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| Registros recuperados: 135 | |
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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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| Martin, Jean-louis; Haure, Joel; Thebault, Anne; Goulletquer, Philippe. |
| The evaluation of the ecological and economical consequences of the hydrocarbon pollution of the Erika implies the setting up of monitorings, analysis and experiments in the short, medium and long term. Among the consequences to be evaluated, a great deal of attention has to be paid to the direct impact on the biology and production performances of the main shellfish species as about 30% of the national production (around 130,000 tons of oysters and 60,000 tons of mussels per year) is cultivated in the impacted area. The main difficulty in evaluating the effects of the contaminants on a distinct part of the ecosystem which is mostly dominated by a cultured population dwells in the different approaches to set up as well as the variability of the answers... |
| Tipo: Text |
Palavras-chave: Pathologie; Ecophysiologie; Conchyliculture; Impact; Hydrocarbures; Pollution. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/acte-3308.pdf |
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| Thomas, Gerard; Kantin, Roger; Heral, Maurice. |
| A coastal river 380 km long, the Charente river has a catchment area of about 10,000 km2, flowing through the departments of Charente and Charente-Maritime, as well as a small part of the border departments: Dordogne, Deux-Sèvres, Haute-Vienne and Vienne. Its main affluents are the Tardoire, the Seugne and the Boutonne rivers. The highest part of the catchment area is located in Dordogne, at a height of 496 m, whereas the river itself originates from a spring located at a height of 250 m to the south-east of Rochechouart, in the Haute-Vienne. The average height of the catchment area is quite low. In its downstream part, from the Saint-Savinien dam to the ocean, the Charente is influenced by a dynamic tide. The actual estuarine part begins in... |
| Tipo: Text |
Palavras-chave: Charente Maritime; Gestion eau; Qualité eaux; Conchyliculture; Capacité trophique; La Charente; Estuaire. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/publication-6289.PDF |
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| Antona, Martine; Bailly, Denis; Paquotte, Philippe; Gabott, M; Gibbs, J; Shaw, S; Harmsma, H. |
| This report includes a qualitative and descriptive approach of the oyster and mussel industries in the European Community. This report compares the structure of production, the marketsn the professional organisation, competition for the resource, legislation and support systemat the community levell. Technical and statistical datas are summarized to représent the structure of the industry, the trade flows and the main evolutions of the two industries in the EC. A summary of the county reports gives an overview of the present state of the industry in each country and suggest a first evaluation of constraints and prospects. [NOT CONTROLLDED OCR] |
| Tipo: Text |
Palavras-chave: SEM; Réglementation; Commerce extérieur; Marché; Production; Europe; Conchyliculture; Regulation; External trade; Markets; Production; Europe; Shellfish culture. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/1993/rapport-4176.pdf |
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| Bonnet, Marc; Troadec, Jean-paul. |
| En France, l'élevage des mollusques est une activité très ancienne dont les premières apparitions empiriques remonteraient au 13ème siècle pour la mytiliculture (origine de la technique du bouchot) et au 17ème siècle pour la culture de l'huître plate (engraissement dans les réservoirs des marais salants de la côte atlantique). Ce n'est cependant qu'à partir du milieu du siècle dernier que cette activité a pris son essor pour suppléer la simple cueillette qui s'exerçait depuis toujours sur les gisements naturels. Cet essor, surtout appréciable à travers l'évolution de l'ostréiculture, semble avoir été au départ consécutif à trois faits essentiels qui se sont déroulés dans les années 1850 à 1870 : - la maîtrise du captage du naissain sur collecteurs, alors... |
| Tipo: Text |
Palavras-chave: Conchyliculture; Economie; Production; Contraintes; Aléas; France. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/00015/12657/9524.pdf |
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| Raimbault, René. |
| Until now, French Mediterranean shellfish culture was only carried out at relatively sheltered sites: some salted lagoons in Languedoc-Roussillon and Corsica and in the roadsted of Toulon The shellfish culture area of the Thau lagoon spreads out over about 1,200 hectares, that of Leucate over 140 hectares; in Corsica, shellfish farming is carried out on small rafts distributed among the different lagoons (around 80 in Diana and 50 in Urbino). In the roadsted of Toulon, most of the farms are about to close down. According to official figures, the Mediterranean production amounts to about 10,000 tonnes. In reality, the Thau lagoon production alone amounts to, at least, double this tonnage (HAMON et TOURNIER, 1981). It corresponds to at least 90 % of the... |
| Tipo: Text |
