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	Provedor de dados ArchiMer (2) Autor De Pontual, Helene (1) Mille, Tiphaine (1) Prouzet, Patrick (1) Reddin, David (1) Palavra-chave Analyse de forme (2) Shape analysis (2) Alimentation (1) Analyse de Fourier (1) Diet composition (1) Discrimination (1) Fourier analysis (1) Geometric morphometrics (1) Inner ear (1) Meristics (1) Morphométrie géométrique (1) Oreille interne (1) Osteichthyes (1) Ostéichtyens (1) Otolithes (1) Otoliths (1) Salmo salar (1) Scalimétrie (1) Symmetry (1) Symétrie (1) Mais... Tipo do documento Text (2) Ano 2015 (1) 1992 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última A comparison of two techniques to discriminate continental origin of Atlantic salmon (Salmo salar L.) off West Greenland ArchiMer Reddin, David; De Pontual, Helene; Prouzet, Patrick. Two techniques of stock discrimination both utilizing scales, i. e. termed as classical technique and shape analysis, are compared for discriminating between North American and European Atlantic salmon (Salmo salar L.) caught off West Greenland. Three scales from each of 60 salmon were analyzed: 30 from North American and 30 from European-origin salmon collected from home rivers in 1982. The best results indicated misclassification and error rates of 0% for shape analysis and 5.0% and ± 1.7%, respectively, for the classical technique. A nested ANOVA indicated that variation was greater between scales of salmon of North American and European origin than from several scales from the same salmon. It was concluded that shape analysis with computer-aided... Tipo: Text Palavras-chave: Salmo salar; Scalimétrie; Analyse de forme; Discrimination; Salmo salar; Meristics; Shape analysis; Discrimination. Ano: 1992 URL: http://archimer.ifremer.fr/doc/00189/30073/28561.pdf Sources de variation intra-populationelle de la morphologie des otolithes: asymétrie directionnelle et régime alimentaire ArchiMer Mille, Tiphaine. Otoliths are calcified structures located in Osteichthyes’ inner ear that are involved in audition and balance. Their morphology is used as an indicator of various ecological processes or properties. This application requires identifying the endogenous and exogenous factors that act simultaneously as sources of shape variation. This thesis aims at detecting and quantifying the relative contributions of directional asymmetry and diet to otolith shape variation at the intra-population level. Directional asymmetry between left and right otoliths was found in flat-fishes, the blind-side otolith being always longer and larger, whereas it was negligible in round-fishes. However, asymmetry amplitude never exceeded 18 %, which suggests evolutionary canalization of... Tipo: Text Palavras-chave: Otolithes; Oreille interne; Ostéichtyens; Symétrie; Alimentation; Analyse de forme; Analyse de Fourier; Morphométrie géométrique; Otoliths; Inner ear; Osteichthyes; Symmetry; Diet composition; Shape analysis; Fourier analysis; Geometric morphometrics. Ano: 2015 URL: http://archimer.ifremer.fr/doc/00344/45536/45108.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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