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Registros recuperados: 36
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Recherches sur Bonamia ostreae gen. n., sp. n., parasite nouveau de l'huitre plate Ostrea edulis L ArchiMer
Pichot, Yves; Comps, Michel; Tige, Gilbert; Grizel, Henri; Rabouin, Marie-agnès.
Unaccustomed mortalities were observed during spring 1979 in flat oysters of Ile-Tudy. A parasite was observed in the blood cells of the oysters causing gill ulcers.
Tipo: Text Palavras-chave: France; ANE; Bonamia ostreae; Ostrea edulis; New species; Parasitic diseases; Oyster culture.
Ano: 1979 URL: http://archimer.ifremer.fr/doc/1979/publication-1833.pdf
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Programme de diversification des productions conchylicoles en Languedoc Roussillon. Projet Huître plate Ostrea edulis. Rapport final ArchiMer
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...
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Ano: 2000 URL: http://archimer.ifremer.fr/doc/00039/15034/12369.pdf
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Contrôle de la maturation et du calendrier d'émission larvaire d'un stock de géniteurs d'huîtres plates Ostrea edulis méditerranéennes. Rapport final ArchiMer
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...
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Ano: 1996 URL: http://archimer.ifremer.fr/doc/00039/15022/12353.pdf
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Sporulation d'Haplosporidium sp. (Haplosporida, Haplosporidiiidae) chez l'huître Ostrea edulis L. du bassin d'Arcachon (France) ArchiMer
Pichot, Yves.
The life cycle of Haplosporidium sp., Haplosporida recently observed in the flat oyster of the bassin d'Arcachon (France), and the spore characteristics of which have already been presented (Pichot et al., 1979), has been studied by electron microscopy. The first stages of sporUïation are represented by two types of plasmodia. After the stage of sporonts, sporogenesis seems to develop according ,~ to two sequences. In a first sequence a cytoplasmic syncytium is formed, followed by the condensation of cytoplasm that would lead to the individualisation of uninucleate sporoblasts and anucleate cytoplasm fragments. The spores could result from the enclosing of the sporoblasts by the cytoplasmic fragments. In a second sequence the spores differenciation happens...
Tipo: Text Palavras-chave: Arcachon; Ostrea edulis; Pathogen of oyster; Haplosporidium sp.; Sporulation; Bassin d'Arcachon; Ostrea edulis; Pathogène Huître; Haplosporidium sp.; Sporulation.
Ano: 1986 URL: https://archimer.ifremer.fr/doc/1986/publication-5916.PDF
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Bilan 2005 du réseau REPAMO - Réseau national de surveillance zoosanitaire des mollusques marins ArchiMer
Garcia, Celine; Arzul, Isabelle; Chollet, Bruno; Ferrand, Sylvie; Francois, Cyrille; Joly, Jean-pierre; Miossec, Laurence; Robert, Maeva; Cuvelier, Nicolas; Lefebvre, Alain; Le Gagneur, Eric; Ropert, Michel; Mouillard, Gilbert; Gerla, Daniel; Le Gal, Dominique; Rocher, Gregory; Langlade, Aime; Bedier, Edouard; Nourry, Max; Martin, Jean-louis; Chabirand, Jean-michel; Fillon, Alain; Robert, Stephane; Courtois, Olivier; D'Amico, Florence; Rumebe, Myriam; Pichot, Yves; Le Gall, Patrik.
Created in 1992, the REPAMO network (Network of mollusc pathology), is a national zoosanitary surveillance network of shellfish health status along the French coasts. Ils activities are in keeping with two European Directives, 91167/EEC and 95170/EC and are a part of the institutional tasks of Ifremer. The aims of the network are to prevent the introduction and spread of exotic pathogens and to sm'vey the evolution of notifiable pathogens already present in France. The network focused on the survey of listed diseases (bonamiosis and marteiliosis of flat oyster) in two areas under agreement process (Granville bed and zone X). In 2005, only samples of the Granville bed could be analysed due to the difflculty to obtain flat oysters (sparse oyster beds, beds...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé; Network; Surveillance; Pathology; Molluscs; Shellfish; Health status.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/00086/19704/17346.pdf
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Recherches sur Haplosporidium sp. (Haplosporida - haplosporidiidae) parasite de l'huitre plate Ostrea edulis L. ArchiMer
Pichot, Yves; Comps, Michel; Deltreil, Jean-pierre.
