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| Registros recuperados: 24 | |
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| Munaron, Dominique; Dubernet, Jf; Delmas, F; Stanisiere, Jean-yves; Scribe, P. |
| Our study aims at making progress the estimate of herbicide and nutrient inputs to the Marennes-Oleron bay which could influence summer oysters mortalities, and to bring, a better understanding of the impact on coastal ecosystems by modelling the dynamics of these compounds in the shellfish-farming area. The development of a strategy adapted to the river Charente and its estuary reveals that agricultural activity on the watershed area is omnipresent, as well on the level of the nitrogen as on the one of herbicides contributions. It is thus necessary to specify Charente fluxes, which is the main tributary of the Marennes-Oleron bay, in order to better characterize its impact on shell fish-farming activity. Hydrodynamic modelling will constitute an... |
| Tipo: Text |
Palavras-chave: Marennes Oleron bay; River Charente; Modelling; Fluxes; Nutrients; Herbicides. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-3612.pdf |
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| Stanisiere, Jean-yves; Dumas, Franck; Plus, Martin; Maurer, Daniele; Robert, Stephane. |
| Introduction and objectives of the study: Understanding the operating modes of the coastline systems requires the study of the hydrodynamics responsible for transporting the whole of the geobiological compartments of which they are composed. The idea of maintaining a close connexion between the physics, biology, geology and chemistry of the oceans is not new, and was for that matter the subject of a note in the first report of the International Council for the Study of the Oceans (ICSS) in 1902 (Sverdrup et al., 1954): ... it was seen from the beginning that the study of the physical conditions, of the chemical nature of the ocean waters, of the currents, etc., was of the greatest importance for the investigation of the problems connected with life, that... |
| Tipo: Text |
Palavras-chave: France; Atlantic north east; Marennes Oleron basin; Modellling; Hydrodynamic. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2353.pdf |
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| Plus, Martin; Maurer, Daniele; Stanisiere, Jean-yves; Dumas, Franck. |
| Introduction and objectives of the study: Understanding the operation modes of the coastline systems requires the study of the hydrodynamics responsible for transporting the whole of the chemical and biological elements of which they are composed. The idea of maintaining a close connexion between the physics, biology, geology and chemistry of the oceans is not new, and was for that matter the subject of a note in the first report of the International Council for the Study of the Oceans (ICSS) in 1902 (Sverdrup et al., 1954): " it was seen from the beginning that the study of the physical conditions, of the chemical nature of the ocean waters, of the currents, etc., was of the greatest importance for the investigation of the problems connected with life,... |
| Tipo: Text |
Palavras-chave: France; Atlantic north east; Arcachon basin; Modelling; Measuring; Current; Hydrodynamic. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2352.pdf |
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| Le Moine, Olivier; Soletchnik, Patrick; Stanisiere, Jean-yves. |
| Ce rapport présente quelques variables spatialisées issues du modèle hydrodynamique Mars2D, développé dans les pertuis charentais par J.Y Stanisière (Stanisière et al, 2006) : poids des fleuves internes aux pertuis, salinité moyenne et variabilité, impact de dessalure, durée d'immersion, ainsi que certains descripteurs de l'hydrodynamisme tels que les courants. L'étude s'ouvre sur d'autres présentations spatiales (nature des fonds, déplétion trophique) et montre comment ces variables doivent permettre de caractériser des sites d'élevages ou de captage de bivalves dans de futures études |
| Tipo: Text |
Palavras-chave: Modélisation hydrodynamique; Mars2D; Pertuis Charentais; Bassin de Marennes-Oléron; SIG. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00100/21084/18709.pdf |
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| Cossa, Daniel; Abarnou, Alain; Andral, Bruno; Bougrier, Serge; Buestel, Dominique; Claisse, Didier; Hatt, Philippe-jacques; Stanisiere, Jean-yves. |
