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A herpes-like virus infects a non-ostreid bivalve species: virus replication in Ruditapes philippinarum larvae ArchiMer
Renault, Tristan; Lipart, Cecile; Arzul, Isabelle.
Sporadic high mortalities were reported in June 1997 among hatchery-reared larval Manila clam Ruditapes philippinarum in a French commercial hatchery. Cellular abnormalities were observed in semi-thin sections in affected animals. Transmission electron microscopy revealed the presence of herpes-like virus particles in larvae. This is the first description of a herpes-like virus infection in larval R. philippinarum, a non-ostreid bivalve species. Virus particles were similar to other herpes-like viruses described from different oyster species with respect to ultrastructure and morphogenesis. Electron microscopic examination also demonstrated cells with condensed chromatin and extensive perinuclear fragmentation of chromatin. Like viruses infecting oysters,...
Tipo: Text Palavras-chave: Apoptosis; Virus replication; Mortality; Ruditapes philippinarum; Manila clam; Herpes like virus.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-816.pdf
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A literature review as an aid to identify strategies for mitigating ostreid herpesvirus 1 in Crassostrea gigas hatchery and nursery systems ArchiMer
Rodgers, Chris; Arzul, Isabelle; Carrasco, Noèlia; Furones Nozal, Dolores.
An understanding of husbandry strategies and any associated risk factors is important for designing management control measures that can reduce mortality in Pacific oysters, Crassostrea gigas, caused by ostreid  herpesvirus 1 (OsHV-1). The type of culture facility can be considered in relation to the potential pathways that could lead to the entry of a pathogen and its survival. In addition, the animal host (e.g. age, physiological state,  selective breeding programmes), husbandry procedures (e.g. stocking density), the pathogen itself (e.g. pathogenicity, virulence) and environmental effects (e.g. temperature) represent other relevant interconnected factors. However, all these factors provide valuable background information for outlining the mitigation...
Tipo: Text Palavras-chave: Crassostrea gigas; Husbandry; Management strategies; Ostreid herpesvirus 1; Oyster herpesvirus; Risk factors.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00474/58581/61146.pdf
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A long term study of bonamiosis in Quiberon bay, France ArchiMer
Arzul, Isabelle; Miossec, Laurence; Blanchet, Estelle; Garcia, Celine; Joly, Jean-pierre; Francois, Cyrille; Berthe, Franck.
Bonamiosis was first reported in association with mass mortality of flat oysters, Ostrea edulis, in June 1979 in L'Ile Tudy, Brittany. The disease rapidly spread to all of the oyster farming areas in France but also in other European countries. The French flat oyster production, which already suffered from another protozoan disease, marteiliosis, decreased from 5500 mt in 1979 to less than 2000 mt after 1980. In 2001, about 350 French farms sell 1650 mt of flat oysters. This production mainly relies on natural spat collection which specially occurs in Quiberon bay. One third of this spat is transferred from South to North Brittany for further growth. Quiberon bay constitutes an interesting site regarding the surveillance of bonamiosis because of the...
Tipo: Text Palavras-chave: Detection; Bonamia ostreae; Protozoan; Diseases; Pathology; Ostrea edulis; Oysters.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/acte-3314.pdf
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A study of autophagy in hemocytes of the Pacific oyster, Crassostrea gigas ArchiMer
Picot, Sandy; Morga, Benjamin; Faury, Nicole; Chollet, Bruno; Dégremont, Lionel; Travers, Marie-agnes; Renault, Tristan; Arzul, Isabelle.
Macroautophagy is a mechanism that is involved in various cellular processes, including cellular homeostasis and innate immunity. This pathway has been described in organisms ranging in complexity from yeasts to mammals, and recent results indicate that it occurs in the mantle of the Pacific oyster, Crassostrea gigas. However, the autophagy pathway has never been explored in the hemocytes of C. gigas, which are the main effectors of its immune system and thus play a key role in the defence of the Pacific oyster against pathogens. To investigate autophagy in oyster hemocytes, tools currently used to monitor this mechanism in mammals, including flow cytometry, fluorescent microscopy and transmission electron microscopy, were adapted and applied to the...
