Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 34
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Absence de captage de Crassostrea gigas dans le bassin de Marennes-Oléron en 1981 : causes et conséquences ArchiMer
Berthome, Jean-paul; Deslous-paoli, Jean-marc; Heral, Maurice; Razet, Daniel; Garnier, Jacqueline.
The want of C. gigas spat-catching in the Marennes-oleron basin in 1981 can be due to various different reasons which are analysed here. Physico -chemical and trophic factors that can induce variations in the quality of gametogenesis, are successively in comparison with the year 1979 when reproduction was good. The biochemical evolution and a study of gonads slow a lack in maturation in 1981 even during the summer period. Late maturation of gonads bring about physiological consequences which induced mortality of cultivated oysters at the end of winter. A feeble recruit and a decrease of the cultivated stock have economic consequences which here sketched up.
Tipo: Text Palavras-chave: Larvae; Recrutment; Spat; Crassostrea gigas; Oysters; Larves; Recrutement; Captage; Crassostrea gigas; Huîtres.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/acte-2948.PDF
Imagem não selecionada

Imprime registro no formato completo
Amelioration de la forme et de la qualite de l'huitre Crassostrea gigas Thunberg dans les claires de Marennes-Oleron. ArchiMer
Deslous-paoli, Jean-marc; Zanette, Yvan; Heral, Maurice; Masse, Henri; Garnier, Jacqueline.
The breeding of Pacific oysters Crassostra gigas, in non tidal ponds, before commercialization, brings about an improvement of the shell and of the quantity and quality of the tissues. In fact, the Berthome's indice (1978) moves from 1.36 in June to 0.68 December, and the density of the shell increases in the same time from 1.79 to 1.98. On the other hand, the percentage of tissues in the oyster is 12.4% at the end of gametogenesis and more than 9% at the end of breeding. The dry tissues are composed of 10.3 of ash, 40.3% of proteins, 12.6% of lipids and 9% of carbohydrate. 95% of the carbohydrate are glycogen. The resulting energetic values are measured to 5.10 cal-mg super(-1) of dry tissues ash free.
Tipo: Text Palavras-chave: Crassostrea gigas; Tissues; Biochemical composition; Shells; Growth; Oyster culture.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/publication-1892.pdf
Imagem não selecionada

Imprime registro no formato completo
Anomalies de croissance de la coquille de Crassostrea gigas dans le bassin de Marennes -Oléron. Bilan de toris années d'observation ArchiMer
Heral, Maurice; Berthome, Jean-paul; Polanco Torres, E.; Alzieu, Claude; Deslous-paoli, Jean-marc; Razet, Daniel; Garnier, Jacqueline.
The appearance and changes of the oyster shell's gelatinous bags have been monitored since 1979. The increase in thickness that causes the growth into a "ball" can be explained by an overproduction of gel. The various environmental factors that can intervene in the secretion of gel are successively examined.
Tipo: Text Palavras-chave: Oysters; Shell; Crassostrea gigas; Huîtres; Coquille; Crassostrea gigas.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-2943.pdf
Imagem não selecionada

Imprime registro no formato completo
Composition de la matière organique particulaire dans les eaux du bassin de Marennes-Oléron : apport énergétique pour la nutrition de l'huître ArchiMer
Heral, Maurice; Razet, Daniel; Maestrini, Serge; Garnier, Jacqueline.
A twice monthly study shows that the major amount of organic material is from detrtic origin, and is brought in winter, when valeus of mineral seston are very high. In the sping time, phytoplancton blooms, do not make up for lack of detritic material where as in the summer, oceanic phytoplancton is composed of important amounts of carbohydrates. Available food is defined as sum of protids, lipids and carbohydrates and mesured in energetic therms. This allows to foretell the amount of food that molluscs ar likely to assimilate.
Tipo: Text Palavras-chave: Marennes Oléron; Nutrition; Matière organique; Crassostrea gigas; Huîtres.
Ano: 1980 URL: http://archimer.ifremer.fr/doc/1980/acte-3003.pdf
Imagem não selecionada

Imprime registro no formato completo
Composition en éléments azotés minéraux et orgnaiques dissous de l'eau du bassin conchylicole de Marennes-Oléron ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Contribution à la mise en place de critères de qualité des huîtres creuses Crassostrea gigas affinées en claires ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Description, évolution et importance des différentes techniques de captage en rivière Seudre (bassin de Marennes-Oléron) : incidence sur la production d'huîtres creuses C. gigas ArchiMer
Berthome, Jean-paul; Razet, Daniel; Garnier, Jacqueline.
Dealing with the study of the oyster stocks in Marennes Oleron basin, a method is set up to study oystr origin. Various collectors, factory-made or hand-made (about 90% of the whole) are described. Technical evolution, bound to the importance of potential catching in three concerned districts depands on the catching ability of the different types of collectors. The catching, achieved in the Seudre river, represents nearly 1 400 million units, wich is a theorical potentail quantity of 30 000 tons of adults oysters
Tipo: Text Palavras-chave: Larvae; Recrutment; Crassostrea gigas; Oysters; Oyster stock; Technique captage; Recrutement; Crassostrea gigas; Huîtres; Evaluation stocks.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-2935.pdf
Imagem não selecionada