| Ce rapport fait suite à la création par les directions DEL et DRV de l'IFREMER d'un groupe de travail, dit RlNBIO, chargé d'étudier les implications de l'usage des transplants de populations de moules pour évaluer la contamination chimiques des zones côtières méditerranéennes. L'objectif du Réseau Intégrateurs Biologiques (RlNBIO) est en effet d'obtenir une évaluation des niveaux de la contamination chimique à l'échelle du bassin méditerranéen français. La méthodologie s'appuie sur la mesure des concentrations en contaminants métalliques et organiques bioaccumulés dans les tissus de moules transplantées (Mytilus galloprovincialis) pendant plusieurs dans les zones à étudier. Or, la phase exploratoire a mis en évidence une interdépendance entre les niveaux... |
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| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00086/19715/17356.pdf |
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| Gaussem, Florian; Thebault, Anne; Mazurie, Joseph; Stanisiere, Jean-yves; Cuzzucoli, Diane; Cochennec-laureau, Nathalie. |
| Dans le cadre d’une convention Ifremer-DGAL (2010-2011), une étude épidémiologique et écopathologique intégrative a été conduite en Rivière de Pénerf (Morbihan). Elle a permis de mettre en place un outil d’objectivation pour i) l’évaluation des mortalités par une enquête réalisée auprès de tous les professionnels et pour ii) l’acquisition de données sur la biomasse, les stocks présents (élevés et non élevés) et la bathymétrie du site. Une régression logistique multivariée a permis d’ajuster la relation entre ces variables explicatives et d’étudier toutes leurs combinaisons pour comprendre les différences de mortalité déclarées sur les lots de naissains analysés. Le meilleur modèle prend en compte l’origine du naissain (écloserie, naturel), la date de... |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00119/22996/20827.pdf |
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| Plus, Martin; Dumas, Franck; Stanisiere, Jean-yves; Maurer, Daniele. |
| A numerical model (MARS-2D) was developed, with the aim of describing the hydrodynamics that prevail in Arcachon Bay. Direct model results as well as derived mixing and transport time-scales (tidal prism, local and integrated flushing times, age of water masses), were used to understand the behaviour of water masses and exchanges between the Bay and its frontiers. Particular attention was paid to the processes that drive the hydrodynamics (tides, wind and rivers), in order to understand their respective influence. The Arcachon Bay hydrodynamic system appears primarily to be highly influenced by tides; secondarily, by winds. About two third of the lagoon total volume is flushed in and out at each tidal cycle, which represent a mean tidal prism of 384... |
| Tipo: Text |
Palavras-chave: Arcachon Bay; Tracer; Age of seawater; Flushing time; Tidal prism; Residual fluxes; Hydrodynamics. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6424.pdf |
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| Mazurie, Joseph; Stanisiere, Jean-yves; Bouget, Jean-francois; Langlade, Aime; Leclerc, Emilie; Quinsat, Kevin; Herve, Gilles; Augustin, Jean-marie; Ehrhold, Axel; Sinquin, Jean-marc; Meidi-deviarni, Ika; Goubert, Evelyne; Cochet, Helene; Dreano, Alain. |
| This study (“Risco”), implicating both industry, socio-economic experts and biologists, was funded by the Regional Council of Brittany, for 3 years (2010-2012), to investigate about the causes of oysters (Crassostrea gigas) mortalities in the bay of Quiberon (South Brittany, France). The protocol including both a sonar and video visualization of the bottom, and a monthly survey of 15 experimental oyster structures, allowed to assess the risk due to predation. A clear spatial distribution of the predatory effect was evidenced, with starfish (Asterias rubens and Marthasterias glacialis) predominating in the North-East sector, and boring snails (Ocenebra erinacea and Pterophora inornata) in the South-Center area.. The main mortalities from these predators... |
| Tipo: Text |
Palavras-chave: Baie de Quiberon; Huître; Crassostrea gigas; Risque; Mortalité; Prédation; Étoiles de mer; Bigorneaux perceurs; Risco; Bay of Quiberon; Oyster; Crassostrea gigas; Risk; Mortality; Predation; Starfish; Oyster drills; Risco. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00180/29130/27534.pdf |
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| Mazurie, Joseph; Stanisiere, Jean-yves; Langlade, Aime; Bouget, Jean-francois; Dumas, Franck; Treguier, Cathy; Leclerc, Emilie; Ravaud, Emilie; Quinsat, Kevin; Gabellec, Raoul; Retho, Michael; Cochet, Helene; Dreano, Alain. |
| This study (“Risco”), implicating both industry, socio-economic experts and biologists, was funded by the Regional Council of Brittany, for 3 years (2010-2013), to investigate upon the origin of oysters (Crassostrea gigas) mortalities in the bay of Quiberon (South Brittany, France). Specific mortalities of adult oysters were recorded in this bay in 2006, whereas mortalities of one year old spat were observed since in 2008 in this bay as at a national scale. The experimental protocol in 2010, including a monthly survey of oyster batches at 15 experimental stations, allowed to assess the risk for one-year oysters, due to viral disease. A clear spatial distribution of this risk was evidenced, with a western area spared from contamination and mortality, and a... |
