Consulta: subjectFacets:"Perkinsus olseni"
Registros recuperados: 8
Data/hora: 10/06/2024 18:28:15

Correlation between perkinsosis and growth in clams Ruditapes spp.
Provedor de dados: 5
Autores: Dang, Cecile; De Montaudouin, Xavier; Binias, Cindy; Salvo, Flora; Caill-milly, Nathalie; Bald, Juan; Soudant, Philippe.
Perkinsosis is one of the most widespread diseases affecting commercially important species of molluscs globally. We examined the impact of Perkinsus spp. on shell growth at the individual scale in 2 clam species: Ruditapes decussatus from Mundaka Estuary (Spain) and R. philippinarum from Arcachon Bay (France). At Arcachon, 2 contrasting sites in terms of environment and Perkinsus olseni presence were chosen: Arguin (disease-free) and Ile aux Oiseaux (infected site). We monitored the dynamics of perkinsosis over the course of the experiment at Mundaka and Ile aux Oiseaux. Prevalences were high (&gt;70%), and intensities were around 10(5) cells g(-1) wet gills at Ile aux Oiseaux, and 10(6) cells g(-1) at Mundaka. No significant differences in prevalence or...
Tipo: Text
Palavras-chave: Clams; Perkinsus spp.; Perkinsus olseni; Ruditapes philippinarum; Ruditapes decussatus; Growth.
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00166/27733/25951.pdf

One Perkinsus species may hide another: characterization of Perkinsus species present in clam production areas of France
Provedor de dados: 5
Autores: Arzul, Isabelle; Chollet, Bruno; Michel, Justine; Robert, Maeva; Garcia, Celine; Joly, Jean-pierre; Francois, Cyrille; Miossec, Laurence.
Although clam populations in France are known to be infected with protozoans of the genus Perkinsus, no molecular characterization was previously performed on these parasites. Considering that several members of this genus have been associated with mortalities of molluscs worldwide, a study was undertaken in order to characterize these parasites in France. For that purpose, clams, Ruditapes philippinarum and R. decussatus, collected from different production areas and found to be infected with Perkinsus sp. in thioglycolate culture medium, were selected for PCR-RFLP tests and sequencing. Perkinsus olseni was detected in all the investigated areas and results also suggested the presence of P. chesapeaki in Leucate, a lagoon on the Mediterranean coast and in...
Tipo: Text
Palavras-chave: Clam parasites; Perkinsus chesapeaki; Perkinsus olseni; Ruditapes philippinarum; Ruditapes decussatus; Ribosomal RNA; Actin; ISH.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00094/20542/18205.pdf

Recommendations for evaluation of the health status in cultured and wild shellfish: Perkinsus olseni infestation in clams as an example
Provedor de dados: 5
Autores: Miossec, Laurence; Arzul, Isabelle; Garcia, Celine; Soudant, Philippe; Francois, Cyrille; Leite, R. B.; Cancela, M. L.; De Blas, I.
Infectious diseases in exploited shellfish population cause economical problems world-wide. The characteristics of the disease in the population -i.e. origin, frequency, distribution, development- need to be well known to set up appropriate measures for protection and restoration of shellfish population health. The investigation of disease in a population is the basis of epidemiology. Quantitative investigations include studies, survey, surveillance with specific sampling strategies according to the objectives. European clams (Ruditapes decussatus) and Manila clams (Ruditapes philippinarum), two commercially valuable species, are infected by the protozoan Perkinsus olseni. This pathogen has been associated with epizootic outbreaks involving in heavy...
Tipo: Text
Palavras-chave: Recommendations; Epidemiology; Aquatic animal diseases; Pathology; Perkinsus olseni.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3326.pdf

Molecular characterization of parasites of the genus Perkinsus present in clams from French producing areas
Provedor de dados: 5
Autores: Arzul, Isabelle; Michel, Justine; Chollet, Bruno; Robert, Maeva; Miossec, Laurence; Garcia, Celine; Francois, Cyrille.
Production of clams is the third most important bivalve production in France and was estimated at 3400 metric tons in 2001 among which 60% came from aquaculture and 40% from fisheries. Surveillance of clam diseases mainly relies on histology and thioglycolate culture, two techniques allowing detection of parasites of the genus Perkinsus but not specific enough to determine the parasite species. Based on a previous study aiming at estimating distribution and prevalence of perkinsosis in France, we selected 34 infected clams from 4 different producing areas in order to characterize the parasite species. Molecular characterization was done by PCR-RFLP targeting the ITS region as described by Abollo et al. (2006). 16 PCR products were cloned and 10 to 20...
Tipo: Text
Palavras-chave: French producing areas; Clams; Perkinsus olseni; Parasite.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6269.pdf

