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| Registros recuperados: 168 | |
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| Soletchnik, Patrick; Ropert, Michel; Mazurie, Joseph; Fleury, Pierre-gildas; Le Coz, Florence. |
| Oyster mortality was monitored at multiple sites along the French coastline (around 5 500 km) between 1993 and 2005. Mortality data for one- and two-year-old oysters were collected over 1012 years in 39 oyster culture sites bordering 3 different "seas": the English Channel, Bay of Biscaye and Mediterranean. Combining these data with records from environmental monitoring databases, 11 of these sites had consistent chronological data sets including both environmental data and mortality records. Mortality in one-year-old oysters was clearly summer mortality (49% of their annual mortality) whereas mortality of two-year-olds occurred mostly in spring (51%). Analysis of variance revealed that "coastal area" was the main influence on mortality of one-year-olds... |
| Tipo: Text |
Palavras-chave: Mortality; Environment; Crassostrea gigas; Pacific oyster. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3295.pdf |
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| Degremont, Lionel; Bedier, Edouard; Soletchnik, Patrick; Ropert, Michel; Huvet, Arnaud; Moal, Jeanne; Samain, Jean-francois; Boudry, Pierre. |
| Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in different parts of the world. The causes of this phenomenon are complex. The multidisciplinary program "MOREST", coordinated by IFREMER, was initiated to understand the causes of summer mortality of Crassostrea gigas juveniles in France and to reduce its impact on oyster production. Within this program, three successive groups of bi-parental families were bred in a hatchery in 2001 and placed in the field during summer in three sites (Ronce, Riviere d'Auray, and Baie des Veys). This paper reports the relative importance of family, site and field placement timing for three characters of major importance for oyster production: survival, growth, and yield. At the... |
| Tipo: Text |
Palavras-chave: Juvenile; Crassostrea gigas; Oysters; Yield; Growth; Survival. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1693.pdf |
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| Robert, Stephane; Geairon, Philippe; Guilpain, Patrice; Razet, Daniel; Faury, Nicole; Seugnet, Jean-luc; Grizon, James; Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe. |
| A production monitoring network focused on the blue mussel Mytilus edulis, was developed at the Charentais sounds' geographic level to assess the spatial and temporal variability of the mussel production. Similarly to the oyster growth monitoring network REMORA, an homogeneous and calibrated mussel population (L = 35.5 mm, TW = 3.35 g) was distributed into six rearing sites, representative of the sounds production. The rearing technics were compared and intercalibrated with previous growout facilities used for preliminary trials (round bags-oyster bags). The monitoring was based upon biometric and biochemical measurements on a 3 month and monthly basis, for ail and 3 sites respectively. The mortality rates showed a significant spatial and temporal... |
| Tipo: Text |
Palavras-chave: Réseau de croissance; Mytilus edulis; Composition biochimique; Mortalité; Pertuis Charentais; Charente-Maritime; Production monitoring network; Mytilus edulis; Proximate biochemical composition; Mortality rate; Charentais sounds; Charente-Maritime. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00031/14243/11518.pdf |
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| Robert, Stephane; Guilpain, Patrice; Grizon, James; Garen, Pierre; Geairon, Philippe; Razet, Daniel; Faury, Nicole; Seugnet, Jean-luc; Soletchnik, Patrick; Le Moine, Olivier; Taillade, Sylvie. |
| La mise en place d'un réseau de suivi de croissance des moules dans les Pertuis Charentais s' inscrit dans la démarche de contractualisation de l'IFREMER (Laboratoire Conchylicole de Poitou-Charentes) avec la Section Régionale Conchylicole de Poitou-Charentes. Les intérêts de la profession pour ce réseau sont multiples : l'évolution du classement des zones d'élevage et les baisses de rendement commerciaux annoncées (bouchots) sur les littoraux charentais et vendéen ces dernières années doivent pouvoir être encadrées par des mesures de référence historique, et explicatives. De cette manière, les informations de ce réseau pourront servir d'outil d'aide à la décision pour la profession pour une gestion du milieu optimisée. Les informations obtenues par les... |
| Tipo: Text |
Palavras-chave: Réseau de surveillance; REMORA; Moules; Mytilus edulis; Croissance; Mortalité; Pertuis Charentais. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00251/36234/34795.pdf |
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| Robert, Stephane; Guilpain, Patrice; Grizon, James; Geairon, Philippe; Razet, Daniel; Garen, Pierre; Faury, Nicole; Seugnet, Jean-luc; Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe; Taillade, Sylvie. |
| Le réseau de suivi de croissance des moules dans les Pertuis Charentais a 3 ans d 'existence. L'année 2002 n'est pas une bonne année de croissance. Les mesures de gain de poids moyen journalier saisonnier soulignent un fort retard de croissance pour la période printanière (0,35 en 2002 contre 0,38 en 2001 et 0,69 en 2000). Ce manque de croissance n' est pas récupéré en été et reste équivalent à celui de 2001 (0,30). L'automne montre des résultats très variables, à l'avantage de l'élevage sur filières. La mortalité moyenne (20%) enregistrée en décembre 2002, atteint le même niveau qu 'en 2001, nettement supérieur à celui enregistré à la même date en 2000 ( 14%). Deux indices qualités sont proposés comme référence au remplissage du produit destiné à la vente... |
| Tipo: Text |
Palavras-chave: REMOULA; Réseau; Mytilus edulis; Croissance; Mortalité; Production; Qualité; France; Pertuis charentais. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00072/18365/15937.pdf |
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| Soletchnik, Patrick. |
| This study is based on catched larvae data base produced since C. gigas was first imported into the Charentais Sounds (late 1960s, early 1970s). The method for catching larvae using a towed net remained unchanged between 1950 and 1998. Four sites have been sampled in the Bay since 1970, two situated in the Seudre estuary and two in the middle of the Bay. Two other sites from near the mouth of the Charente River have been sampled since 1982. For each sample, oyster larvae were counted in four size classes, from the young larva (1-4 days) to near metamorphosis (16-20 days). Each year, 100 to 150 captures were carried out at all sample sites between June and September. Captures from July and August represent 99% of the total. The main variables were: capture... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Marennes Oléron Bassin; Pertuis Charentais; Analyse spatio temporelle; Recrutement; Saison; Larve; Ponte; Huîtrs; Reproduction. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2008/rapport-4125.pdf |
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| Le Moine, Olivier; Geairon, Philippe; Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe; Robert, Stephane; Razet, Daniel; Heurtebise, Serge. |
| Thiis report aims to study the oyster Crwsosrrea gigas growth and production over a 12 years time' s span in the bay of Marennes-DIeron. Results of 12 years of oyster growlh did not show any significant oyster biological productivity decrease, nor trend. ln contrast, annual growth showed a large variability, which will be correlated with environmental conditions. Moreover, annual growth variability was greater than the variability due to site location,. besides the Ronce experimental site. The later, located in the south west part of the bay of Marennes-Dleron, has been the leading oyster growth site since 1989. The annual shell growlh variabiliry was greater than oyster dry meat weight fluctuation . Both 1990 and 1991 years were characterized by the... |
| Tipo: Text |
Palavras-chave: Réseau de surveillance; Croissance; Composition biochimique; Mortalité; Crassostrea gigas; Bassin de Marennes-Oléron; Charente-Maritime; Monitoring network; Growth; Biochemical composition; Mortality rate; Crassostrea gigas; Bay of Marennes Oleron; Charente-Maritime. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00031/14244/11520.pdf |
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| Robert, Stephane; Bouget, Jean-francois; Fleury, Elodie; Chauvin, Jacky; Gagnery, Aline; Normand, Julien; Blin, Jean Louis; Cheve, Julien; Dagault, Francoise; Gerla, Daniel; Lejolivet, Aurore; Penot, Julia; Chabirand, Jean-michel; Genauzeau, Sylvie; Geairon, Philippe; Grizon, James; Le Moine, Olivier; Schmitt-gallotti, Anne; Seugnet, Jean-luc; Soletchnik, Patrick. |
| Le réseau national Mytilobs est implanté dans les principales régions mytilicoles du littoral atlantique : Normandie, Bretagne Nord, Bretagne Sud, Pays de Loire et Poitou-Charentes. Les sites d’Agon (Ouest Cotentin), du Vivier (baie du Mont Saint-Michel), de Pont Mahé (baie de Vilaine), de l’Aiguillon (pertuis Breton), d’Yves (pertuis d’Antioche) représentent l'élevage sur bouchot du Nord au Sud. Le site Filière (pertuis Breton) représente l’élevage sur corde, en pleine eau. La mise à l’eau des cheptels sur l’ensemble des sites du réseau, en septembre 2013, s’est faite à partir d’un même lot de moules calibrées (23,97 +/- 0,7mm), captées sur corde dans le pertuis Breton. Les prélèvements de la campagne 2014 (septembre 2013-décembre 2014) sont trimestriels.... |
| Tipo: Text |
Palavras-chave: Mytilus edulis; Moule; Bouchot; Mortalité; Croissance; Température; Phytoplancton; Réseau; Biométrie; Environnement. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00270/38086/36231.pdf |
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| Robert, Stephane; Soletchnik, Patrick. |
| Le réseau national Mytilobs est implanté dans les principales régions mytilicoles du littoral atlantique : Normandie, Bretagne Nord, Bretagne Sud, Pays de Loire et Poitou-Charentes. Les sites d’Agon (Ouest Cotentin), du Vivier (baie du Mont Saint-Michel), de Pont Mahé (baie de Vilaine), de l’Aiguillon et des Roulières (pertuis Breton), d’Yves et de Boyard (pertuis d’Antioche) représentent l'élevage sur bouchot du Nord au Sud. Le site Filière (pertuis Breton) représente l’élevage sur corde, en pleine eau. La mise à l’eau des cheptels sur l’ensemble des sites du réseau, en septembre 2014, s’est faite à partir d’un même lot de moules calibrées (25,54 +/- 0,7mm), captées sur corde dans la baie d’Yves. Les prélèvements trimestriels de la campagne 2015... |
| Tipo: Text |
Palavras-chave: Mytilus edulis; Moule; Réseau; Elevage; Bouchot; Mortalité; Croissance; Température; Phytoplancton; Biométrie; Environnement. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00334/44494/44177.pdf |