| Tipo: Text |
Palavras-chave: Baie de Quiberon; Crassostrea gigas; Mortalité; Herpès-virus; OsHV-1; Épidémiologie; Modèle.; Quiberon bay; Crassostrea gigas; Mortality; Herpes-virus; OsHV-1; Epidemiology; Model. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00179/29043/27528.pdf |
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| Stanisiere, Jean-yves; Mazurie, Joseph; Bouget, Jean-francois; Langlade, Aime; Gabellec, Raoul; Retho, Michael; Quinsat, Kevin; Leclerc, Emilie; Cugier, Philippe; Dussauze, Morgan; Menesguen, Alain; Dumas, Franck; Gohin, Francis; Augustin, Jean-marie; Ehrhold, Axel; Sinquin, Jean-marc; Goubert, Evelyne; Dreano, Alain. |
| The project “Risco”, supported by the “Pôle Mer” and funded by the Regional Council of Brittany, deals with specific risks of mortality of oysters, Crassostrea gigas, cultivated on the bottom, in a subtidal bay of South Brittany : the bay of Quiberon (56, France). Massive mortalities of oysters were reported in summer 2006 in this bay, exclusively located in the deep muddy area with a positive gradient eastward. A validated biogeochemical model was applied in order to simulate the dissolved oxygen over 2000-2006 : it revealed several episodes of hypoxia, more or less intense according to years, but with the same spatial distribution. This approach proved 2006 to be the most hypoxic year since 2000. The hypoxia was due to a rare conjunction of 3 factors :... |
| Tipo: Text |
Palavras-chave: Baie Quiberon; Crassostrea gigas; Huître; Mortalité; Croissance; Hypoxie; Oxygène; Modèle; Upwelling; Loire; Vilaine; Quiberon; Crassostrea gigas; Oyster; Mortality; Growth; Hypoxia; Oxygen; Model; DEB; Upwelling; Loire; Vilaine. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00180/29131/27535.pdf |
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| Cochennec-laureau, Nathalie; Baud, Jean-pierre; Pepin, Jean-francois; Benabdelmouna, Abdellah; Soletchnik, Patrick; Lupo, Coralie; Garcia, Celine; Arzul, Isabelle; Boudry, Pierre; Huvet, Arnaud; Pernet, Fabrice; Bachere, Evelyne; Bedier, Edouard; Petton, Bruno; Gaussem, Florian; Stanisiere, Jean-yves; Degremont, Lionel. |
| Depuis 2008, la filière ostréicole française doit faire face à des surmortalités exceptionnelles des naissains d’huîtres creuses, Crassostrea gigas, (huîtres de moins d’un an) comprises entre 60 et 90% dans tous les sites d’élevage. Des cas de mortalité similaires ont été décrits en Irlande, dans les îles anglo-normandes, au Portugal en 2009 et au Royaume-Uni en 2010. Récemment deux épisodes de mortalité, associés à la présence d’un virus OsHV1 μvar (ou un variant très proche) ont été également décrits en Nouvelle Zélande (décembre 2010) et en Australie (janvier 2011) soulignant la vulnérabilité de la filière ostréicole dans le monde. L’objectif de ce document est de faire un point sur les recherches menées depuis l’apparition de ce phénomène et de... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00033/14423/11719.pdf |
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| Polsenaere, Pierre; Soletchnik, Patrick; Le Moine, Olivier; Gohin, Francis; Robert, Stephane; Pepin, Jean-francois; Stanisiere, Jean-yves; Dumas, Franck; Bechemin, Christian; Goulletquer, Philippe. |
| In the context of global change, increasing mariculture production has raised particular concerns regarding its environmental impact and sustainability. Molluscs and particularly blue mussel account for a significant part of this total production. Although blue mussels are considered as pretty resilient to environmental disturbances, we report in this study an unprecedented mussel mortality event that occurred during the winter 2014 in the Breton Sound. 9000 metric tonnes of mussels were lost and mortality rates up to 100% were recorded at some farming areas. Through a coupling approach, the present work aimed to better understand the potential environmental drivers associated to those mortalities. Firstly we analysed long-term in situ and satellite data... |
| Tipo: Text |
Palavras-chave: Mytilus edulis mortalities; Climate change; Breton sound; Long-term monitoring; Hydrodynamic modelling; Vibriosis. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00376/48708/49083.pdf |