Report about mollusc diseaes
Provedor de dados: 5
Autores: Berthe, Franck.
Of the 75 laboratories contacted through the survey, 54 answered, 14 of which are partially or totally devoted to mollusc diseases. In fact, only 4 laboratories are devoted full-time to this work. Of the 14 laboratories that declared to work on the diagnosis of mollusc diseases, 12 stated that they worked with mussels, 12 with oysters, 9 with clams and 8 with other mollusc species. This is coherent with available production information. According to production data in 2001 (FAO source), the main mollusc species in the region are the blue mussel, Mytilus edulis (297,485 tonnes), the Mediterranean mussel, Mytilus galloprovincialis (131,014 tonnes), the Pacific cupped oyster, Crassostrea gigas (127,323 tonnes, an important part of which is produced on the...
Tipo: Text
Palavras-chave: Bonamia existiosus; Bonamis ostreae; Bonamiosis; Marteilia sydneyi; Marteilia maurini; Marteilia refringens; Marteiliosis; Perkinsus marinus; Perkinsus olseni; Perkinsus atlanticus; Perkinsosis; Vibriosis; Herpes like virus; Oysters; Pathology; Mollusc diseases.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-3300.pdf

Etude et optimisation des cultures cellulaires de Perkinsus olseni parasite de la palourde
Provedor de dados: 5
Autores: Guenn, Julien.
La conchyliculture connaît depuis une trentaine d'années une progression régulière de ses productions à travers le monde. Elle représente une activité économique importante avec plus de 240 000 tonnes de coquillage produit annuellement en France. Cependant le développement de cette activité peut être limité par des mortalités parfois massives dues à des maladies infectieuses. L'augmentation des productions peut être expliquée par l'amélioration des méthodes d'élevage grâce à une meilleure connaissance de la biologie des bivalves et des processus physiologiques liés à leur reproduction : l'apparition de l'élevage larvaire en écloserie a permis de pallier le caractère aléatoire et souvent insuffisant du captage naturel. Ces nouvelles techniques ont permis...
Tipo: Text
Palavras-chave: Biologie cellulaire; Parasite; Perkinsus olseni; Culture cellulaire; Palourde; Ruditapes decussatus; Ruditapes philippinarum.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00033/14457/11759.pdf

Some regulatory issues related to perkinsosis
Provedor de dados: 5
Autores: Berthe, Franck.
Perkinsosis is one of the OIE listed diseases of molluscs caused by Perkinsus marinus and P. olseni. Consequently, molluscs originating from endemic areas should not be transferred into areas free of the disease. Impediments to the implementation of international zoosanitary regulation will be reviewed.
Tipo: Text
Palavras-chave: Pathology; Molluscs; Perkinsus olseni; Perkinsus marinus.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3284.pdf

Infection of clams by Perkinsus olseni as an example of the new French Surveillance Programme
Provedor de dados: 5
Autores: Miossec, Laurence; Garcia, Celine; Arzul, Isabelle; Francois, Cyrille; Joly, Jean-pierre; Chollet, Bruno; Robert, Maeva; De Blas, Isabelle.
The French network for the surveillance and monitoring of mollusc health (REPAMO) was officially set up in 1992 to control the shellfish status along the French coasts according to the European directives 91/67/EEC and 95/70/EC. The objectives are 1) the surveillance of notifiable diseases present in France (Bonamiosis and Marteiliosis of flat oysters Ostrea edulis), 2) the surveillance of health status of cultured and wild populations of molluscs, 3) the study of abnormal mortality and 4) the control of exchanges from European and third countries. In this context, a new surveillance programme, called Active Targeted Survey, part of the REPAMO, was applied in 2004 in order to improve the monitoring of the health status of the French mollusc populations...
Tipo: Text
Palavras-chave: Surveillance; Bivalvia; Clams; Perkinsus olseni; Pathogen; Pathology.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-6376.pdf