Consulta: creatorFacets:"Gras, Marie-paule"
Registros recuperados: 8
Data/hora: 07/06/2024 08:51:49

Variations des caractères biométriques et des constitutants biochimiques d'une population C. gigas (Thunberg) d'un parc d'élevage du bassin de Marennes - Oléron en 1974
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul.
At the beginning of its introduction, following the massive mortality rate of 1970-1971 that struck the Portuguese oyster, Crassostrea angulata (COMPS and GRAS 1973), the oyster from the Pacific, Crassostrea gigas, displayed excellent growth in addition to exceptional hardiness and resistance to mortality. But, since 1973, in most of the farming areas, there has been a slowdown in the growth of the oysters and an at times quite pronounced decrease in their quality. It was in order to better understand their adaptation to the environment and the causes of the lowering of their growth rate and their condition that a study was undertaken in 1974, in one of the largest areas of flat cultivation of the Marennes-Oléron basin, located on the east coast of the...
Tipo: Text
Palavras-chave: Marennes Oléron; Biochimie; Biométrie; Huîtres; Crassostrea gigas.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/acte-2988.pdf

Elevages de bivalves à partir de naissain d'écloseries dans les claires du bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Gras, Paul; Gras, Marie-paule.
Des élevages expérimentaux d'huîtres plates Ostrea edulis et de palourdes Ruditapes decussatus et Ruditapes philippinarum ont été réalisés dans les claires à huîtres du bassin de Marennes-Oléron à partir de naissain provenant d'écloserie. Les croissances pondérale et linéraire et le pourcentage de mortalité ont été étudiés. Les premiers résultats obtenus sont encourageants, et, plusieurs ostréiculteurs ont commencé, cette année, avec notre assistance, la culture des palourdes dans leurs claires à huîtres.
Tipo: Text
Palavras-chave: Ostréiculture; Huître; Palourde; Ostrea edulis; Ruditapes decussatus; Ruditapes philippinarum; Claire ostréicole; Marennes Oléron; Charente Maritime.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00009/12010/8702.pdf

Génétique des huîtres
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul.
Following the high mortality which killed the Portuguese oysters Crassostrea angulata cultivated on the French coasts, the massive establishment of Pacific oysters Crassostrea gigas, resisting the disease and the creation of artificial deposits for the latter was decided. In most culture areas, the mortality was estimated at more than 80 % of the stock, but, in some regions, some small populations of Crassostrea angulata subsisted and kept on reproducing. A genetic control of the spawner stocks had to be made. The first step was to know if the oysters living in the same areas were of the same species in order to foresee the next generations and try to improve them (selection).
Tipo: Text
Palavras-chave: Sélection; Determination; Crassostrea gigas; Crassostea angulata; Huîtres; Génétique.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-6579.pdf

Contribution à la mise en place de critères de qualité des huîtres creuses Crassostrea gigas affinées en claires
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul; Cosnard, Michel; Garnier, Jacqueline.
The oysters fattened in the "claires" have a very appreciated quality. Representative criters of this quality: index of condition, the glycogen content, color of gills of molluscs by the pigment called "marennine" and indx of shape of shells are studied for the Japanses oysters Crassostrea gigas (Thunberg)
Tipo: Text
Palavras-chave: Ostréiculture; Claires à huître; Crassostrea gigas; Marennine; Verdissement; Marennes Oléron; Charente Maritime.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00009/12009/8701.pdf

Essais d'amélioration de l'engraissement et du verdissement des huîtres creuses Crassostrea gigas en milieu naturel (Claires)
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul.
Since the expansion of Crassostrea gigas cultivation, the quality of these cup oysters has been shown to vary quite a bit when they are marketed at the end of the year. Since the fattening of oysters depends in large part on the food they have available, we tried, with an eye to improving these bivalves, to encourage the nutritive possibilities of the environment where they are matured, the fattening ponds: hollow basins in flat and clayey plots of land. The former salt marshes of the Marennes-Oléron region, today almost all unused, are for the most part made over into oyster fattening ponds.
Tipo: Text
Palavras-chave: Marennes Oléron; Verdissement; Claires ostréicoles; Engraissement; Crassostrea gigas; Huîtres.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-2992.pdf

Etude préliminaire de l'acide désoxyribonucléique (ADN) d'huîtres du littoral atlantique français
Provedor de dados: 5
Autores: Gras, Marie-paule.
The mortality that decimated Portuguese oysters, C. angulata, in 1970-1971, up to 80% in most sectors, required the introduction of C. gigas oysters resistant to disease and whose reproduction proved itself to be excellent (GRAS and assoc. 1971). Artificial beds of Pacific oysters were created. Nonetheless, in some areas, there continued to be small populations of C. angulata that, mixed in with the C. gigas oysters that had been brought in, participated in reproduction. Genetic problems then arose, among which the selection of specimens and hybridisation were to be considered more specifically. There are, in fact, two cases of hybridisation.
Tipo: Text
Palavras-chave: Génétique; Hybridation; Huîtres; Crassostrea angulata; Crassostrea gigas.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/acte-2987.pdf

Essais d'amélioration de la qualité des huîtres creuses, Crassostrea gigas, en milieu naturel (claires)
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul.
Depuis l'extension de la culture de Crassostrea gigas, la qualité de ces huîtres creuses apparaît très variable au moment de leur commercialisation en fin d'année. En vue d'essayer d'améliorer la qualité de ces bivalves, nous nous sommes efforcés de comparer simultanément l'influence de différents apports nutritifs sur des huîtres provenant d'un lot homogène, mises à l'affinage en claires : bassins creusés dans des terrains plats et argileux, dont l'alimentation en eau de mer se fait à certains coefficients de marée. Les anciens marais-salants de la région de Marennes-Oléron, aujourd'hui presque tous désaffectés, ont été pour la plupart transformés en claires à huîtres
Tipo: Text
Palavras-chave: Ostréiculture; Huître; Crassostrea gigas; Physiologie; Nutrition; Claire ostréicole; Marennes Oléron; Charente-Maritime.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00009/12008/8700.pdf

Etude de la variabilité génétique de populations naturelles d'huîtres creuses Crassostrea gigas (Thunberg) du littoral Atlantique Français
Provedor de dados: 5
Autores: Gras, Marie-paule; Gras, Paul.
The aductor muscle proteins of Japaneses oysters C. gigas collected from three different geographical wild stocks were studied by acrylamid gel electrophoreseis. The first results reveal a biochemical polymorphism of a protein fraction
Tipo: Text
Palavras-chave: Crassostrea gigas; Oysters; Genetic; Polymorphism; Genetic population; Crassostrea gigas; Huîtres; Génétique; Polymorphisme; Populations naturelles.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/acte-2952.pdf