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	Provedor de dados ArchiMer (3) Autor Dufy, Christian (3) Diter, Alain (2) Palavra-chave Bivalve (2) Cytochalasine B (2) Bivalves (1) Croissance larvaire (1) Cytochalasin B (1) Cytochalasin B. (1) Larval growth (1) Larval survival (1) Ruditapes philippinarum (1) Sruvie larvaire (1) Tetraploidy (1) Triploidy (1) Triploïdie (1) Tétraploïdie (1) Mais... Tipo do documento Text (3) Ano 1990 (2) 1987 (1) País France (3) Idioma Inglês (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Analyse du circuit d'alimentation en eau de mer de l'écloserie du L.P.G.I.M. Ronce les Bains ArchiMer Dufy, Christian. Cette étude préliminaire a été réalisée au cours de 7 semaines et se base sur 21 relevés successifs (du 15 Juillet au 11 Août 1987) . Elle visait essentiellement à mettre en place une méthodologie d'analyse la plus directe possible et propre à visualiser ultérieurement, par rapport aux données premières, une évolution des différents paramètres étudiés . Ceci, tant en fonction du vieillissement des circuits que des fluctuations des paramètres estuariens ou bien encore selon les modifications susceptibles d'être apportées aux installations. Par conséquent, ce rapport est construit de manière à permettre la réalisat ion de nouvelles expériences dans des conditons similaires. Dans un but évolutif,  il sera donc possibl e de reprendre les données et d' y avoir... Tipo: Text Ano: 1987 URL: http://archimer.ifremer.fr/doc/00426/53733/54608.pdf Polyploidy in the Manila clam Ruditapes philippinarum - 1 - Chemical induction and larval performances of triploids ArchiMer Dufy, Christian; Diter, Alain. An effective treatment using catochalasin B (1 mg CB/ml dimethylsulfoxyde in 1 litre of sea water) was developed to induce triploidy in the Manila clam Ruditapes philippinurum (Adams and Reeve). The percentage of induced triploidy was assessed by karyological examination of embryos and spat. The treatment was found to be optimal between 20 to 35 minutes post-insemination exposure to CB, at 25'C, and produced 75.8 ± 5.7% triploid embryos on the average over four experiments. Growth and survival of larvae to metamorphosis were recorded for two different rearings each split into two replicates. Both larval rearings showed similar survival up to settlement: 19.3 and 27.0%, on average over two replicates, in the treated batches relative to the controls. Mean... Tipo: Text Palavras-chave: Larval survival; Larval growth; Bivalves; Cytochalasin B; Triploidy; Sruvie larvaire; Croissance larvaire; Bivalve; Cytochalasine B; Triploïdie. Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/publication-2752.pdf Polyploidy in the Manila clam Ruditapes philippinarum. II. Chemical induction of tetraploid embryos ArchiMer Diter, Alain; Dufy, Christian. Tetraploidy was induced in embryos of Ruditapes philippinarum by treating the eggs with cytochalasin B. (CB). Two treatment times were found to be effective in inducing tetraplidy : 0 to 10 minutes after insemination (before formation of the first polar body) and 45 minutes after insemination (just before the first cleavage). Treatments, started 5 and 45 minutes after insemination, produced 64.4 ± 7.8% and 28.3 ± 2.3% tetraploid embrios, respectively, after 6 hours (on the average over 3 experiments). However, no tetraploids were detected in 4-month-old spat. Sperm entry delayed by the CB could be involved in induction of tetraploidy by early treatment. Tipo: Text Palavras-chave: Ruditapes philippinarum; Bivalve; Tetraploidy; Cytochalasin B.; Ruditapes philippinarum; Bivalve; Tétraploïdie; Cytochalasine B. Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/publication-2753.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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