Tipo: Text Palavras-chave: Ostrea edulis L.; Haplosporida; Biological Characteristics; Parasitology.
Ano: 1980 URL: http://archimer.ifremer.fr/doc/1980/publication-1944.pdf
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Etude électrophorétique des protéines solubles du cristallin de la sardine (Clupea pilchardus Walb.) du Golfe du Lion ArchiMer
Pichot, Paul; Pichot, Yves.
The eye lens proteins electrophoresis of pilchard of the Gulf of Lion (Clupea pilchardus Walb.) shows the existence of 2 sub-populations. The hypothesis of an hereditary control by two co-dominant allels is in agreement with the expected Hardy-Weinberg distribution.
Tipo: Text
Ano: 1977 URL: http://archimer.ifremer.fr/doc/00343/45396/44890.pdf
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Multibeam sonar detection of suspended mussel culture grounds in the open sea: Direct observation methods for management purposes ArchiMer
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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Programme de diversification des productions conchylicoles en Languedoc Roussillon. Projet Huître creuse Crassostrea gigas. Test de triploïdes. Rapport final ArchiMer
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...
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Ano: 2000 URL: http://archimer.ifremer.fr/doc/00039/15039/12373.pdf
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Le Polymorphisme Electrophoretique : Un Moyen d'Etude des Populations. ArchiMer
Pichot, Paul; Pichot, Yves.
The study of biochemical polymorphisms has been known for some years as an important development. The use of a technique called electrophoresis is at the origin of the progress realized in this science. The electrophoretic detection of genetical heterogeneity existing at the level of some biochemical characters of animal species presents an important theorical and practical interest.
Tipo: Text Palavras-chave: Pisces; Overfishing; Stock assessment; Population genetics; Electrophoresis; Biochemical analysis; Analytical techniques.
Ano: 1980 URL: http://archimer.ifremer.fr/doc/1980/publication-1909.pdf
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Bilan 2000 du réseau REPAMO - Réseau National de surveillance zoosanitaire des mollusques marins ArchiMer
Thebault, A; Robert, M.; Chollet, Bruno; Dumais, Muriel; Joly, Jean-pierre; Garcia, C.; Comtet, Thierry; Le Coguic, Matthieu; Martin, Anne-genevieve; Pichot, Yves.
Tipo: Text
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00080/19111/16706.pdf
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Les malaïgues de l'étang de Thau. Tome 2. Relations entre les conditions physico-chimiques, la météorologie et les conditions d'apparition des crises dystrophiques ArchiMer
Hamon, Pierre-yves; Vercelli, Catherine; Pichot, Yves; Lagarde, Franck; Le Gall, Patrik; Oheix, Jocelyne.
In the first volume dystrophie crisis in the Thau lagoon since 1969 are described. In the second volume, meteorological parameters (temperature, wind, atmospheric pressure) are compared during the dystrophie crisis to show if either one or several parameters could explain the emergence of these phenomena . It seems that only a mathematical model could be able to give explanation.
Tipo: Text Palavras-chave: Anoxie; Malaïgue; Météorologie; Lagune de Thau.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00038/14953/12309.pdf
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Situation zoosanitaire des coquillages en Méditerranée (1985-1987) ArchiMer
Comps, Michel; Pichot, Yves.
A zoosanitary survey of the mussels and of the oysters from the mediterranean coast (Languedoc-Roussillon and Corse) has been carried out from 1985 unti11987. This period has been characterized by the stabilization of the enzootie infection caused by Marteilia maurini in the mussel Mytilus galloprovincialis and by the introduction of Bonamia ostreae in the laguna of Thau. New infections (with Rickettsia and Haplosporida) have been observed in the mus sels.