Tipo: Text Palavras-chave: Autophagosome; Autophagy; Crassostrea gigas; Flow cytometry; Fluorescence microscopy; Hemocytes; Transmission electron microscopy.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00487/59905/63087.pdf
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Asari clam (Ruditapes philippinarum) in France: history of an exotic species 1972 – 2015 ArchiMer
De Montaudouin, Xavier; Arzul, Isabelle; Caill-milly, Nathalie; Khayati, Alice; Labrousse, Jean-michel; Lafitte, Céline; Paillard, Christine; Soudant, Philippe; Goulletquer, Philippe.
In 1972, France underwent an oyster (Crassostrea angulata) crisis and urgently needed to diversify its aquaculture. Thus, Asari clam (Ruditapes philippinarum) was introduced at that time for aquaculture purpose, concomitantly with the introduction of Pacific oyster (Crassostrea gigas). All Asari clam adults and spat originated from the same area (Puget Sound, WA, USA). After a promising start and the implementation of a national Research & Development program, Asari clam culture rapidly faced a series of concomitant handicaps: firstly, in spite the fact that cultural practices were optimized and locking points addressed, leasing ground availability was limited during the 1980s’ due to certain reluctance from oyster farmers to share their leases and/or...
Tipo: Text Palavras-chave: Ruditapes philippinarum; France; Aquaculture; Professional fishing; Diseases; Environmental stressors.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00366/47767/47817.pdf
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Bilan 2003 du réseau REPAMO - Réseau national de surveillance zoosanitaire des mollusques marins ArchiMer
Arzul, Isabelle; Garcia, Celine; Joly, Jean-pierre; Miossec, Laurence; Chollet, Bruno; Robert, Maeva; Cuvelier, Nicolas; Lefebvre, Alain; Le Gagneur, Eric; Kopp, Joel; Mouillard, Gilbert; Gerla, Daniel; Le Saux, Jean-claude; Raguenes, Pierre; Le Gal, Dominique; Langlade, Aime; Bedier, Edouard; Nourry, Max; Martin, Jean-louis; Fillon, Alain.
The REPAMO network (network ofmollusc pathology), created in 1986, ensures the survey of shellfish health status along French coasts according? to European Directives 91/67/EEC and 95/70/EEC. The aims of the network are 1 - to prevent the introduction and spread of exotic pathogens, 2-to study the means to decrease the impact of pathogens already present and to survey their evolution. In 2003, the REPAMO network focused on the survey oflisted diseases (bonamiosis and marteiliosis) in two areas under agreement process (Banc de Granville and zone X) and on the study of abnormal morlalities. Number of reported abnormal morlalities has increased in 2003. This rise can be partly explained by the recent network restructuring, but also by the summer heatwave and...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé; Network; Surveillance; Pathology; Molluscs; Shellfish; Health status.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00086/19699/17340.pdf
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Bilan 2004 du réseau REPAMO - Réseau national de surveillance zoosanitaire des mollusques marins ArchiMer
Garcia, Celine; Arzul, Isabelle; Chollet, Bruno; Francois, Cyrille; Goubet, Anne; 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; Costantini, Louis; Masson, Jean-claude; Martin, Anne-genevieve.
Created in 1986, the REPAMO network (Network of mollusc pathology), is a national zoosanitary surveillance network of shellfish health status along the French coasts. Its activities are in keeping with two European Directives, 91 /67/EEC and 95/70/EC and are a patt of the institutional tasks ofIfremer. The aims of the network are to prevent the introduction and spread of exotic pathogens and to survey 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 (Banc de Granville and zone X). In 2004, no sample couId be analysed to these two areas because of the difficulty to obtain flat oysters (sparse oyster beds,...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé; Network; Surveillance; Pathology; Molluscs; Shellfish; Health status.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/00086/19702/17343.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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Bilan 2006 du réseau Repamo. Réseau national de surveillance zoosanitaire des mollusques marins ArchiMer
Francois, Cyrille; Garcia, Celine; Labrut, Sophie; Miossec, Laurence; Arzul, Isabelle; Joly, Jean-pierre; Chollet, Bruno; Robert, Maeva; Ferrand, Sylvie.
