Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

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	Provedor de dados OAK (1) Autor Inoue, Tsuyoshi (1) Tanaka, Masashiro (1) Taniguchi, Misato (1) Yanagawa, Hisashi (1) 井上, 剛 (1) 柳川, 久 (1) 田中, 雅宏 (1) 谷口, 明里 (1) Mais... Ano 1991 (1) País Japan (1) Idioma Japonês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 43 Primeira ... 1 2 3 ... Última Growth of the black-lip pearl oyster, Pinctada margaritifera, at nine culture sites of French Polynesia: synthesis of several sampling designs conducted between 1994 and 1999 ArchiMer Pouvreau, Stephane; Prasil, Vincent. Between 1994 and 1999, several sampling designs were used to measure the growth of the black-lip pearl oyster, Pinctada margaritifera var. cumingi at different sites in French Polynesia. Using a common statistical method, growth data were analysed for nine sites and showed significant geographic variability. Parameters of the Von Bertalanffy model, fitted on the nine data sets, ranged from 147 to 186.5 mm for the H-infinity parameter and from 0.42 to 0.58 year(-1) for the k parameter. The phi parameter (combination of H-infinity and k) provided a ranking classification of growth in these nine sites: growth was low in closed atoll lagoons, such as Takapoto, whereas the island lagoons and ocean habitat supported a very promising shell growth. Calculated on... Tipo: Text Palavras-chave: Von Bertalanffy model; Tropical lagoon; Pinctada margaritifera; Pearl oyster; Growth; Modèle de Von Bertalanffy; Lagon tropical; Pinctada margaritifera; Huître perlière; Croissance. Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-549.pdf Physiological responses of female and male black-lip pearl oysters (Pinctada margaritifera) to different temperatures and concentrations of food ArchiMer Chavez-villalba, Jorge; Soyez, Claude; Aurentz, Hermann; Le Moullac, Gilles. This study was designed to measure responses of four-year-old black-lip pearl oysters (Pinctada margaritifera) to different temperatures and food concentrations and to identify the energy requirements of each sex. Oysters were fed a monospecific microalgal diet of Isochrysis affinis galbana (T-iso). Measurements of oxygen consumption and ingestion rates were carried out at 24 degrees C and 27 degrees C and at two algal (T-iso) concentrations: 5000 and 30 000 cell ml(-1). Glycogen content in adductor muscle, absorption efficiency and scope for growth were also estimated. Females and males responded differently to environmental factors, with food level being the most influential parameter. Oxygen consumption and absorption efficiency were significantly... Tipo: Text Palavras-chave: Food supply; Ingestion rate; Glycogen; Oxygen consumption; Scope for growth; Pearl oyster. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00157/26855/24980.pdf Socio-Economics of Pearl Culture: Industry Changes and Comparisons focusing on Australia and French Polynesia AgEcon Tisdell, Clement A.; Poirine, Bernard. Concentrates on comparing socio-economic aspects of pearl culture in Australia, which mostly relies on the culture of the South Sea pearl oyster P. maxima, with that in French Polynesia which depends on the culture of the black-lipped pearl oyster P. margaritifera. Australian culture of pearl oysters dates from the 1950s whereas culture of black pearls in French Polynesia dates from the second half of the 1970s. After briefly outlining the history of pearl culture in Australia and Tahiti, this paper provides an overview of the industry, comparative structure of the industry in Australia and French Polynesia and its technologies. Socio-economic impacts, especially regional impacts, of the industry are considered. Market characteristics (such as prices... Tipo: Working or Discussion Paper Palavras-chave: Pearl oyster; Pearls; Australian Pearl Industry; French Polynesia; Crop Production/Industries; International Relations/Trade; Production Economics. Ano: 1998 URL: http://purl.umn.edu/47952 Registros recuperados: 43 Primeira ... 1 2 3 ... Última

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