Imprime registro no formato completo
Diversification des productions conchylicoles en Poitou-Charentes. L'élevage du pétoncle noir Chramys Varias ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Does the prevalence of Bonamia and Marteilia diseases be reduced on flat oysters (Ostrea edulis) of Atlantic and Mediterranean origin, when they are reared together with the Japanese oyster (Crassostrea gigas) in tidal ponds? ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Effets de l'apport de phytoplancton (Skeletonema costatum) sur la croissance et les variations de la composition biochimique de la palourde japonaise Ruditapes philippinarum cultivée en marais ArchiMer
Baud, Jean-pierre; Haure, Joel; Garnier, Jacqueline.
A bulk production of phytoplankton (Skelelonema costatum) has been obtained in concrete tanks from saline groundwater. This was used in various concentrations to feed an intensive cultivation of the Manila clam (Ruditapes philippinarum) in ponds. No difference was observed in growth rates of molluscs, with food concentrations between 31 to 126 µg/l Chl a. However, the growth rates obtained from March to November with a food supplement were 1.5 times higher than those observed in the traditional, extensive cultivation. The biomass doubled and the increase in flesh dry weight was 2.5 times higher. The condition index reached a value of 100 in the intensive cultivation. During growth, the proximate composition analysis revealed that the lipid and carbohydrate...
Tipo: Text Palavras-chave: Ruditapes philippinarum; Skeletonema costatum; Elevage intensif; Claire; Croissance; Composition biochimique; Ruditapes philippinarum; Skeletonema costatum; Intensive rearing; Pond; Growth; Biochemical changes.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00039/14980/12307.pdf
Imagem não selecionada

Imprime registro no formato completo
Effets d'enrichissements azotés sur la croissance des palourdes mises en élevage dans les claires du bassin de Marennes-Oléron ArchiMer
Goulletquer, Philippe; Razet, Daniel; Prou, Jean; Garnier, Jacqueline; Taillade, Sylvie; Heral, Maurice; Peyre, R; Faivre, C.
Etant donné que la production de mollusques (palourdes ou huîtres) est limitée à 0,8 kg à 1 kg au m2 soit 40 à 50 palourdes adultes de 20 g au m2, il est intéressant d'essayer de forcer cette production en augmentant la production primaire qui est le facteur limitant de la production de palourdes. Cette production primaire dépend des apports en sels nutritifs en effet les travaux antérieurs de Zanette (1979), de Zanette et Garnier (1980), de Robert (1984) ont mis en évidence que les biomasses phytoplanctoniques ne peuvent dépasser un certain seuil à cause de l'épuisement progressif en sels nutritifs. Robert et al. (1984) ont mis en évidence, dans les claires de la Baie de Bourgneuf que l'azote est le premier facteur limitant de la croissance...
Tipo: Text
Ano: 1985 URL: http://archimer.ifremer.fr/doc/00389/50053/50641.pdf
Imagem não selecionada