Tipo: Text Palavras-chave: Zoosanitaire; Parasite; Lésion; Zoosanitary; Parasite; Lesion.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00408/51928/52553.pdf
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Réseau de veille zoosanitaire des mollusques REPAMO - Rapport d'activité pour l'année 1997 ArchiMer
Berthe, Franck; Pichot, Yves; Chollet, Bruno; Thebault, Anne; Kuntz, Gregoire; Tige, Gilbert; Thebault, Anne; Fleury, Pierre-gildas; Hirata, Toshio; Le Coguic, Yvette; Renault, Tristan; Lipart, Cecile; Grizel, Henri; Joly, Jean-pierre; Mazurie, Joseph; Baud, Jean-pierre; Goulletquer, Philippe; Dreno, Jean-paul; Buestel, Dominique.
Le réseau de veille zoosanitaire des mollusques, REPAMO, a été créé en 1992 afin de protéger les espèces d'intérêt économique des maladies susceptibles de les affecter. En effet, de même que les autres productions animales, la conchyliculture est frappée par diverses maladies dont certaines se comportent comme des facteurs limitants de la qualité ou de la quantité des productions. L' histoire de l'ostréiculture française a connu de tristes expériences en la matière, notamment dans les années 70 pour l' huître creuse portugaise, Crassostrea angulata ou encore pour l'huître plate, Ostrea edulis. En fait, nous ne disposons que de très peu de possibilités de protéger les mollusques bivalves vis à vis des maladies infectieuses. D' une part, les traitements,...
Tipo: Text Palavras-chave: Réseau surveillance; Pathologie; Mollusques bivalves; Mortalité.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00098/20901/18521.pdf
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Bilans depuis 1999 et évolution de la stratégie du REPAMO ArchiMer
Thebault, Anne; Martin, Anne-genevieve; Pichot, Yves; Chollet, Bruno; Robert, Maeva; Le Coguic, Yvette; Tige, Gilbert; Hirata, Toshio; Mazurie, Joseph; Le Saux, Jean-claude; Masson, Nadine; Auby, Isabelle; Maurer, Daniele; Le Roux, Frédérique; Cochennec, Nathalie; Renault, Tristan; Berthe, Franck; Grizel, Henri.
The main objectives of the Mollusc Pathology Network (REPAMO) are to prevent introductions or outbreaks of infectious agents, prevent spread within a farm and especially from one farm to another, to study ways of decreasing the impact of infectious agent and to monitor the development of these pathogens in order to guarantee the health status of oysters exchanged with our commercial partners. On the whole, REPAMO's activities have not changed and include: - monitoring the development of diseases that have to be reported to authorities and carrying out analyses to classify zones: bonamiosis and marteiliosis; - baseline monitoring of farmed and wild populations of bivalve molluscs; - studying cases of abnormal mortality events; - controlling mollusc...
Tipo: Text Palavras-chave: Mollusques; Réseau surveillance; Pathologie; REPAMO.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3265.pdf
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REseau MOllusques des Rendements Aquacoles de l'huître creuse Crassostrea gigas sur les côtes françaises (REMORA). Résultats de la lagune de Thau pour l'année 2003. ArchiMer
Le Gall, Patrik; Lagarde, Franck; Pichot, Yves; Vercelli, Catherine.
The monitoring network IFREMER/REMORA in Thau lagoon is assessing, on a yearly basis, mortality, growth and quality criteria distributed among 6 stations. Samplings are carried out in March, June, September and December. 2003 is a year with a very important mortality in Mèze and Marseillan area due to an anoxy and an anormal mortality at Bouzigues Nord in december. The growth rate is always better than others French oysters areas. Afnor index is high (beetwen 13.7 and 16.5 in december), so the totality of the oysters are classifed in "Spéciales". Polydora sp. Index is important but the initial stock was first infected. The valve quality is good, with no gelatine, except on Bouzigues South.
Tipo: Text Palavras-chave: REMORA; France; Lagune de Thau; Huître creuse; Crassostrea gigas; Mortalité; Croissance; Qualité; Polydora; REMORA; France; Thau lagoon; Cupped oyster; Crassostrea gigas; Mortality; Growth; Quality; Polydora.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/00113/22384/20079.pdf
Registros recuperados: 36
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