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	Provedor de dados ArchiMer (2) Autor Chardy, Pierre (1) Gros, Philippe (1) Guillaumont, Brigitte (1) Hamon, Dominique (1) Santarelli, Leonardo (1) Palavra-chave Croissance (2) Growth (2) Inférence statistique (2) Statistical inference (2) Analyse isotopique (1) Annual increments (1) Buccin (1) Isotopie analysis (1) Mortality (1) Mortalité (1) Productivity (1) Productivité (1) Structures annuelles (1) Whelk (1) Mais... Tipo do documento Text (2) Ano 1985 (1) 1984 (1) País France (2) Idioma Francês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Étude dynamique de la population de Nucula nucleus (bivalve, protobranche) du cap de Flamanville (Manche) ArchiMer Chardy, Pierre; Guillaumont, Brigitte; Hamon, Dominique. Annual production and turnover rate of biomass are estimated on a population of the bivalve, Nucula nucleus, dominant on the sublittoral area of Cap de Flamanville (Manche). Investigations on reproductive cycle established on the gonads maturity index over one year indicate a single spawning period in autumn. Age is determined from a study of the ring pattern on the shells, in which annual signification is outlined. The Von Bertalanffy curve and the exponential function give an adequate description of growth and mortality. The studied population is considered as near a theoretical population with constant recruitment and mortality; this simplification is discussed through the comparison of the demographie structures obtained in the same station in 1978 and... Tipo: Text Palavras-chave: Croissance; Mortalité; Productivité; Inférence statistique; Growth; Mortality; Productivity; Statistical inference. Ano: 1984 URL: http://archimer.ifremer.fr/doc/00113/22411/20108.pdf Détermination de l'âge et de la croissance de Buccinum undatum L. (Gasteropoda : Prosobranchia) à l'aide des isotopes stables de la coquille et de l'ornementation operculaire ArchiMer Santarelli, Leonardo; Gros, Philippe. This paper presents a simple method of individual age determination of the gastropod Buccinum undatum, based on the counting of operculum striae. The validation of this method is achieved by the use of several unrelated approaches. As a first step, oxygen stable isotopie analysis is used to check shell records of seasonal temperature fluctuations. We then establish a geometrie correspondence between simultaneously elaborated parts of the shell and the operculum, and show that the mean periodicity of operculum striae formation is annual. With the help of complementary data collected on the fishing grounds, and also of a biometrical study, it is further shown that the age criterion is marked during the warmer months of the year, between June and October.... Tipo: Text Palavras-chave: Analyse isotopique; Buccin; Structures annuelles; Croissance; Inférence statistique; Isotopie analysis; Whelk; Annual increments; Growth; Statistical inference. Ano: 1985 URL: http://archimer.ifremer.fr/doc/00112/22308/19982.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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