Imprime registro no formato completo
Effets des sels organiques de tributyletain sur l'huître adulte Crassostrea gigas ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Elevage intensif de la palourde japonaise Ruditapes philippinarum dans les marais atlantiques: faisabilité biologique ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Etude comparée de deux années de reproduction de l'huître creuse Crassostrea gigas dans le bassin de Marennes-Oléron : aspects hydrobiologiques ArchiMer
Berthome, Jean-paul; Razet, Daniel; Garnier, Jacqueline.
The detection of larval oysters emissions and their evolution were studied in 1977 and 1978 and compared within two areas of the Marennes Oleron basin: The Seudre river and the northern part of the basin. In 1977, the earlier fication of spat were noted as soon as July 14th in both areas while in 1978, it had been necessary to wait till the end of August to see the beginning of settling. Hydrobiological datas were correlated one with others, as well as with quantites results of 1978 provide us with correlations indicating the importance of continental inputs.
Tipo: Text Palavras-chave: Huître creuse; Crassostrea gigas; Reproduction; Larves; Marennes Oléron.
Ano: 1979 URL: http://archimer.ifremer.fr/doc/00018/12953/9928.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude de la mortalité des moules dans le Pertuis Breton en 1989 ArchiMer
Dardignac, Marie-jose; Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge; Legrand, Jacqueline.
Une recherche des causes de la mortalité des moule au printemps dans le Pertuis Breton a été entreprise en 1989. La faible pluviométrie observée cette année là n'a pas entrainé de dessalures importantes et les mortalités constatées ont été si faibles qu'elles n 'ont pas eu de conséquences sur la production de moules. Les essais réalisés en milieu contrôlé ont montré que même pendant la période de reproduction au cours de laquelle les moules sont plus fragiles, il fallait des salinités inférieures à 15 p . mille et se maintenant pendant plusieurs jours avant que des mortalités n 'apparaissent. Il est prévu de remettre le même programme en place au printemps 1990.
Tipo: Text Palavras-chave: Moules; Bouchots; Mortalités; Pollution; Pertuis Breton.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00048/15902/13330.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude hydrobiologique du bassin de Marennes-Oléron : incidences sur la reproduction de Crassostrea gigas en 1977 ArchiMer
Berthome, Jean-paul; Razet, Daniel; Garnier, Jacqueline.
The detection of larval oysters emissions and their evolution were studied in the Seudre river along with meteorological and bydrobiological datas. The earlier oyster emissions were found betveen july 4th and 8th and they developed into the fixation of the spat from july 14. The bydrobiological datas were correlated with one another as well as with the quantity of larval that was observed at each stage of their evolution. In the latter case, no significant correlation was established between the quantity of larval and the hydrobiologica.l datas, as those have undergone relatively few variations during time of the study.
Tipo: Text Palavras-chave: Paramètres météorologiques; Reproduction larves; Bassin Marennes Oléron; Hydrobiologie.
Ano: 1978 URL: http://archimer.ifremer.fr/doc/1978/acte-2998.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude hydrobiologique du bassin de Marennes-Oleron. Un exemple: la secheresse de l'ete 1976. ArchiMer
Heral, Maurice; Berthome, Jean-paul; Razet, Daniel; Garnier, Jacqueline.
Consequences of drought during the summer of 1976 are related. Principal component analysis allowed the division of the area into 5 main districts, each of them with distinctive hydrological and phytoplanktonic characteristics. The rivers Charente and Seudre are particularly eutrophic and carry great quantities of nitrates, phosphates and silicates. Eutrophic evaluation of the river Seudre is studied, as well as oyster mortalities that resulted. Reproduction and settlement of spat oysters are related to the hydrology of each district.
Tipo: Text Palavras-chave: France; Charente R. Oyster culture Environmental effects Eutrophication Droughts.
Ano: 1978 URL: http://archimer.ifremer.fr/doc/1978/publication-1958.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude préliminaire de l'impact des huîtres Crassostrea gigas (Thunberg) en élevage sur la biomasse des microorganismes des claires de Marennes-Oléron ArchiMer
Zanette, Yvan; Garnier, Jacqueline.
The evolution of microbial biomass based on chlorophyll a, pheopigments, proteins, particulate carbon and nitrogen, ATP and total viable aerobic bacterias measurements, is studied on three oyster ponds in relation with different densities of reared oysters Crassostrea gigas (Thunberg). Chlorophyll a important amounts characteristics of theses middles (13 to 100µg.1(1) are in part consumed when the density of oysters is important, comparatively ATP increase to 30µg.1(1). With important values of (ATP/carbon) 10(3) ratios, upper than 10, we could think that the development of large silicified phytoplanktonic species should be favoured by oysters particularly the diatom Navicula ostrearia (Bory)
Tipo: Text Palavras-chave: Navicula ostrearia; Marennes Oleron; Phytoplanctonic biomass; Microbial biomass; Oysters; Crassostrea gigas; Navicula ostrearia; Marennes Oléron; Claire; Biomasse microbienne; Biomasse phytoplanctonique; Huîtres; Crassostrea gigas.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-2936.pdf
Imagem não selecionada

Imprime registro no formato completo
Evolution saisonnière de la filtration de bivalves intertidaux dans des conditions naturelles ArchiMer
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
Imagem não selecionada

Imprime registro no formato completo
Facteurs contrôlant la croissance de Ruditapes philippinarum dans 4 nurseries de production en Charente-Maritime (France) ArchiMer
Heral, Maurice; Deslous-paoli, Jean-marc; Garnier, Jacqueline; Prioul, Daniel; Heurtebise, Serge; Razet, Daniel.
Different types of pregrowth of the Japanese palourde are compared on the some site. The method by upwelling which is the more common used, to have good growth, requires a compromise between the running and the raised biomass. Two periods are critical, in the summer the growth of mollusks is stopped because of a decrease in the phytoplanktonic production ; in the winter, a fall in temperature lessens filtration and stops growth. The results concern clams consummatation rates of particular food (chlorophyll, protids, lipids, glucids) as weIl as the way to supply the decreasing growth : increase of phytoplankyonic production in the summer by recycling waters from nurseries that are loaded with ammoniac and raise winter temperatures by using under-ground...
Tipo: Text Palavras-chave: Nursery; Growth; Ruditapes philippinarum; Clams; Nurserie; Croissance; Ruditapes philippinarum; Palourdes.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/acte-2951.pdf
Registros recuperados: 34
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional