BOURLES, Yves, ALUNNO BRUSCIA, Marianne, POUVREAU, Stephane, TOLLU, Guillaume, LEGUAY, Didier, ARNAUD, C, ...
A bio-energetic model, based on the DEB theory exists for the Pacific oyster Crassostrea gigas. Pouvreau et al. [Pouvreau, S., Bourles, Y., Lefebvre, S., Gangnery, A., Alunno-Bruscia, M., 2006....
GRANGERE, Karine, MENESGUEN, Alain, LEFEBVRE, Sébastien, BACHER, Cedric, POUVREAU, Stephane
It is well known that temporal changes in bivalve body mass are strongly correlated with temporal variations in water temperature and food supply. In order to study the influence of the year-to-year...
Davenel, Armel, POUVREAU, Stephane, Cambert, Mireille, SUQUET, Marc, Mariette, Francois
MR imaging is the most appropriate non-invasive technique for quantifying the growth of somatic and gonad tissues and to determine sex in the Pacific oyster, Crassostrea gigas. However, this...
RICO VILLA, Benjamin, POUVREAU, Stephane, ROBERT, Rene
Ingestion, growth and metamorphosis of Pacific oyster, Crassostrea gigas, larvae were studied under controlled conditions of food density and temperature using a combination of a flow-through rearing...
HUVET, Arnaud, JEFFROY, F, FABIOUX, C, DANIEL, Jean-Yves, QUILLIEN, Virgile, VAN WORMHOUDT, A, ...
To examine further a previously reported association between amylase gene polymorphism and growth in the Pacific oyster Crassostrea gigas, ecophysiological parameters and biochemical and molecular...
POUVREAU, Stephane, MAURER, Daniele, AUBY, Isabelle, SOLETCHNIK, Patrick, MILLE, Dominique, BERNARD, Ismael, ...
In France, spatfall of Pacific Oysters occurs traditionally in two shellfish area of the south west of France: the Marennes-Oléron bay and the Arcachon basin. The spat collected in both sites...
RICO VILLA, Benjamin, WOERTHER, P, MINGANT, Christian, LEPIVER, D, POUVREAU, Stephane, HAMON, Michel, ...
While literature is relatively abundant on adult shellfish, ecophysiological studies at the larval stage are scarce because of both technical difficulties and inadequate methodology. A tool dedicated...
ROYER, J, SEGUINEAU, Catherine, PARK, K, POUVREAU, Stephane, CHOI, K, COSTIL, K
Two methods were used to estimate the reproductive output of female Pacific oysters reared in Normandy: histology with image analysis and ELISA (Enzyme-Linked lmmunoSorbent Assay) which allowed the...
LE MOULLAC, Gilles, CHEIZE, Marie, GASTINEAU, Olivier, DANIEL, Jean-Yves, LE COZ, Jean-Rene, HUVET, Arnaud, ...
The purpose of this study is to examine the response of the oyster Crassostrea gigas to sulphide at different biological scales. A first experiment was designed to measure for 20 h the clearance (CR)...
DELAPORTE, Maryse, SOUDANT, P, LAMBERT, C, JEGADEN, M, MOAL, Jeanne, POUVREAU, Stephane, ...
Within the framework of a national scientific program named "MORtalites ESTivales de l'huitre creuse Crassostrea gigas" (MOREST), a family-based experiment was developed to study the genetic basis of...
BOURLES, Yves, POUVREAU, Stephane, ALUNNO-BRUSCIA, Marianne, LEGUAY, Didier, ARNAUD, Christophe, GOULLETQUER, Philippe, ...
Impact of Brown Ring Disease on the energy budget of the Manila clam Ruditapes philippinarum (2007)
FLYE SAINTE MARIE, Jonathan, POUVREAU, Stephane, PAILLARD, Christine, JEAN, Fred
Brown Ring Disease (BRD) is a bacterial disease caused by the pathogen, Vibrio tapetis. The disease induces formation of a brown deposit on inner shell of the Manila clam, Ruditapes philippinarum....
LE MOULLAC, Gilles, QUEAU, Isabelle, LE SOUCHU, Pierrick, POUVREAU, Stephane, MOAL, Jeanne, SAMAIN, Jean-Francois
The purpose of this study was to examine the responses of the oyster C. gigas to oxygen levels at subcellular and whole-organism levels. Two experiments were carried out. The first experiment was...
