Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Correlation between perkinsosis and growth in clams Ruditapes spp. ArchiMer
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 (>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
Imagem não selecionada

Imprime registro no formato completo
Description of a new pathology affecting the adductor muscle of manila clam (Ruditapes philippinarum) in Arcachon bay (SW France) ArchiMer
Dang, Cecile; De Montaudouin, Xavier; Gonzalez, Patrice; Mesmer-dudons, Nathalie; Caill-milly, Nathalie.
Tipo: Text
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6439.pdf
Imagem não selecionada

Imprime registro no formato completo
Dynamique des populations de palourdes japonaises (Ruditapes philippinarum) dans le bassin d'Arcachon : conséquences sur la gestion des populations exploitées ArchiMer
Dang, Cecile.
The Manila clam Ruditapes philippinarum was introduced into Arcachon Bay at the beginning of the 1980s for aquaculture purposes. It rapidly naturalized in all intertidal flats of the lagoon. Nowadays, Arcachon Bay ranks at the first French place in terms of exploitable stock. However, recent stock assessments have shown an unbalance size structure with a deficit in juvenile and adult clams (> 38 mm shell length). These alarming patterns asked many questions on the sustainability of Manila clam populations within Arcachon Bay and have motivated the present thesis. This study aimed to better understand the population dynamics of this species and also some factors controlling this dynamic. The final objective was to improve the Manila clam fishing...
Tipo: Text Palavras-chave: Management; Trophic sources; Pathogens; Population dynamics; Ruditapes philippinarum; Gestion; Resources trophiques; Pathogènes; Dynamique de population; Ruditapes philippinarum.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/these-7382.pdf
Imagem não selecionada

Imprime registro no formato completo
Spatio-temporal patterns of perkinsosis in the Manila clam Ruditapes philippinarum from Arcachon Bay (SW France) ArchiMer
Dang, Cecile; De Montaudouin, Xavier; Caill-milly, Nathalie; Trumbic, Zeljka.
Pathogens belonging to the genus Perkinsus infect many bivalve molluscan species around the world, including the Manila clam Ruditapes phihppinarum. We investigated the spatial distribution of this parasite at 34 stations throughout Arcachon Bay (SW France). Prevalence of perkinsosis was 93% and mean infection abundance was 96 x 10(3) cells g(-1) wet gill. Lowest mean abundances were found close to the Leyre River mouth and a significant negative correlation was observed between mean abundance and salinity. Perkinsosis was rare at the oceanic site where salinities and other environmental parameters were stable. A second aim of this study was to survey perkinsosis during annual cycles at 4 sites within Arcachon Bay. Prevalence and intensities (+/-SE) of the...
Tipo: Text Palavras-chave: Ruditapes philippinarum; Perkinsus sp.; Arcachon Bay; Clam; Spatio-temporal variations; Disinfection; Infection.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00017/12812/9755.pdf
Imagem não selecionada

Imprime registro no formato completo
Stable isotopes changes in the adductor muscle of diseased bivalve Ruditapes philippinarum ArchiMer
Dang, Cecile; De Montaudouin, X.; Savoye, N.; Caill-milly, Nathalie; Martinez, P.; Sauriau, Pierre-guy.
In this article, we show how a disease could bias stable isotope analyzes of trophic networks and propose a strategy in the choice of tissues to be analyzed. In the past few years, a new pathology (brown muscle disease or BMD) affecting the posterior adductor muscle of Ruditapes philippinarum has emerged in Arcachon Bay. BMD induces a necrosis of muscle tissues which become infused by conchiolin and hence calcified. As muscle of mollusks are often used for trophic food webs studies through stable isotopic analyzes, this work investigated the effect of BMD on carbon and nitrogen isotopic ratios of anterior and posterior adductor muscles of clams collected in February and August 2007. Infected clams displayed a lower condition index and a posterior adductor...
Tipo: Text Palavras-chave: Calcification; Disease; Adductor muscle; Stable isotopes; Ruditapes philippinarum; Clam.
Ano: 2009 URL: https://archimer.ifremer.fr/doc/2009/publication-6270.pdf
Imagem não selecionada

Imprime registro no formato completo
The Manila clam population in Arcachon Bay (SW France): Can it be kept sustainable? ArchiMer
Dang, Cecile; De Montaudouin, Xavier; Gam, Meriame; Paroissin, Christian; Bru, Noelle; Caill-milly, Nathalie.
The venerid clam Ruditapes philippinarum is the most prominent suspension-feeding bivalve inhabiting muddy intertidal seagrass beds in Arcachon Bay (SW France). It is exploited by fishermen, and Arcachon Bay ranks number one in France in terms of production and total biomass of this species. Previous studies revealed a decrease in the standing stock of R. philippinarum since 2003 and unbalanced length-frequency distributions with a lack of juveniles and of adults >40 mm. Consequently, the population dynamics of this bivalve were studied at four intertidal sites and one oceanic site in Arcachon Bay. As clam size structure did not allow classical dynamics computations. field monitoring was coupled with field experiments (tagging-recapture) over two years....
Tipo: Text Palavras-chave: Manila Clam; Ruditapes philippinarum; Growth; Mortality; Reproduction; Population Dynamic; Production; Productivity.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00002/11292/7990.pdf
Registros recuperados: 6
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional