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| Registros recuperados: 34 | |
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| Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge; Nollet, V.; Chagot, Dominique. |
| La croissance et la reproduction du pétoncle noir, Chlamys varia, ont été suivies sur un cycle biologique complet, dans un marais maritime. Cette croissance s'est avérée être nettement, plus rapide qu'en rade de Brest, puisque la taille commerciale de 35 mm a été atteinte en un an. Les individus se sont reproduits au bout de la même période. Ceci montre qu'il est possible d'obtenir un cycle biologique très rapide. Lors du cycle de production, des mortalités importantes ont été constatées entre le prégrossissement en nurserie et la mise en élevage. Ces mortalités ne se sont pas renouvelées sur le cycle en cours d'étude. Un agent parasite nouveau a été décrit sur cette espèce, sans que les certitudes puissent être établies quant à son rôle pathogène.... |
| Tipo: Text |
Palavras-chave: Croissance; Composition biochimique; Elevage; Pétoncle; Marais maritime; Charente-Maritime. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00048/15905/13333.pdf |
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| Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Goulletquer, Philippe; Ratiskol, Jacqueline; Garnier, Jacqueline. |
| An hydrobiological monitoring survey has been carried out in the Bay of Marennes-Oléron since 1977. Five stations, distributed over the Bay, were sam pied twice a month. Spatial and temporal trends of the physical characteristics (i.e., seawater, temperature, salinity, dissolved oxygen and suspended matter), nutrients (azote, nitrite, nitrate, silicate) and organic variables (chlorophyll a and pheopigments) were assessed by using a statistical time-series analysis mode\. It was used to distinguish seasonal variability from long term trends. Pluviometric data as weil as the Charente River fluxes were similary analyzed by the model. The seasonal variability showed an homogeneous pattern over the five stations for all parameters, but the site-dependent... |
| Tipo: Text |
Palavras-chave: Shellfish farming; Overall trends; Seawater seasonal variability; Marennes Oleron Bay; Hydrology; Conchyliculture; Tendances; Variations saisonnières; Marennes Oléron; Hydrologie. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/rapport-6379.pdf |
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| Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Bodoy, Alain; Heurtebise, Serge; Garnier, Jacqueline; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Martin, Anne-genevieve; Claude, Serge; Barret, Jean; Devauchelle, Nicole; Joly, Jean-pierre; Goulletquer, Philippe; Coatanea, Denis; Oheix, Jocelyne; Zanette, Yvan; Blachier, Philippe. |
| This fourth part of the polyploidisation program reports the experiments that were conducted in 1992 and that were devoted to : - the acquiring of a new method using an epifluroescent microscope - the development o a new technique for inducing polyploidy - the triploidy induction for the Europena clam Ruditapes decussatus - the settlement of performance controls conducted on diploid and triploid populations of Ostrea edulis - results of performance controls conducted on diploid and triploid populations of Crassostrea gigas and Ruditapes philippinarum |
| Tipo: Text |
Palavras-chave: Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostra gigas; Cytongenetics; Polyploidy; Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostrea gigas; Cytogénétique; Polyploïdie. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/1993/rapport-3859.PDF |
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| Bodoy, A; Geiaron, P; Garnier, Jacqueline; Heurtebise, S. |
| Two different biomasses (100 g multiplied by m super(-2) and 1 kg multiplied by m super(-2)) of oysters were put in identical sea-water ponds, thus leading to different trophic conditions, corresponding to rearing techniques. Changes in growth, biochemical composition and sexual maturation were recorded for two age groups. The first one included 9 month-old oysters and the second one 21 month-old oysters, at the beginning of the experiment. For both age groups, significant differences were observed in growth and biochemical composition. Lipids were accumulated faster for the lower biomass. However, the only difference concerning glycogen was observed on the older oysters. They showed a peak at the lowest biomass and a decrease at the larger biomass. Sexual... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Bivalvia; Sea water; Oyster culture; Glycogen; Age; Chemical composition; Lipids; Biochemistry; Sexual maturity; Rearing; Pond culture; Biomass; Growth; Density. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-916.pdf |
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| Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge. |
| Dans le cadre d'un programme de recherche financé partiellement par la région Poitou-Charentes, un élevage expérimental du pétoncle noir, Chlamys varia, a été réalisés dans deux sites aquacoles. L'un concerne la mer ouverte, au moyen de filière d'élevage de type subflottant, l'autre les bassins en terre du marais maritime (claire). Une production en écloserie et un prégrossissement intensif ayant été réalisé, le naissain d'une taille d'environ 18 mm a fait l'objet d'un élevage hivernal, selon un plan expérimental qui comprenait un facteur relatif au milieu d'élevage et un facteur relatif à la densité. D'importantes mortalités ont été constatées juste après la mise en élevage. Elles semblent être en relation avec le transfert des individus entre le site de... |
| Tipo: Text |
Palavras-chave: Aquaculture; Pectinidés; Pétoncle; Filière d'élevage; Marais maritime. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00031/14205/11474.pdf |
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| Deslous-paoli, Jean-marc; Heral, Maurice; Goulletquer, Philippe; Boromthanarat, Wilaiwan; Razet, Daniel; Garnier, Jacqueline; Prou, Jean; Barille, Laurent. |