Created in 1992, the REPAMO network (Network of mollusc pathology), is a national zoosanitary surveillance network of shellfish health status along the French coasts. Its activities are in keeping with two European Directives, 91/67/EEC and 95/70/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 survey the evolution ofnotifiable 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 (zone X and Granville bed in zone IX). In 2006, only samples of the Granville bed could be analysed due to the difficulty to obtain flat oysters (sparse oyster...
Tipo: Text Palavras-chave: Health status; Shellfish; Molluscs; Pathology; Surveillance; Network; État de santé; Coquillages; Mollusques; Pathologie; Surveillance; Réseau.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-3812.pdf
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Bilan 2007 du réseau REPAMO - Réseau national de surveillace de la santé des mollusques marins ArchiMer
Francois, Cyrille; Garcia, Celine; Arzul, Isabelle; Chollet, Bruno; Ferrand, Sylvie; Joly, Jean-pierre; Miossec, Laurence; Robert, Maeva; Cuvelier, Nicolas; Le Gagneur, Eric; Ropert, Michel; Mouillard, Gilbert; Gerla, Daniel; Annezo, Jean-pierre; Le Gal, Dominique; 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; Bouchoucha, Marc; Baldi, Yoann; Ravel, Christophe.
Créé en 1992, le réseau REPAMO (REseau de PAthologie des MOllusques) est un réseau de surveillance de la santé des mollusques marins du littoral français. Son activité s'inscrit dans le cadre de deux Directives Européennes, les Directives 91 /67/CEE et 95/70/CE. Les objectifs du réseau sont de prévenir l'introduction et la propagation d'organismes pathogènes, en particulier ceux à déclaration obligatoire et de surveiller l'évolution de ceux déjà présents sur le territoire national. Ces activités font parties des missions institutionnelles de l'IFREMER. La surveillance assurée par le réseau vise en premier lieu les infections à déclaration obligatoire présentes en France, la bonamiose à Bonamia ostreae et la Marteiliose à Marteilia refringens chez l'huître...
Tipo: Text Palavras-chave: Réseau; Surveillance; Mollusques; Coquillages; Santé.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00086/19708/17349.pdf
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Bilan 2008 du réseau REPAMO - Réseau national de surveillance de la santé des mollusques marins ArchiMer
Francois, Cyrille; Garcia, Celine; Arzul, Isabelle; Joly, Jean-pierre; Miossec, Laurence; Chollet, Bruno; Ferrand, Sylvie; Robert, Maeva; Tourbiez, Delphine; Omnes, Emmanuelle; Cobret, Laetitia; Faury, Nicole; Haffner, Philippe; Saulnier, Denis; Pepin, Jean-francois; Renault, Tristan; Antajan, Elvire; Rauflet, Fabienne; Ropert, Michel; Mouillard, Gilbert; Gerla, Daniel; Annezo, Jean-pierre; Le Gal, Dominique; Langlade, Aime; Bedier, Edouard; Nourry, Max; Chabirand, Jean-michel; Fillon, Alain; Robert, Stephane; Courtois, Olivier.