Palavras-chave: France; Méditerrannée; Développement; Perspectives; Nuisances; Epizooties; Conchyliculture; Elevage. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-6180.PDF |
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| Le Gars, Jean-claude. |
| La "Rivière d'Etel" vaste ria de 2500 ha, a vu naître l'ostréiculture dans ses eaux il y a tout juste un siècle avec l'arrivée de pêcheurs de l'Ile de Groix. Après avoir connu l'élevage des huîtres plates indigènes et des huîtres creuses d'origine portugaise anéanties par plusieurs épizooties, ce centre conchylicole morbihannais s'est essentiellement reconverti à l'élevage et l'affinage des huîtres creuses 'Japonaises". D'autres élevages de coquillages existent tels ceux de coques et de palourdes; 165 professionnels disposent actuellement de 448 ha de Domaine Public Maritime répartis en 745 parcs. Pour diversifier leurs propres productions et satisfaire les acheteurs français et ceux des proches pal.'s étrangers, les conchyliculteurs de la rivière d'Etel... |
| Tipo: Text |
Palavras-chave: Conchyliculture; Pêche à pied; Données socio-économiques; Rivière d'Etel; Morbihan. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00100/21099/18725.pdf |
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| Prou, Jean. |
| Managing the water resource finds a special dimension on the coastal strip. This resource is not shared between the different users according to the classical schemes of catchment areas, linking quality and quantity. The measure of a river water flow turns into currents in the marine field and the freshwater volumes turn into salinity units illustrating the fresh water / salt water mix. As a consequence, in a participative management approach as recommended by the GIZC (Integrated Management of the Coastal Zone) procedures, it seems fundamental that the actors from the terrestrial and marine worlds and their interfaces share their perceptions in order to improve the quality of the management scenarios. This shared perception of the catchment area and... |
| Tipo: Text |
Palavras-chave: Charente Maritime; Pertuis charentais; Gestion eau; Conchyliculture. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/acte-3516.pdf |
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| Le Moine, Olivier; Gohin, Francis. |
| La surveillance de la qualité des eaux littorales assurée par l'IFREMER s'est enrichie de données satellitaires. L'IFREMER a développé un algorithme de traitement de ces données permettant l'évaluation de la richesse phytoplanctonique des eaux et leur cartographie. Les données sources sont les données de réflectance du satellite MODIS (Goddard Space Center, NASA). Le réseau REPHY de surveillance de la flore vient conforter ces résultats. Ces estimations aident à la compréhension de l'écosystème, et à l'explication des croissances et rendements des bivalves en élevage, mission des Laboratoires Environnement Ressource de l'IFREMER. |
| Tipo: Text |
Palavras-chave: Bivalves; Croissance; Phytoplancton; Traitement données; Satellite; Conchyliculture. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/acte-4083.pdf |
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| Grizel, Henri. |
| Shellfish culture is widely spread throughout the world and is the focus of an important activity either as a fishing of shellfish deposits or as a culture. The greatest production areas are Northern America with the United States and Canada. Asia with Japan and Korea, Europe with France, the Netherlands and Spain. At some point, each of these countries has had to face more or less important epizooties of variable durations. Each time, some studies have been carried out to try and find the origin of the disease, understand its evolution and look for solutions to the crisis it lead to. If, in most cases, these mortalities could be linked to the presence of some infectious agents, some phenomena still remained unexplained, the mortalities potentially being... |
| Tipo: Text |
Palavras-chave: Bivalves; Mortalités; Pathologie; Maladie; Conchyliculture; Epizootie. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-6581.pdf |
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| Populus, Jacques; Loubersac, Lionel; Prou, Jean; Kerdreux, Michel; Le Moine, Olivier. |
| In Marennes-Oléron, Héral (1986) described the relationship between the annual production and the oysters' biomass over a century. His conclusion is that the drop in the growth of oysters was caused by an "overstorage" considering the trophic capacity of the basin. Moreover, the large intertidal spaces, though providing a great opportunity for mollusc culture, suffer from a large bio-deposition (Sornin 1983) which tends to intensify the sedimentation of the basin. The spatial management of oyster culture could be a key factor for its long-term development. In collaboration with the French Marine Affairs, in charge of the cadastral management, the IFREMER has developed a geographical information system enabling the gathering under the same geographic... |
| Tipo: Text |
Palavras-chave: Bathymétrie; Cartographie; Modélisation; Conchyliculture; SIG; Système d'Informations Géographique. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/acte-3323.pdf |
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| Registros recuperados: 135 | |
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