| The study of cultivated ecosystems, once the trophic capacity ha! been determined and the molluscan stocks estimated, requires a knowledge of the evolution of the seasonal consumption of food by molluscs in natural conditions. For Crassostrea gigas, Mytilus edulis, Cerastoderma edule, Ruditapes philippinarum, the amount and quality of food have no effect on the filtration rate, except for the high load of mineraI seston. First an increase of the filtration rate was shown for Mytilus edulis and Cerastoderma edule at the end of winter and beginning of spring. Moreover Crassostrea gigas and Ruditapes philippinarum have shown no increase or only a small summer one. This evolution did not seem to be linked with the environmental conditions (temperature,... |
| Tipo: Text |
Palavras-chave: Natural food; Bivalves; Filtration rates; Nourritures naturelles; Bivalves; Taux de filtration. |
| Ano: 1987 |
URL: http://archimer.ifremer.fr/doc/1987/publication-3304.pdf |
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| Bodoy, Alain; Bougrier, Serge; Geairon, Philippe; Garnier, Jacqueline; Boulo, Viviane; Heurtebise, Serge. |
| The flat oyster Ostrea edulis was originally reared in several regions of the European waters. The tidal saline ponds on the Atlantic coasts of France were highly productive before being hit by two consecutive epizooties. Parasitic diseases were described on this species, both of them leading 10 economic losses, as heavy mortalities have usually been recorded before the oysters reach the commercial size. Repeated experiments showed that the two diseases, Marteilia refringens and Bonamia ostreae are still active in this environment. Recently, some evidences were given that haemocytoblasts of Crassostrea gigas had the ability to lyze the Bonamia cells. Therefore, in an experiment of contiguous culture of the two species of oysters, the growth, mortality and... |
| Tipo: Text |
Palavras-chave: Molluscs; Mortalities; Growth; Pathology; Crassostra gigas; Ostrea edulis; Marteilia refringens; Bonamia ostreae. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-3049.pdf |
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| Heral, Maurice; Robert, Jean-michel; Truquet, Isabelle; Barbaroux, Olivier; Garnier, Jacqueline; Razet, Daniel. |
| Values of nitrogen nutrients (ammonia, nitrite and nitrate) are compared with values of total organic nitrogen and urea. In summer, the consumation by micro and macrophytes is added to less important telluric input of nineral nitroge. However, an important provision of organic nitrogen remains. On the contrary, in winter, organic nitrogen does not represent more than 10% of total nitrogen. The autors postulate that populations of oysters are at the starting point of the organic nitrogen production cycle. |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Biochimical composition; Oysters; Crassostrea gigas; Composition biochimique; Huîtres. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/acte-2940.pdf |
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| Heral, Maurice; Alzieu, Claude; Caux, O.; Razet, Daniel; Garnier, Jacqueline. |
| The toxicity of organostannic compounds has been demonstrated for the oyster Crassostrea gigas through larval (His & Robert, 1980) and adult stages (Alzieu & al., 1980, 1981). In parallel, these authors demonstrated the accumulation of tin in experimentally contaminated oysters as well as the part played by TBT fluorides in growth disturbance (Héral & al. 1981) and oyster shell deformity (Alzieu & al., 1981). In this work, we precise the TBT fluoride toxic doses causing, after 35 days, a mortality of 100 % at a concentration of 0.5 µgl-1. In addition, the different TBT organic salts (acetate, methacrylate and fluoride) are tested and TBT fluoride appears to be the more toxic. Authors then tackle breathing and ATP measurements as stress... |
| Tipo: Text |
Palavras-chave: Tributyletain; Crassostrea gigas; Toxicité. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-6216.PDF |
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| Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Borel, Michel; Maurer, Daniele; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Tige, Gilbert; Mazurie, Joseph; Langlade, Aime. |
| Cette réunion des membres du Réseau Génétique Mollusques avait pour objet de faire un bilan provisoire des actions en cours et surtout de mettre en place les protocoles et les calendriers du début de l'année 1994. La première demi-journée a été réservée à un exposé de Yamama NACIRI sur les bases de la Génétique Quantitative et ses applications dans le cadre des programmes de sélection des mollusques.La deuxième demi-journée a été consacrée au bilan des actions de 1993. Les représentants de chaque site, intervenant dans une opération du réseau en 1993, ont fait une présentation orale de leurs résultats. Un résumé de chaque intervention vous est fourni dans ce document. Il est important de souligner que tous ces bilans sont provisoires, en premier lieu parce... |
| Tipo: Text |
Palavras-chave: Génétique; Sélection génétique; Huître plate; Ostrea edulis; Croissance; Génétique population. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00049/15982/13425.pdf |
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| Baud, Jean-pierre; Glize, Philippe; Haure, Joel; Garnier, Jacqueline. |
| Dans un élevage Intensif en claires expérimentales de palourdes japonaises semées à la taille de 28 mm et aux densités de 100, 200 et 300/m2, différentes rations alimentaires de la diatomée Skeletonema costatum. cultivée à partir d'eau salée souterraine, ont été testées de mars à novembre 1988. Pour la densité 100/m2, le taux de croissance n'est pas significativement différent avec des concentrations de pigment dans l'eau injectée comprises entre 31 et 126 µg.l(1) de Chia. Toutefois celui-ci est 1,5 fois supérieur à celui observé dans la claire témoin. Avec 1.8 kg.m-2 la biomasse finale représente 2 fois la charge récoltée dans la claire extensive. Après analyse, la densité de 300/m2 semble être le meilleur compromis pour l'élevage intensif même si la... |
| Tipo: Text |
Palavras-chave: Aquaculture intensive; Palourde japonaise; Ruditapes philippinarum; Marais maritime; Zootechnie; Densité; Croissance; Biomasse; Production; Rendement. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00048/15885/13307.pdf |
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| Registros recuperados: 34 | |
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