Créé en 1992, le réseau REPAMO (REseau de PAthologie des MOllusques) est un réseau de surveillance de la santé des mollusques marins du littoral français. Son activité s'inscrit dans le cadre de la Directive Européenne 2006/88/CE. Les objectifs du réseau sont de prévenir l'introduction et la propagation d'organismes pathogènes, en particulier ceux à déclaration obligatoire et de surveiller l'évolution de ceux déjà présents sur le territoire national. Ces activités font parties des missions institutionnelles de l'IFREMER. La surveillance assurée par le réseau vise en premier lieu les infections à déclaration obligatoire présentes en France, la bonamiose à Bonamia ostreae chez l'huître plate Ostrea edulis et la marteiliose à Marteilia refringens chez...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00086/19709/17351.pdf
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Bilan 2009 du réseau REPAMO - Réseau national de surveillace de la santé des mollusques marins ArchiMer
Francois, Cyrille; Joly, Jean-pierre; Garcia, Celine; Miossec, Laurence; Saulnier, Denis; Pepin, Jean-francois; Arzul, Isabelle; Omnes, Emmanuelle; Tourbiez, Delphine; Faury, Nicole; Haffner, Philippe; Chollet, Bruno; Robert, Maeva; Cobret, Laetitia; Renault, Tristan; Rauflet, Fabienne; Le Gagneur, Eric; Ropert, Michel; Mouillard, Gilbert; Gerla, Daniel; Annezo, Jean-pierre; Le Gal, Dominique; Langlade, Aime; Bedier, Edouard; Breerette, Stephane; Chabirand, Jean-michel; Grizon, James; Robert, Stephane; Courtois, Olivier; Rumebe, Myriam.
Créé en 1992, le réseau REPAMO (REseau de PAthologie des MOllusques) est un réseau de surveillance de la santé des mollusques marins du littoral français. Son activité s'inscrit dans le cadre de la Directive Européenne 2006/88/CE. Les objectifs du réseau sont de prévenir l'introduction et la propagation d'organismes pathogènes, en particulier ceux à déclaration obligatoire et de surveiller l'évolution de ceux déjà présents sur le territoire national. Ces activités font parties des missions institutionnelles de l'IFREMER. La surveillance assurée par le réseau vise en premier lieu les infections à déclaration obligatoire présentes en France, la bonamiose à Banamia ostreae chez l'huître plate Ostrea edulis et la marteiliose à Marteilia refringens chez...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00086/19711/17352.pdf
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Bilan 2010 du réseau Repamo - Réseau national de surveillance de la santé des mollusques marins ArchiMer
Guichard, Benjamin; Francois, Cyrille; Joly, Jean-pierre; Garcia, Celine; Saulnier, Denis; Pepin, Jean-francois; Arzul, Isabelle; Omnes, Emmanuelle; Tourbiez, Delphine; Faury, Nicole; Haffner, Philippe; Chollet, Bruno; Robert, Maeva; Renault, Tristan; Rauflet, Fabienne; Le Gagneur, Eric; Ropert, Michel; Mouillard, Gilbert; Gerla, Daniel; Annezo, Jean-pierre; Le Gal, Dominique; Langlade, Aime; Bedier, Edouard; Brerette, Stéphane; Chabirand, Jean-michel; Grizon, James; Robert, Stephane; Courtois, Olivier; Rumebe, Myriam; Cantin, Christian.
Créé en 1992, le réseau REPAMO (REseau de PAthologie des MOllusques) est un réseau de surveillance de la santé des mollusques marins du littoral français. Son activité s’inscrit dans le cadre de la Directive Européenne 2006/88/CE. Les objectifs du réseau sont de prévenir l’introduction et la propagation d’organismes pathogènes, en particulier ceux à déclaration obligatoire et de surveiller l’évolution de ceux déjà présents sur le territoire national. Ces activités font parties des missions institutionnelles de l’IFREMER. La surveillance assurée par le réseau vise en premier lieu les infections à déclaration obligatoire présentes en France, la bonamiose à Bonamia ostreae chez l’huître plate Ostrea edulis et la marteiliose à Marteilia refringens chez...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Santé; Surveillance.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00059/17050/14599.pdf
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Bilan 2012 du réseau REPAMO - Réseau national de surveillance de la santé des mollusques marins ArchiMer
Francois, Cyrille; Joly, Jean-pierre; Garcia, Celine; Lupo, Coralie; Travers, Marie-agnes; Pepin, Jean-francois; Hatt, Philippe-jacques; Arzul, Isabelle; Omnes, Emmanuelle; Tourbiez, Delphine; Faury, Nicole; Haffner, Philippe; Huchet, Eve; Dubreuil, Christine; Chollet, Bruno; Renault, Tristan; Cordier, Remy; Hebert, Pascale; Le Gagneur, Eric; Parrad, Sophie; Gerla, Daniel; Annezo, Jean-pierre; Terre-terrillon, Aouregan; Le Gal, Dominique; Langlade, Aime; Bedier, Edouard; Hittier, Benoist; Grizon, James; Chabirand, Jean-michel; Robert, Stephane; Seugnet, Jean-luc; Rumebe, Myriam; Le Gall, Patrik; Bouchoucha, Marc; Baldi, Yoann; Masson, Jean-claude.