SAMAIN, Jean-Francois, DEGREMONT, Lionel, SOLETCHNIK, Patrick, HAURE, Joel, BEDIER, Edouard, ROPERT, Michel, ...
Summer mortality of Pacific oysters is known in several countries. However no specific pathogen has been systematically associated with this phenomenon. A complex combination of environmental and...
LE MOULLAC, Gilles, BACCA, Helene, HUVET, Arnaud, MOAL, Jeanne, POUVREAU, Stephane, VAN WORMHOUDT, A
The response of Crassostrea gigas to prolonged hypoxia was investigated for the first time by analyzing the metabolic branch point formed by pyruvate kinase (PK) and phosphoenolpyruvate carboxykinase...
BOUDRY, Pierre, DEGREMONT, Lionel, BEDIER, Edouard, POUVREAU, Stephane, NORMAND, Julien, ERNANDE, Bruno
To date, the most significant method to genetically reduce reproductive effort in the Pacific oyster (Crassostrea gigas) has been through the production of triploids, especially since the development...
SAMAIN, Jean-Francois, DEGREMONT, Lionel, SOLETCHNIK, Patrick, ROPERT, Michel, BEDIER, Edouard, MAZURIE, Joseph, ...
Complex interactions between oyster, environment and pathogens were observed during the MOREST (2001-2005) project on summer mortality events of Crassostrea gigas oysters in France. The talk will...
PAULET, Yves-Marie, LORRAIN, Anne, RICHARD, Joëlle, POUVREAU, Stephane
To test the potential of diet switching experiments in ecophysiological studies of marine invertebrates, stable carbon isotope ratios were measured at different seasons in the gonad, adductor muscle,...
DAVENEL, Armel, QUELLEC, Stéphane, POUVREAU, Stephane
The aim of this study was to test the ability of magnetic resonance imaging (MRI) technique to characterize gonad development and to determine the sex of live Pacific oysters through their shells. A...
POUVREAU, Stephane, RAMBEAU, Marc, COCHARD, Jean-Claude, ROBERT, Rene
Classically, investigation of the internal morphology and composition of molluscs and especially bivalves relies on destructive method (biometry, biochemistry and histology). These techniques have...
POUVREAU, Stephane, BOURLES, Yves, LEFEBVRE, Sebastien, GANGNERY, Aline, ALUNNO-BRUSCIA, Marianne
The Dynamic Energy Budget (DEB) model (Kooijman, S.A.L.M., 1986. Energy budgets can explain body size relations. J. Theor. Biol. 121, 269¿282; Kooijman, S.A.L.M., 2000. Dynamic Energy and Mass...
Possibilities to prevent Crassostrea gigas oyster summer mortality in France (2006)
SAMAIN, Jean-Francois, ROPERT, Michel, BEDIER, Edouard, SOLETCHNIK, Patrick, MAZURIE, Joseph, LE COZ, Florence, ...
Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in Japan, US and Europe. It affects both adults and juveniles and the causes of this phenomenon are...
Ovarian and sperm regulatory peptides regulate ovulation in the oyster Crassostrea gigas (2006)
BERNAY, Benoît, BAUDY FLOC' H, Michèle, ZANUTTINI, Bruno, ZATYLNY, Céline, POUVREAU, Stephane, HENRY, Joël
For more than six decades, several studies have shown that genital products to entering the mantle cavity via the incurrent siphon, initiate in oyster, strong and rhythmic contractions of the...
DELAPORTE, Maryse, SOUDANT, P, LAMBERT, C, MOAL, Jeanne, POUVREAU, Stephane, SAMAIN, Jean-Francois
The aim of this study was to test the effect of food quantity on energy storage and defense capacities of oysters during a reproductive cycle. One-year-old Crassostrea gigas oysters were fed two...
Temperature and photoperiod drive Crassostrea gigas reproductive internal clock (2005)
FABIOUX, Caroline, HUVET, Arnaud, LE SOUCHU, Pierrick, LE PENNEC, Marcel, POUVREAU, Stephane
This study examined the gametogenic cycle of Crassostrea gigas in controlled conditions over one year, with a focus on the initiation of gametogenesis. This work analysed also the role of temperature...
BACCA, Helene, HUVET, Arnaud, FABIOUX, Caroline, DANIEL, Jean-Yves, DELAPORTE, Maryse, POUVREAU, Stephane, ...