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| Charria, Guillaume; Repecaud, Michel; Quemener, Loic; Menesguen, Alain; Rimmelin-maury, Peggy; L'Helguen, Stephane; Beaumont, Laurence; Jolivet, Aurelie; Morin, Pascal; Mace, E; Lazure, Pascal; Le Gendre, Romain; Jacqueline, Franck; Verney, Romaric; Marie, Louis; Jegou, Paul; Le Reste, Serge; Andre, Xavier; Dutreuil, Vincent; Regnault, Jean-pierre; Jestin, Herve; Lintanf, Herve; Pichavant, Pascal; Retho, Michael; Allenou, Jean-pierre; Stanisiere, Jean-yves; Bonnat, Armel; Nonnotte, Lidwine; Duros, Wenceslas; Tarot, Stephane; Carval, Thierry; Le Hir, Pierre; Dumas, Franck; Vandermeirsch, Frederic; Lecornu, Fabrice. |
| To design a prototype for an Integrated Ocean Observing System (IOOS), at least three components are mandatory: a modeling platform, an in situ observing system and a structure to collect and to disseminate the information (e.g. database, website). The PREVIMER project followed this approach and in order to sustain model applications, PREVIMER has developed, funded and organized part of in situ observing networks in the Bay of Biscay and the Channel. For a comprehensive system, focus was addressed on fi xed platforms (MAREL MOLIT, MAREL Iroise, Island network and D4 for sediment dynamics), ships of opportunity (RECOPESCA program and FerryBoxes), and coastal profi lers (ARVOR-C/Cm). Each system is briefl y described and examples of scientifi c results... |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00197/30785/29143.pdf |
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| Pouvreau, Stephane; Bernard, Ismael; Le Souchu, Pierrick; Huvet, Arnaud; Talarmain, Eric; Auby, Isabelle; Maurer, Daniele; Barbier, Claire; Tournaire, Marie-pierre; D'Amico, Florence; Rumebe, Myriam; Neaud-masson, Nadine; Bedier, Edouard; Martin, Anne-genevieve; Claude, Serge; Langlade, Aime; Bouget, Jean-francois; Hitier, Benoist; Stanisiere, Jean-yves; Breerette, Stephane; Robert, Stephane; Guilpain, Patrice; Seugnet, Jean-luc; Guesdon, Stephane; Soletchnik, Patrick; Le Moine, Olivier; Dumas, Franck; Quemener, Loic; Barbot, Stephane; Repecaud, Michel; Mille, Dominique; Geay, A; Bouquet, Anne-lise. |
| L’ostréiculture constitue la principale activité aquacole française. Cette activité de quasi-monoculture, basé sur l’élevage de l’huître creuse, Crassostrea gigas, repose en grande partie sur le recrutement naturel de l’espèce qui assure 70% des besoins en jeunes huîtres (naissain). Or, depuis une dizaine d'années, dans les bassins d'Arcachon et de Marennes-Oléron, principaux centres de captage français pour l’huître creuse, la collecte du naissain ou captage devient encore plus variable qu’auparavant: à des années de captage presque nul (par exemple les années 2002, 2005, 2007) succèdent des années où il est surabondant (par exemple les années 2003 ou 2006). En parallèle, et probablement en raison du progressif réchauffement des eaux, la reproduction de... |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00054/16489/13995.pdf |
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| Cochennec-laureau, Nathalie; Bizzozero, Lucie; Blouin, Antoine; Bonneau, Francoise; Bouget, Jean-francois; Collin, Karine; Fortune, Mireille; Gabellec, Raoul; Le Merrer, Yoann; Manach, Soazig; Mellor, Alice; Pierre-duplessix, Olivier; Reboul, Sebastien; Retho, Michael; Schapira, Mathilde; Schmitt, Anne; Souchu, Philippe; Stanisiere, Jean-yves; Treguier, Cathy. |
| Ce rapport présente les activités d'observation et de surveillance de la qualité des eaux littorales du Morbihan, de la Loire Atlantique et du Nord Vendée et les résultats des projets de recherche. |
| Tipo: Text |
Palavras-chave: Réseaux de surveillance et d’observation; Qualité des écosystèmes marins littoraux du Morbihan; Pays de Loire; Microbiologie; Phytoplancton; Eutrophisation; Ressources exploitées; Huîtres; Moules. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00439/55061/56484.pdf |
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| Cochennec-laureau, Nathalie; Bellec, Gwenael; Bizzozero, Lucie; Bonneau, Francoise; Bouget, Jean-francois; Bouvier, Calypso; Collin, Karine; Fortune, Mireille; Gabellec, Raoul; Le Merrer, Yoann; Manach, Soazig; Mellor, Alice; Pierre-duplessix, Olivier; Reboul, Sebastien; Retho, Michael; Roux, Pauline; Schapira, Mathilde; Schmitt, Anne; Souchu, Philippe; Stanisiere, Jean-yves. |
| Activités d’observation, de surveillance de la qualité des eaux littorales du Morbihan, Pays de Loire et Nord Vendée et résultats des projets de recherche 2018 |
| Tipo: Text |
Palavras-chave: Réseaux de surveillance et d’observation; Qualité des écosystèmes marins littoraux du Morbihan; Pays de Loire; Microbiologie; Phytoplancton; Eutrophisation; Ressources exploitées; Huîtres; Moules. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00481/59245/61969.pdf |
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| Registros recuperados: 24 | |
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