Créé en 1992, le réseau Repamo (REseau de PAthologie des MOllusques) est un réseau de surveillance de la santé des mollusques marins du littoral français. Son activité s’inscrit dans le cadre de la Directive Européenne 2006/88/CE. Les objectifs du réseau sont de prévenir l’introduction et la propagation d’organismes pathogènes, en particulier ceux à réglementés et de surveiller l’évolution de ceux déjà présents sur le territoire national. Ces activités font partie des missions institutionnelles de l’IFREMER. L’étude des hausses de mortalités (protocole II) a été poursuivie avec 52 interventions complètes ayant conduit au recueil de commémoratifs et à la réalisation d’échantillons de mollusques marins pour analyses en pathologie. Des hausses de mortalités...
Tipo: Text Palavras-chave: Réseau; Pathologie; Mollusques; Coquillages; Santé; Surveillance.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00143/25470/23625.pdf
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Bilan 2015 du dispositif national de surveillance de la santé des mollusques marins ArchiMer
Lupo, Coralie; Osta Amigo, Axel; Fleury, Elodie; Robert, Stephane; Garcia, Celine; Arzul, Isabelle; Baillon, Laury; Bechemin, Christian; Canier, Lydie; Chollet, Bruno; Dechamps, Lucie; Dubreuil, Christine; Faury, Nicole; Francois, Cyrille; Godfrin, Yoann; Lapegue, Sylvie; Morga, Benjamin; Travers, Marie-agnes; Tourbiez, Delphine; Masson, Jean-claude; Verin, Francoise; Cordier, Remy; Gangnery, Aline; Louis, Wilfried; Mary, Charlotte; Normand, Julien; Penot, Julia; Cheve, Julien; Dagault, Francoise; Le Jolivet, Aurore; Le Gal, Dominique; Lebrun, Luc; Bellec, Gwenael; Bouget, Jean-francois; Cochennec-laureau, Nathalie; Palvadeau, Hubert; Grizon, James; Chabirand, Jean-michel; Pepin, Jean-francois; Seugnet, Jean-luc; D'Amico, Florence; Maurer, Daniele; Le Gall, Patrik; Mortreux, Serge; Baldi, Yoann; Orsoni, Valerie; Bouchoucha, Marc; Le Roy, Valerian; Pouvreau, Stephane; Queau, Isabelle; Lamoureux, Alice.
Depuis 1992, la surveillance de la santé des mollusques marins du littoral français est assurée par le réseau de Pathologie des Mollusques (Repamo). Ses activités s’inscrivent dans le cadre de la Directive Européenne 2006/88/CE. Depuis son évaluation par la plateforme nationale d’épidémiosurveillance en santé animale en 2012, l’objectif de surveillance est la détection précoce des infections dues à des organismes pathogènes exotiques et émergents affectant les mollusques marins sauvages et d’élevage. L’année 2015 est la première année de transition pour laquelle un début d’évolution des modalités de surveillance de la santé des mollusques marins animées par l’Ifremer a été amorcé. Un dispositif hybride de surveillance a été mis en place, s’appuyant sur...
Tipo: Text Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Santé; Mortalité; Maladie.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00324/43486/42945.pdf
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Bonamia ostreae and Ostrea edulis : a stable host-parasite system in France? ArchiMer
Arzul, Isabelle; Miossec, Laurence; Blanchet, Estelle; Garcia, Celine; Francois, Cyrille; Joly, Jean-pierre.
Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting flat oysters Ostrea edulis. After its first description in June 1979 in L'Ile Tudy, Brittany, the parasite rapidly spread to all French oyster farming areas and in other European countries through transfers of live molluscs. Bonamiosis and marteiliosis, another protozoan disease appeared in the seventies, drastically reduced the French flat oyster production from 20 000 tonnes in 1970 to less than 2000 tonnes after 1981. In 2001, about 1650 t of flat oysters were marketed in France. The production is restricted to several areas specialised in reproduction, growth and/or marketing, and depends on transfers of animals. Most important production...
Tipo: Text Palavras-chave: Bonamia ostreae; Parasitology; Pathology; Ostrea edulis; Oyster.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-6381.pdf
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Bonamia ostreae-induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge ArchiMer
Lallias, Delphine; Arzul, Isabelle; Heurtebise, Serge; Ferrand, Sylvie; Chollet, Bruno; Robert, Maeva; Beaumon, Andy; Boudry, Pierre; Morga, Benjamin; Lapegue, Sylvie.
Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in its aquaculture production. Selective breeding programs for resistance to bonamiosis have been undertaken to counter this disease. In the present study, a 6-month cohabitation challenge experiment was performed in order to transmit the disease from wild oysters injected with the parasite to two tested families of oysters (20 and 8-month old at the beginning of the experiment, with different genetic backgrounds) originating from a selective breeding program developed by IFREMER in France. Mortalities were checked daily and ventricular heart smears were performed on dying or moribund oysters to detect the...
Tipo: Text Palavras-chave: Heart smear; Transmission; Cohabitation experiment; Bonamia ostreae; Ostrea edulis.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4783.pdf
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Bonamia parasites: a rapidly changing perspective on a genus of important mollusc pathogens ArchiMer
Engelsma, Marc; Culloty, Sarah C.; Lynch, Sharon A.; Arzul, Isabelle; Carnegie, Ryan B..
Organisms of the genus Bonamia are intracellular protistan parasites of oysters. To date, 4 species have been described (B. ostreae, B. exitiosa, B. perspora and B. roughleyi), al though the status of B. roughleyi is controversial. Introduction especially of B. ostreae and B. exitiosa to naïve host populations has been shown to cause mass mortalities in the past and has had a dramatic impact on oyster production. Both B. ostreae and B. exitiosa are pathogens notifiable to the World Organisation for Animal Health (OIE) and the European Union. Effective management of the disease caused by these pathogens is complicated by the extensive nature of the oyster production process and limited options for disease control of the cultured stocks in open water. This...
Tipo: Text Palavras-chave: Bonamia ostreae; Bonamia exitiosa; Oyster disease; Phylogenetics; Geographical spread; Diagnostics; Epizootiology; Host-parasite interaction; Bonamiosis.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00200/31169/29568.pdf
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Bonamia-ostreae induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge ArchiMer
Lallias, Delphine; Arzul, Isabelle; Heurtebise, Serge; Ferrand, Sylvie; Chollet, Bruno; Robert, Maeva; Beaumont, Andrew; Boudry, Pierre; Morga, Benjamin; Lapegue, Sylvie.
Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in the aquaculture production of this oyster species. Therefore a selective breeding program for resistance to bonamiosis has been undertaken since 1985 bu Ifremer, leading to the production of several selected oyster families. In the present study, a 6-month cohabitation challenge experiment was performed in order to transmit the disease from wild oysters (injected with the parasite) to two tested families of oysters originating from the selective breeding program. Mortalities were checked daily, and ventricular heart smears were performed on dying or moribund oysters to detect the level of infection to...
Tipo: Text Palavras-chave: Heart smear; Transmission; Cohabitation experiment; Bonamia ostreae; Ostrea edulis.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/acte-4535.pdf
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Can Bonamia ostreae infect larvae of flat oysters Ostrea edulis ? ArchiMer
Arzul, Isabelle; Robert, Maeva; Garcia, Celine; Chollet, Bruno; Langlade, Aime.
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00448/55999/57503.pdf
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