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Observations réalisées sur la biologie et la pêche du "gros yeux" Etelis oculatus VAL. aux Petites Antilles de 1982 à 1992. ArchiMer
Guillou, A; Lagin, Alain-sabin; Murray, P..
En preVIsion d'un développement probable à plus ou moins brève échéance de l'exploitation des vivaneaux profonds "gros yeux" (Etelis oculatus), on s'est attaché à rassembler et à analyser dans cette étude le maximum des observations éparses et connaissances acquises sur la biologie et la pêche actuelle de ce Lutjanidé, le plus profond que l'on connaisse aux Antilles. Dans la première partie de ce document ont ainsi été abordés en particulier les aspects suivants de la biologie du gros yeux : caractères métriques (relation longueur totale/longueur à la fourche, relations taille/poids), habitat, comportement, taille moyenne de première maturité sexuelle, composition en tailles des captures. Dans la seconde partie de l'étude sont exposées d'une part les...
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Ano: 1996 URL: http://archimer.ifremer.fr/doc/00105/21589/19169.pdf
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Embarcations et engins de la pêche artisanale martiniquaise recensés en 1985 et évolution récente ArchiMer
Guillou, A; Gueredrat, J.a.; Lagin, Alain-sabin.
A systematic census of the fishing boats, of their motors and of the fishing gears has been conducted in Martinique in 1985, as par of a program entitleè "Antillean fisheries study" of the "Pôle de Recherche Océanologique et Halieutique Caraïbe". In addition, a comparison of our results with those of previous inquiries and scattered informations gives the opportunity for presenting the main qualitative and quantitative tendancies of the different components of the fishing fleet, of its motorization and of the fishing gears in Martinique during the last past decades. NOT CONTROLLED OCR
Tipo: Text
Ano: 1988 URL: http://archimer.ifremer.fr/doc/1988/rapport-3887.pdf
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Analyse des structures de la peche dans les ports de la cote atlantique francaise de 1961 a 1975 et des incidences du chalutage sur les stocks des principales especes concornees par cette activite dans les mers adjacentes. ArchiMer
Guillou, A; Njock, J.c.
The authors have studied the structure of the fishing fleet for artisanal and industrial fisheries and its activities in the harbours of the Atlantic coast: Douarnenez, Concarneau, Lorient, Saint-Nazaire, Nantes, La Rochelle, Bayonne etc. It appears that the decline of the traditional fishery corresponds to the degradation of the stocks, especially the hake and megrim stocks. The industrial fishery supports the consequences of this overfishing while the artisanal trawling fishery showed in 1975 a relative prosperity. In conclusion, it is evident that stock degradation is chiefly caused by fisheries utilizing too narrow meshes. This is not irreversible and it is probable that a sensible widening of the meshes would permit better management of the potential...
Tipo: Text Palavras-chave: ANE; France Fishery data Stock assessment Commercial fishing Artisanal fishing.
Ano: 1978 URL: http://archimer.ifremer.fr/doc/1978/publication-1952.pdf
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Characterization of a laser-nitrided titanium alloy by electron backscattered diffraction and electron probe microanalysis ArchiMer
Gordin, D; Gloriant, T; Bohn, Marcel; Guillou, A; Thibon, I; Ansel, D.
After a laser gas nitriding treatment of the Ti-7.5Al (atom %) titanium-based alloy, we used a combination of electron backscattered diffraction (EBSD) in scanning electron microscope and electron probe microanalysis (EPMA) techniques in order to efficiently characterize the different phases in the resolidified layer. Representative measurements of chemical composition and reliable determination of crystal structure were possible for each phase of the complex microstructure. The reaction zone is formed by a mixture of isostructural TiN phases with dendritic and/or 'coarse' needles morphology, fixed into a alpha'-Ti matrix (martensite) with a thin needle aspect. The nitrogen solubility was found to remain very low in the alpha'-Ti matrix (up to 2-3 atom %),...
Tipo: Text Palavras-chave: Electron probe microanalysis; Electron backscattered diffraction; Titanium nitride coating; Laser gas nitriding.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-3575.pdf
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