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Registros recuperados: 24 | |
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Fleury, Pierre-gildas; Ruelle, Francois; Claude, Serge; Palvadeau, Hubert; Robert, Stephane; D'Amico, Florence; Vercelli, Catherine; Chabirand, Jean-michel. |
1. Introduction: network organisation in 1997. The REMORA network - REseau MOIIusques du département Ressources Aquacoles de l'Ifremer - (Ifremer's Aquaculture Resources Department Mollusc Network) has been evaluating, since 1993, hollow oysters' growth (Crassostrea gigas) in major French oyster beds. In order to do so, it has followed up on a yearly basis the growth of a unique oyster batch shared among different stations in the main French raising areas. Releasing takes place in February and picking happens in November or December; intermediary sampling is done in June and September. All operations happen on the same dates for all stations. A national report is published each year. 'Regional' stations are sometimes added to the national network, but they... |
Tipo: Text |
Palavras-chave: France; Growth; Network of monitoring; Crassostrea gigas; Oyster culture. |
Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/1998/rapport-1765.pdf |
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Fleury, Pierre-gildas; Cornette, Florence; Claude, Serge; Palvadeau, Hubert; Robert, Stephane; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine; Pien, S. |
The monitoring network IFREMER /REMORA is assessing, on a yearly basis, mortality, growth and quality criteria of two oyster batches ("juveniles" = one-year old ; and "adults" = two-years old), distributed among various stations of the main French oyster areas. Samplings are carried out in March, June, September and December. This network is a tool for trend estimations (geographic and chronological, on the national scale) ; it must not be considered as an accurate estimation of professional oyster ongrowings. In 2001, mortality mainly occured in Summer on "adults" in baie des Veys (Normandy) and on juveniles in Cancale and Pénerf (Brittany) and in Fouras and Marennes (Poitou-Charentes). With an average individual weigh of 59 g in December, 2001 has been a... |
Tipo: Text |
Palavras-chave: Polydora; Quality; Growth; Mortality; Crassostrea gigas; Cupped (gigas) oyster; France; REMORA; Polydora; Qualité; Croissance; Mortalité; Crassostrea gigas; Huître creuse; France; REMORA. |
Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/rapport-2438.pdf |
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Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Claude, Serge; Langlade, Aime; Joly, Jean-pierre; Goulletquer, Philippe; Ruelle, Francois; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Maurer, Daniele; Borel, Michel; Cardinal, Mireille; Cornet, Josiane; Le Pennec, Marcel; Le Mercier, A.. |
This fifth part of the polyploidisation program reports the experiments that were conducted in 1993 and that were devoted to : - monitoring growth performance of Ostrea edulis diploids and triploids in La Trinité sur Mer and Palavas - monitoring growth performance of Crassostrea gigas diploids and triploids in Port en Bessin, Marennes Oleron (2 locations), Arcachon and Palavas - comparative study of gametogenesis for C. gigas diploids and triploids - comparative study of C. gigas diploids and triploids using sensorial analysis At the end of fifth year, it was clear that triploids are advantageous although such a statement must be moderated according to locations. The gametogenesis stydy showed that triploidy is associated with partial to complete... |
Tipo: Text |
Palavras-chave: Crassostrea gigas; Ostrea edulis; Cytogenetics; Polyploidy; Crassostra gigas; Ostrea edulis; Cytogénétique; Polyploïdie. |
Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-3860.PDF |
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Le Gall, Patrik; Lagarde, Franck; Pichot, Yves; Grizel, Henri; Hamon, Pierre-yves; Vercelli, Catherine. |
This report presents the main results for 2002 of the eight points in the Lagune de Thau, in accordance with the monitoring network REMORA: 3 national points and 5 regional added by the «Laboratoire Conchylicole de Méditerranée». Only adults batch is observed in the Mediterranean sea. This year the mortality ratio is low (< 5 %), without significant differences between areas. Like for the whole national network, the average individual weight are less than previous years in Bouzigues and Marseillan area ; in opposite Mèze area has better results. Bouzigues area presents the best productivity rate (3.1) and the worst in the middle of the zone. The AFNOR index, calculed in December, allows to classify the oysters like "spéciales". The best values are... |
Tipo: Text |
Palavras-chave: REMORA; Méditerranée.; Huître creuse; Crassastrea gigas; Mortalité; Qualité; France; Lagune de Thau; Croissance; REMORA; France; Mediterranean Sea; Lagune de Thau; Crassos/rea gigas; Mortality; Growth; Quality; Polvdora sv.. |
Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00113/22385/20080.pdf |
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Fleury, Pierre-gildas; Cornette, Florence; Claude, Serge; Palvadeau, Hubert; Robert, Stéphane; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine. |
The monitoring network IFREMER /REMORA is assessing, on a yearly basis, mortality, growth and quality criteria of two oyster batches ("juveniles" = one-year old ; and "adults" = two-years old), distributed among various stations of the main French oyster areas. Samplings are carried out in March, June, September and December. This network is a tool for trend estimations (geographic and chronological, on the national scale) ; it must not be considered as an accurate estimation of professional oyster ongrowings. With the exception of Spring mortalities due to poor initial quality of adult oysters and to difficulties in the counting of juveniles, the year 2000 appeared to be a year of low mortality. 2000 is a year of poor growth (61.5 g in average weight in... |
Tipo: Text |
Palavras-chave: Polydora; Quality; Growth; Mortality; Crassostrea gigas; Cupped (gigas) oyster; France; REMORA; Polydora; Qualité; Croissance; Mortality; Crassostrea gigas; Huître creuse; France; REMORA. |
Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/rapport-1635.pdf |
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Fleury, Pierre-gildas; Cornette, Florence; Claude, Serge; Palvadeau, Hubert; Robert, Stéphane; Vercelli, Catherine; Chabirand, Jean-michel; D'Amico, Florence. |
The monitoring network IFREMER /REMORA is assessing, on a yearly basis, mortality, growth and quality criteria of two oyster batches ("juveniles" = one-year old ; and "adults" = two-years old), distributed among various stations of the main French oyster areas. Samplings are carried out in February, June, September and December (late November in 1999). This network is a tool for trend estimations (geographic and chronological, on the national scale) ; it must not be considered as an accurate estimation of professional oyster ongrowings. Based on REMORA results, generally tallied with professional observations, and with comparison to previous years, 1999 exhibited mortality in adults (23%) and poor growth in both adults (63.0 g in late November) and... |
Tipo: Text |
Palavras-chave: Polydora Quality Growth Mortality Crassosirea gigas Pacific cupped oyster France REMORA; Polydora Qualité Croissance Mortalité Crassosirea gigas Huître creuse France REMORA. |
Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/rapport-1634.pdf |
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Fleury, Pierre-gildas; Simonne, Charlotte; Claude, Serge; Palvadeau, Hubert; Guilpain, Patrice; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine; Pien, S. |
The monitoring network IFREMER /REMORA is assessing, on a yearly basis two oyster batches ("juveniles" = one-year old ; and "adults" = two-years old), distributed among various stations of the main French oyster areas. Samplings are carried out in March, June, September and December. In this way this network assess seasonal mortality, growth and quality of cupped oysters, in which it is a tool for trend estimations, and then for ecosystem management or scientific studies. However, it must not be considered as an accurate estimation of professional oyster ongrowings. 2002 has been a year of very few mortality (6% in average for "adults" and 11% for juveniles). Only 2 batches were over 15% mortality. The mortality is a bit higher in juveniles batches' with 5... |
Tipo: Text |
Palavras-chave: Polydora; Quality; Growth; Mortality; Crassostrea gigas; Cupped (gigas) oyster; France; REMORA; Polydora; Qualité; Croissance; Mortalité; Crassostrea gigas; Huître creuse; France; REMORA. |
Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/rapport-2439.pdf |
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Goyard, Emmanuel; Baud, Jean-pierre; Claude, Serge; Le Moine, Olivier; Maurer, Daniele; Mazurie, Joseph; Ruelle, Francois; Vercelli, Catherine. |
The Aquaculture Resources Department's mollusc network (REMORA) federates six coastal Ifremer laboratories. Since 1993, REMORA has implemented a unique national protocol to account for the variability in the growth of Pacific oysters farmed in 39 sites within the main production areas, from Normandy to the Mediterranean Sea. In 1995, the goal of the network was expanded to include monitoring of a second age class. To do so, the protocol developed for adults was adapted to monitor juveniles. The data, organised in Excel worksheets with a specific application written in Visual Basic, allows for inter-station and inter-annual comparisons and thereby constitutes a database of interest to oyster farmers, scientists and administrative personnel. |
Tipo: Text |
Palavras-chave: REMORA; Crassostrea gigas; Huîtres; Croissance. |
Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/acte-3255.pdf |
