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...
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...
DAVID, Elise, BOUDRY, Pierre, DEGREMONT, Lionel, TANGUY, Amelie, QUERE, N, SAMAIN, Jean-Francois, ...
Large-scale mortality events have been observed in Pacific oyster Crassostrea gigas on the west coast of France since the early 1980s, particularly during summer. In order to understand the causes of...
LE MOULLAC, Gilles, FLEURY, Pierre-Gildas, LE COZ, Jean-Rene, MOAL, Jeanne, SAMAIN, Jean-Francois
This study was designed to assess in situ the effects of sediment nearness on Crassostrea gigas metabolism. One year-old oysters were reared for 5 months (April-August) in plastic bags on metallic...
LAMBERT, Christophe, SOUDANT, Phillippe, DEGREMONT, Lionel, DELAPORTE, Maryse, MOAL, Jeanne, BOUDRY, Pierre, ...
High variability among individuals is often encountered when hemocyte characteristics are measured in bivalves. Such variability is suspected to result partly from genetic factors. In this study,...
LAMBERT, Christophe, SOUDANT, Philippe, JEGADEN, Marine, DELAPORTE, Maryse, LABREUCHE, Yannick, MOAL, Jeanne, ...
Bivalve hemocyte competence has been measured by quantifying functional characteristics, including reactive oxygen intermediate (ROI) production after activation with zymosan or phorbol myristate...
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...
PALACIOS, Elena, RACOTTA, I.S., ARJONA, O, MARTY, Y, LE COZ, Jean-Rene, MOAL, Jeanne, ...
Knowledge on the energy distribution during the reproductive cycle of the giant lion-paw scallop, Nodipecten subnodosus is limited, but necessary for aquaculture purposes. In a previous work, we...
DELAPORTE, Maryse, CHU, Fu-Lin, LANGDON, Chris, MOAL, Jeanne, LAMBERT, Christophe, SAMAIN, Jean-Francois, ...
The aim of this study was to assess the effect of dietary eicosapentaenoic acid (20:5n-3) on hemocyte parameters such as hemocyte concentration, phagocytosis, and non-stimulated reactive oxygen...
BOUDRY, Pierre, HUVET, Arnaud, LAPEGUE, Sylvie, SAUVAGE, Christopher, TANGUY, A., MORAGA, D., ...
Rationale for EST and genome sequencing of the Pacific oyster: its membership of the Lophotrochozoa, an little studied branch of the Eukaryotes, its worldwide aquacultural importance (4.2...
TREMBLAY, Rejean, CARTIER, Simon, MINER, Philippe, PERNET, Fabrice, QUERE, Claudie, MOAL, Jeanne, ...
The main objective of this study was to identify algal diets that maximize the survival and growth and alter the biochemical content of Pecten maximus larvae with the aim of improving metamorphosis....
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...
PRUDENCE, Marie, MOAL, Jeanne, BOUDRY, Pierre, DANIEL, Jean-Yves, QUERE, Claudie, JEFFROY, Fanny, ...
This study investigated the non-neutrality of genetic polymorphism in two alpha-amylase genes (AMYA and AMYB) in the oyster Crassostrea gigas. Bi-parental oyster families, bred to be polymorphic for...
DELAPORTE, Maryse, SOUDANT, P, MOAL, Jeanne, GIUDICELLI, Emilie, LAMBERT, C, SEGUINEAU, Catherine, ...
Arachidonic acid (20:4n-6, ArA) and its eicosanoid metabolites have been demonstrated to be implicated in immune functions of vertebrates, fish, and insects. Thus, the aim of this study was to assess...
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...
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...
PALACIOS, Elena, RACOTTA, I, KRAFFE, E, MARTY, Y, MOAL, Jeanne, SAMAIN, Jean-Francois
Seasonal variations in fatty acid composition in several tissues of a 1-year-old population of giant lion's-paw scallop Nodipecten subnodosus were analyzed during gonad development. Samples were...
Amylase polymorphism affects growth in the cupped oyster Crassostrea gigas (2005)
HUVET, Arnaud, SAMAIN, Jean-Francois, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, VAN WORMHOUDT, A.
The better understanding of physiological and environmental factors that determine optimal food conversion efficiencies is of major interest for the cupped oyster Crassostrea gigas for which the...
Techniques for delivery of arachidonic acid to Pacific oyster, Crassostrea gigas, spat (2005)
SEGUINEAU, Catherine, SOUDANT, P, MOAL, Jeanne, DELAPORTE, Maryse, MINER, Philippe, QUERE, Claudie, ...
The present study tested two techniques for dietary supplementation of Crassostrea gigas spat with PUFA, such as arachidonic acid (AA). The first technique consisted of a preliminary enrichment and...
DEGREMONT, Lionel, BEDIER, Edouard, SOLETCHNIK, Patrick, ROPERT, Michel, HUVET, Arnaud, MOAL, Jeanne, ...
Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in different parts of the world. The causes of this phenomenon are complex. The multidisciplinary program...
DEGREMONT, Lionel, BOUDRY, Pierre, SOLETCHNIK, Patrick, BEDIER, Edouard, ROPERT, Michel, SAMAIN, Jean-Francois
Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for survival in juvenile oysters Crassostrea gigas. For each generation, two...
