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Data/hora: 09/06/2024 13:50:14

Lipid composition of the giant lion's-paw scallop (Nodipecten subnodosus) in relation to gametogenesis - I. Fatty acids
Provedor de dados: 5
Autores: Palacios, Elena; Racotta, I; Kraffe, E; Marty, Y; Moal, Jeanne; Samain, Jean-francois.
Seasonal variations in fatty acid composition in several tissues of a 1-year-old population of giant lion's-paw scallop Nodipecten subnodosus were analyzed during gonad development. Samples were taken bimonthly from December 1999 to June 2000, a period in which gonad development was occurring. Fatty acid accumulation in neutral and polar lipids of the female gonad was concomitant to the gonad development and presented a maximum in June. Among essential fatty acids, a specific accumulation was observed only for 20:5n - 3 in the female gonad, as suggested by an increase in its proportion in the neutral and the polar fractions. However, no specific accumulation was observed for 22:6n - 3, as its proportion remained relatively constant in both fractions. We...
Tipo: Text
Palavras-chave: Reproduction; Pectinidae; HUFA; EPA; DHA; Arachidonic acid.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-767.pdf

Effect of reproduction on escape responses, metabolic rates and muscle mitochondrial properties in the scallop Placopecten magellanicus
Provedor de dados: 5
Autores: Kraffe, E; Tremblay, R; Belvin, S; Le Coz, Jean-rene; Marty, Y; Guderley, H.
In scallops, gametogenesis and spawning can diminish the metabolic capacities of the adductor muscle and reduce escape response performance. To evaluate potential mechanisms underlying this compromise between reproductive investment and escape response, we examined the impact of reproductive stage (pre-spawned, spawned and reproductive quiescent) of the giant scallop, Placopecten magellanicus, on behavioural (i.e., escape responses), physiological (i.e., standard metabolic rates and metabolic rates after complete fatigue) and mitochondrial capacities (i.e., oxidative rates) and composition. Escape responses changed markedly with reproductive investment, with spawned scallops making fewer claps and having shorter responses than pre-spawned or...
Tipo: Text
Palavras-chave: Placopecten magellanicus; Sterols; Fatty acids; Plasmalogens; Phospholipids; Cytochrome C oxidase; Metabolic rate; Escape response; Muscle; Scallops; Reproduction; Mitochondria.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4786.pdf