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Buestel, Dominique; Alunno Bruscia, Marianne; Chabirand, Jean-michel; Vercelli, Catherine; Oheix, Jocelyne; Pichot, Yves; Gangnery, Aline. |
La densité d'élevage des mollusques est un des facteurs importants qui conditionnent la qualité de la production. Dans le bassin de Thau, une réflexion est actuellement en cours pour mettre en place un schéma des structures encadrant les pratiques conchylicoles de manière à améliorer et régulariser la qualité des huîtres. L'objectif de ce travail est de proposer, sur la base de données les plus objectives possibles, des recommandations en terme de densité d'élevage qui permettraient d'éviter une surcharge aussi bien locale que globale sur le bassin. Une première étude a consisté à réaliser une expérience, à l'échelle d'une table d'élevage, pour tester l'influence de la densité de population sur la croissance et la qualité de l'huître creuse (Crassostrea... |
Tipo: Text |
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Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00039/15031/12366.pdf |
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Fleury, Pierre-gildas; Simonne, Charlotte; Claude, Serge; Palvadeau, Hubert; Guilpain, Patrice; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine; Pien, C. |
The network REMORA by IFREMER quarterly follows each year 2 batches of Pacific cupped oysters Crassostrea gigas ("juveniles"= 1 year old; and "adults" = 2 years old) on various sites among the main French oyster areas. The network monitored 46 sites in 2004, including the 7 new sites added in 2003. The network REMORA thus assess seasonal survival, growth and quality of cupped oysters. It is a tool for trend estimations, ecosystem management and a reference frame for scientific studies. Globally speaking, the year 2004 was a good year for oyster farming, with a low mortality and a fast growth. The rearing yield (survival x growth) reached 2.0 for adults instead of 1.8 usually. However, the meat index remained close to the average inter annual data.... |
Tipo: Text |
Palavras-chave: Polydora; Quality; Growth; Mortality; Crassostrea gigas; Pacific Cupped oyster; France; REMORA; Polydora; Qualité; Croissance; Mortalité; Crassostrea gigas; Huître creuse; France; REMORA. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/rapport-2413.pdf |
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Vercelli, Catherine; Oheix, Jocelyne; Chabirand, Jean-michel; Pichot, Yves; Buestel, Dominique. |
Synthèse des travaux antérieurs : Depuis 1970, l’I.S.T.P.M. puis l'IFREMER (Equipe Diversification Conchylicole en Mer Ouverte, puis Laboratoire Conchylicole de Méditerranée) ont effectué de nombreux travaux pour tenter de développer la culture locale de l'huître plate. La problématique de cette filière d'élevage, pour laquelle existe une demande importante, se situe à deux niveaux : l'approvisionnement en naissain et la mortalité durant l'élevage dans l'étang de Thau. Pendant la période 1982-1991 : les études ont porté essentiellement sur l'approvisionnement en naissain, avec l'évaluation du potentiel offert par le captage naturel. Une attention particulière a été également portée à la définition des structures et des supports les mieux adaptés aux... |
Tipo: Text |
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Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00039/15034/12369.pdf |
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Coatanea, Denis; Vercelli, Catherine; Chabirand, Jean-michel; Oheix, Jocelyne; Pichot, Yves; Hirata, Toshio. |
Depuis 1991, différents aspects de l'élevage de l'huître plate Ostrea edulis ont été étudiés dans le cadre des programmes de Diversification Conchylicole de la Station IFREMER de Palavas. Après avoir abordé successivement le potentiel du captage naturel, la technique du télécaptage, la mise au point d'un parcours d'élevage mixte mer-étang et le cycle de reproduction de cette espèce dans le milieu naturel, les travaux ont porté, en 1994, sur le contrôle de la maturation en captivité et la maîtrise du calendrier des émissions larvaires. Les mêmes expérimentations, répétées en 1995, ont été complétées par des essais portant sur la compression du cycle de reproduction. Une installation thermorégulée de conditionnement en circuit fermé a permis d'obtenir un... |
Tipo: Text |
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Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00039/15022/12353.pdf |
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Fleury, Pierre-gildas; Simonne, Charlotte; Claude, Serge; Palvadeau, Hubert; Guilpain, Patrice; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine; Pien, S. |
The network IFREMER/REMORA quarterly follows each year 2 batches of Pacific cupped oysters Crassostrea gigas ("juveniles"= 1 year old; and "adults" = 2 years old) on various sites among the main French oyster areas. The network monitors 46 sites, including 7 new sites added in 2003 to the network. The network REMORA thus assess seasonal survival, growth and quality of cupped oyster oysters. It is a tool for trend estimations, ecosystem management and a reference frame for scientific studies. In spite of the heat wave of the summer, rearing performances in 2003 were close to the average inter annual 1994-2003 data. The rearing yield reached 1.8 for the adults. Summer mortalities remained limited, except for juveniles in some sites (Blainville, Morlaix, Ré,... |
