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| Nicolas, Laurence. |
| La métamorphose de la coquille St Jacques Pecten maximus et de l'huître creuse Crassostrea gigas s'accompagne de profondes modificatiüns anatomiques, morphologiques et physiologiques. Un changement radical de mode de vie en découle et de ce fait, l'ensemble de ces transformations constitue une étape critique. Une meilleure connaissance et une amélioration de cette phase représentent un élément clé pour le développement de techrüques fiables dans les écloseries de production. L'induction de la métamorphose par des facteurs "chimiques" (adrénaline, L-Dopa, NH4Cl, KCl, algue rouge Rhodymenia sp) reste insuffisante et aléatoire. Le seul résultat marquant est le fort taux de métamorphose enregistré chez C. gigas exposée à de faibles concentrations d'adrénaline... |
| Tipo: Text |
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| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00448/55953/57431.pdf |
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| Bonola, Marc; Girondot, Marc; Robin, Jean-patrice; Martin, Jordan; Siegwalt, Flora; Jeantet, Lorène; Lelong, Pierre; Grand, Clément; Chambault, Philippine; Etienne, Denis; Gresser, Julie; Hielard, Gaëlle; Alexandre, Arqué; Régis, Sidney; Nicolas, Laurence; Frouin, Cédric; Lefebvre, Fabien; Sutter, Emmanuel; Vedie, Fabien; Barnerias, Cyrille; Laurent, Thieulle; Bordes, Robinson; Guimera, Christelle; Aubert, Nathalie; Bouaziz, Myriam; Pinson, Adrien; Frédéric, Flora; Matthieu, Duru; Benhalilou, Abdelwahab; Céline, Murgale; Maillet, Thomas; Andreani, Lucas; Campistron, Guilhem; Sikora, Maxym; Rateau, Fabian; Francis, George; Joffrey, Eggenspieler; Woignier, Thierry; Allenou, Jean-pierre; Louis-jean, Laurent; Chanteur, Bénédicte; Béranger, Christelle; Crillon, Jessica; Brador, Aude; Habold, Caroline; Le Maho, Yvon; Chevallier, Damien. |
| The change of animal biometrics (body mass and body size) can reveal important information about their living environment as well as determine the survival potential and reproductive success of individuals and thus the persistence of populations. However, weighing individuals like marine turtles in the field presents important logistical difficulties. In this context, estimating body mass based on body size is a crucial issue. Furthermore, the determinants of the variability of the parameters for this relationship can provide information about the quality of the environment and the manner in which individuals exploit the available resources. This is of particular importance in young individuals which growth quality might be a determinant of adult fitness.... |
| Tipo: Text |
Palavras-chave: Green turtles; Juveniles; Body mass; Body condition; Biometry. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00593/70493/68640.pdf |
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| Cann Moisan, Christine; Nicolas, Laurence; Robert, Rene. |
| In the present study, norepinephrine (NE), epinephrine (E), dopamine (DA) and 5-hydroxy-tryptamine (5HT) have been quantified by high performance liquid chromatography (HPLC) in Pecten maximus during larval and post-larval development. With average values ranging from 2 to 5 pg mug(-1) of protein, NE remained low through the whole larval life, while epinephrine (E) was undetected. DA and 5HT were the most abundant monoamines with significant variations between larval, pre-metamorphic and post-larval stages. During the first 20 days, corresponding to D larval and umboned larval stages, levels of DA and 5HT increased from 15 to 30 and 10 to 15 pg mug(-1) of protein, respectively. Then during the last week of larval life, at the approach of metamorphosis, DA... |
| Tipo: Text |
Palavras-chave: Pecten maximus; Metamorphosis; Post larvae; Larvae; Monoamines. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-568.pdf |
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