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| Soletchnik, Patrick. |
| The Marennes-Oléron Bay on the Atlantic coast is a major oyster culture centre in France. 40 000 tonnes of cupped oysters are produced there each year. The two taxa C. angulata and C. gigas have been cultured in turn over the last century. Since 1950, larvae have been captured between June and September in the southern part of the Bay, near the mouth of the Seudre River, the traditional oyster spat capture zone. This historical database shows that the frequency of larvae capture is defined by three to four peaks in larvae emission in C. angulata and only two peaks for C. gigas during a single season. Seventeen years of data on C. angulata between 1950 and 1969 and 27 years for C. gigas between 1972 and 2000 demonstrate that the beginning of the spawning... |
| Tipo: Text |
Palavras-chave: Crassostrea angulata; Crassostrea gigas; Marennes Oléron bassin; Pertuis Charentais; Environnement; Huître creuse; Reproduction. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2008/rapport-4126.pdf |
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| Soletchnik, Patrick; Robert, Stephane; Le Moine, Olivier. |
| L’étude constitue une analyse du réseau de suivi de la croissance de la moule bleue (Mytilus edulis) dans les pertuis charentais (réseau REMOULA) en 2000-2010, sur 5 sites expérimentaux des principaux bouchots des pertuis. Elle comprend une analyse environnementale et une série d’analyses multivariées pour tenter d’expliquer les relations entre l’environnement et la croissance des moules. L’environnement est analysé à l’aide d’un large panel de variables météorologiques, hydrodynamiques et hydrobiologiques. Un des objectifs de l’étude est d’évaluer le poids de la variabilité inter annuelle de la croissance (effet année) au regard de la localisation géographique des élevages (effet site). Dans cette étude, quelques années : 2005, 2007 et 2010 apparaissent... |
| Tipo: Text |
Palavras-chave: Moule; Mytilus edulis; Pertuis Charentais; Marennes Oléron. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00120/23097/20946.pdf |
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| Degremont, Lionel; Bedier, Edouard; Soletchnik, Patrick; Ropert, Michel; Samain, Jean-francois; Boudry, Pierre. |
| The French project "Morest", coordinated by IFREMER, aims to a better understanding of the causes of summer mortalities in juvenile oysters by a multidisciplinary approach. Within this program, a first generation (G1) was bred in 2001 to assess to what extent genetic variability exists for this trait in French populations. 17 half-sib families (HSF) including 44 full-sib families (FSF) were obtained in the G1, and each FSF was reared in three sites along the French coast during the summer period. Significant differences in survival were observed among HSF, clearly indicating a genetic basis for survival. Estimation of heritability for survival was very high: 0.81  0.29. In 2002, 3 "good" HSF and 3 "bad" HSF were selected on their survival... |
| Tipo: Text |
Palavras-chave: Selection; Genetic; Mortalities; Crassostrea gigas; Oyster. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/acte-3439.pdf |
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| Soletchnik, Patrick; Lambert, Christian; Costil, Katherine. |
| The purpose of this study is to investigate summer mortality of the cupped oyster, Crassostrea gigas, in relation to culture practices in the traditional oyster production region of Marennes-Oleron (France). Four oyster rearing conditions, varying culture location ("on-" or "off-bottom"), and site depth (65% to 80% daily immersion termed "deep" or 45% to 65%, termed "shallow") were studied to compare biologic performance and maturation status of oysters, in relation to sediment and water column parameters. The most severe mortality occurred in June to July in "on-bottom" reared oysters (25%), as compared with 10% mortality in "off-bottom" cultured oysters. Oysters (shell and meat) grew significantly better when reared "off-bottom" than "on-bottom."... |
| Tipo: Text |
Palavras-chave: Summer mortality; Hydrology; Sediment; Marine ecosystem; Marennes Oleron Bay; Crassostrea gigas. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3171.pdf |
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| Degremont, Lionel; Soletchnik, Patrick; Boudry, Pierre. |
| This study reports mortality under laboratory conditions in unselected controls and two lines of juvenile Pacific oysters Crassostrea gigas, previously selected for their high or low survival in the field during the summer period. Oysters were also deployed in field conditions and mortality between both conditions was then compared. In the laboratory, mortality was observed in all experiments and it always lasted for a week indicating that mortality under laboratory conditions was a short-term event. It was also shown that mortality could be repeated for a batch in several experiments using oysters which never experienced any abnormal mortality. This approach could facilitate further studies to investigate the causes of mortality by allowing repeated... |
| Tipo: Text |
Palavras-chave: Summer mortality; Crassostrea gigas; Laboratory; Field; Oyster; Juvenile. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00013/12432/9228.pdf |
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| Registros recuperados: 168 | |
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