To investigate the control at the mRNA level of glycogen metabolism in the cupped oyster Crassostrea gigas, we report in the present paper the cloning and characterization of glycogen phosphorylase...
SAVINA, Marie, POUVREAU, Stephane
A comparative ecophysiological study was carried out in September and November 2002 for two bivalves, Paphia rhomboides and Glycymeris glycymeris, which are significantly harvested in the Western...
Oyster vasa-like gene as a marker of the germline cell development in Crassostrea gigas (2004)
FABIOUX, Caroline, HUVET, Arnaud, LELONG, C, ROBERT, Rene, POUVREAU, Stephane, DANIEL, Jean-Yves, ...
The oyster vasa-like gene was previously demonstrated to be specifically expressed in germline cells of adult oysters Crassostrea gigas. In the present study, this gene was used as a molecular marker...
The oyster vasa-like gene: a specific marker of the germline in Crassostrea gigas (2004)
FABIOUX, Caroline, POUVREAU, Stephane, LE ROUX, Frederique, HUVET, Arnaud
The vasa gene is,a key determinant for germline formation in eukaryotes. This gene, highly conserved through evolution, encodes a RNA helicase protein member of the DEAD-box family. To understand the...
Biochemical analyses protein glucids lipids in the flesh of the shells (2003)
FAURY, Nicole, GEAIRON, Philippe, MOAL, Jeanne, POUVREAU, Stephane, RAZET, Daniel, ROPERT, Michel, ...
Proximate biochemical analysis (proteins, lipids and carbohydrates) are performed on a regular basis by the various laboratories fom the Aquaculture Resources Directorate. Methods initially developed...
Genetic and reproction strategy in Crassostrea gigas mortality (2003)
MOAL, Jeanne, BEDIER, Edouard, FLEURY, Pierre-Gildas, LANGLADE, Aime, LE COGUIC, Yvette, DEGREMONT, Lionel, ...
Bi-parental families were produced in hatchery and tested in the field in 2001. Two sets of 5 families were constituted, selected on their high (R) and low (S) survival. These two sets were reared in...
DELAPORTE, Maryse, MOAL, Jeanne, SOUDANT, Philippe, LAMBERT, Christophe, POUVREAU, Stephane, ENRIQUEZ, Martha, ...
In the frame of MOREST project, a common biological material, resulting of a mixture of different families produced in experimental hatchery, was reared in two different environmental fields :...
SOLETCHNIK, Patrick, LE MOINE, Olivier, FAURY, Nicole, GUILPAIN, Patrice, GEAIRON, Philippe, RAZET, Daniel, ...
Four laboratories are involved in this multidisciplinary study: the Conchological Laboratory of Normandie (LCN), the Invertebrates Physiology Laboratory (LPI), the Université Bretagne Occidentale...
POUVREAU, Stephane, BACHER, Cedric, HERAL, Maurice
A model of bioenergetics of the black pearl oyster (Pinctada margaritifera) was built to simulate growth, reproduction and spawning in suspended culture at field sites in Takapoto lagoon (French...
POUVREAU, Stephane, TIAPARI, Jerome, GANGNERY, Aline, LAGARDE, Franck, GARNIER, Matthieu, TEISSIER, Hinano, ...
Growth of the black-lip pearl oyster, Pinctada margaritifera var. cumingi, was studied for an annual cycle, from March 1997 to April 1998, in the lagoon of Takapoto atoll (Tuamotu archipelago, French...
POUVREAU, Stephane, BODOY, Alain, BUESTEL, Dominique
In situ clearance rate (CR) and biodeposition of the black pearl oyster, Pinctada margaritifera, were followed during several field experiments from 1996 to 1998 in the lagoon of Takapoto. Serial...
By-catch and Discarding in Pelagic Trawl Fisheries (1996)
MORIZUR, Yvon, TREGENZA, N, HEESSEN, H, POUVREAU, Stephane
Incidental mammal catch and the composition of the fish catch were studied in pelagic trawl fisheries in the North-East Atlantic. Several seasonal European fisheries were investigated with scientific...
Estimating the biomass of non-cultivated oysters in the basin of Marennes-Oléron bay (1994)
PROU, Jean, POUVREAU, Stephane, RENAUD, Vivian
Dans le bassin ostréicole de Marennes-Oléron, le stock d'huîtres cultivées présente un déséquilibre de sa composition en classes d'âge: 25000 à 30000 tonnes sont commercialisées...