HUVET, Arnaud, DEGREMONT, Lionel, LABREUCHE, Yannick, DANIEL, Jean-Yves, DUBRUNFAUT, Thomas, BOUDRY, Pierre, ...
Summer mortality associated with juveniles of the oyster Crassostrea gigas is the result of a complex interaction between the host, pathogens and environment. Divergent selection based on summer...
DEGREMONT, Lionel, BOUDRY, Pierre, SOLETCHNIK, Patrick, BEDIER, Edouard, ROPERT, Michel, SAMAIN, Jean-Francois
Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for this trait in juvenile oysters Crassostrea gigas. For each generation, two...
HUVET, Arnaud, HERPIN, Amaury, DEGREMONT, Lionel, LABREUCHE, Yannick, SAMAIN, Jean-Francois, CUNNINGHAM, Charles
Summer mortality associated with juveniles of the oyster Crassostrea gigas is probably the result of a complex interaction between the host, pathogens and environmental factors. Genetic variability...
BOUDRY, Pierre, DEGREMONT, Lionel, BEDIER, Edouard, SAMAIN, Jean-Francois
Summer mortality of adults and juveniles has been reported in the Pacific oyster, Crassostrea gigas, for many years and in several countries. The French multidisciplinary program "Morest" aims to...
HUVET, Arnaud, DANIEL, Jean-Yves, QUERE, Claudie, DUBOIS, Solene, PRUDENCE, Marie, VAN WORMHOUDT, A, ...
A semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) assay was developed to estimate tissue-specific expression of two amylase genes in five different tissues of the Pacific...
DEGREMONT, Lionel, BEDIER, Edouard, SOLETCHNIK, Patrick, ROPERT, Michel, SAMAIN, Jean-Francois, BOUDRY, Pierre
The French project "Morest", coordinated by IFREMER, aims to a better understanding of the causes of summer mortalities in juvenile oysters by a multidisciplinary approach. Within this program, a...
DELAPORTE, Maryse, SOUDANT, Philippe, MOAL, Jeanne, LAMBERT, Christophe, QUERE, Claudie, MINER, Philippe, ...
The impact of diets upon the fatty acid composition of haemocyte polar lipids and consequently upon immune parameters has been tested in the oyster Crassostrea gigas and the clam Ruditapes...
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...
Genetic basis of summer mortality in juvenile cupped oysters (2003)
DEGREMONT, Lionel, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, SOLETCHNIK, Patrick, HUVET, Arnaud, ...
The French project "Morest", coordinated by IFREMER, aims to understand the causes of the summer mortalities in Crassostrea gigas. In 2001, three sets of families were bred following a nested...
SOLETCHNIK, Patrick, ROPERT, Michel, BEDIER, Edouard, COSTIL, K. S., DUBOIS, Brice, DEGREMONT, Lionel, ...
Field characterization of summer mortality was performed in France in the frame of the Morest project. Natural and hatchery spat were compared between three oyster production areas in France....
DEGREMONT, Lionel, BOUDRY, Pierre, BEDIER, Edouard, ROPERT, Michel, SOLETCHNIK, Patrick, HUVET, Arnaud, ...
In the scope of the Morest program, 3 series of bi-parental families of cupped oyster consisting of full and half-sib have been created in 2001, and then studied on a regular basis on several sites...
PALACIOS, Elena, REHAULT, Jean Pierre, HERAS, Horacio, MARTY, Yannick, MOAL, Jeanne, SAMAIN, Jean-Francois
In this study, lipid classes and fatty acid composition were determined in eggs of P. vannamei as a function of survival to zoea III stage. Spawns were reared individually to zoea III and grouped,...
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...
DEGREMONT, Lionel, MOAL, Jeanne, DANIEL, Jean-Yves, BOUDRY, Pierre, VAN VORMHOUDT, A., SELLOS, D., ...
In the scope of the European program GENEPHYS, which aims to establish the relationship between the genetic base and the physiological characters in relation to the growth in Crassostrea gigas, it...
Bacterial ecology in production tanks during larval scallop rearing (Pecten maximus ). (1992)
JACQ, E, MOAL, Jeanne, SAMAIN, Jean-Francois, CORRE, S, DANIEL, J, NICOLAS, Jean-Louis, ...
Larval rearings were performed with seawater either freshly pumped or after storage in a pond. Concerning bacterial populations these waters were characterized by a high diversity, little sized...
MOAL, Jeanne, SAMAIN, Jean-Francois, BODOY, Alain, LE COZ, Jean-Rene
The energy charge was measured for two Crassostrea gigas populations, during an annual survey at Marennes Oleron, to appreciate the condition of health of these oysters. It is assumed that the actual...
SAMAIN, Jean-Francois, COCHARD, Jean-Claude, CHEVOLOT, Lionel, DANIEL, Jean-Yves, JEANTHON, C., LE COZ, Jean-Rene, ...
Des différences positives de croissance sont observées quelle que soit la saison, pour des larves de Pecten maximus élevées dans l'eau d'un ancien vivier, comparativement avec l'eau qui...