of inclusion in carbon markets. Here we reviewed the scientific basis behind this idea found that it is not supported by observational experimental studies. This indeed arises from budget models are based on theoretical misconceptions regarding seawater carbonate chemistry. The main misunderstanding consists assuming...
Ocean acidification occurs at a rate unprecedented for millions of years, forcing sessile organisms, such as oysters, to respond in the short term by relying on their phenotypic plasticity. Phenotypic plasticity has limits, tipping points, beyond which species will have adapt or disappear. These limits could be related adaptation different habitat variabilities. Here we expose juvenile pearl Pinctada margaritifera, broad range pH and determine response gross physiological, lipidome...
Abstract Phytoplankton play a crucial role in marine food webs as they supply essential fatty acids (FA) to higher trophic levels, from small pelagic fish top predators, through the intermediary action of zooplankton. Thus, composition and nutritional value plankton communities expectably influence abundance condition predators potentially leading spatial variation transfer. Through analysis FA profile zooplankton European sardine (Sardina pilchardus), community phytoplankton zooplankton, we...