Tipo: Text |
Palavras-chave: Polydora quality growth mortality Crassostrea gigas Cupped oyster France REMORA Polydora qualité croissance mortalité Crassostrea gigas Huître creuse REMORA; France. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/rapport-2412.pdf |
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Brehmer, Patrice; Vercelli, Catherine; Gerlotto, Francois; Sanguinede, Fabien; Pichot, Yves; Guennegan, Yvon; Buestel, Dominique. |
The exploitation of offshore mussel farms is becoming important throughout the world, but monitoring this activity remains a difficult task. Here, we propose a specific method for this purpose. A total of 140 long-lines were monitored on a mussel culture ground in the French Mediterranean Sea during four experimental surveys deploying multibeam sonar devices mounted on poles (Reson Seabat 6012, 455 kHz) on small boats. This allowed geo-referenced observations to be made of the submerged mussel long-lines, as well as three-dimensional (3D) drawings of the long-line structures and the sea bed shapes, using long-line longitudinal sonar sampling. Three sonar data-analysis methods were applied: (i) direct two-dimensional (2D) visual interpretation of raw sonar... |
Tipo: Text |
Palavras-chave: Management; Sonar; Open sea; Long line; Mussel. |
Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1672.pdf |
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Vercelli, Catherine; Chabirand, Jean-michel; Oheix, Jocelyne; Pichot, Yves; Buestel, Dominique. |
L'expérimentation mise en œuvre dans l'étang de Thau a permis de comparer, à une échelle la plus proche possible de celle des exploitations commerciales, les performances zootechniques d'une population d'huîtres triploïdes à celles d'une population témoin diploïde d'écloserie ainsi qu'à celles d'une population issue du captage naturel. Le gain moyen de poids total sur 6 mois entre février et septembre 1998 est respectivement de 100, 70 et 62 g pour les huîtres triploïdes, diploïdes témoins d'écloserie et diploïdes naturelles, confirmant la nette supériorité de croissance des huîtres triploïdes. Du point de vue de la qualité de la chair, le taux de remplissage des triploïdes est resté moyen (indice AFNOR de 8 à 10) comparable à celui des diploïdes témoins... |
Tipo: Text |
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Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00039/15039/12373.pdf |
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Alunno Bruscia, Marianne; Vercelli, Catherine; Chabirand, Jean-michel; Oheix, Jocelyne; Buestel, Dominique. |
We grew Pacific oysters (Crassostrea gigas) in a French Mediterranean coastal breeding area, the Thau lagoon, to examine the influence of stocking density on their growth and quality (i.e. condition index and biochemical composition). Oysters were reared on ropes suspended on a culture table for 15 months between March 1999 to June 2000 at 8 different densities involving two cross factors: the number of ropes per square (NR, i.e. 30, 50,65 and 100 ropes) and the number of oysters per rope (NO, i.e. 78 and 120 oysters). Environmental variables (temperature, salinity, dissolved O2) and trophic conditions (chlorophyll a, suspended particulate matter) were estimated fortnightly to characterise conditions prevailing inside as well as around the experimental... |
Tipo: Text |
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Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00039/15029/12363.pdf |
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Coatanea, Denis; Chabirand, Jean-michel; Vercelli, Catherine; Oheix, Jocelyne. |
Afin de vérifier sur un site régional la présence d'une qualité d'eau de mer permettant la réalisation d'élevages larvaires d'huîtres creuses Crassostrea gigas (et/ou d'huîtres plates Ostrea edulis) sur une base régulière tout au long de l'année, une série d'élevages comparatifs a été réalisée à la Station IFREMER de Palavas, de mars 1995 à septembre 1995. Le matériel biologique nécessaire à cette comparaison est constitué de larves d'huîtres creuses Crassostrea gigas et en algues unicellulaires provenant de l'éc1oserie commerciale de la SATMAR. Les résultats obtenus démontrent la capacité de l'eau de mer du site étudié sur Leucate à supporter la production de larves d'huîtres creuses compétentes à se métamorphoser et à se fixer. Cette étude s'inscrit dans... |
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Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00347/45796/45442.pdf |
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Registros recuperados: 24 | |
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