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Registros recuperados: 6
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Distribución del mercurio total en los tejidos de un delfín nariz de botella (Tursiops gephyreus Lahille, 1908) de la provincia de Buenos Aires (Argentina) OceanDocs
Malaspina, A.M.; Pérez, A.; Moreno, V.J.; Bastida, R.O.; Aizpun, J.E..
Samples of seventeen different tissues of one specimen of the bottlenose dolphin Tursiops gephyreus, caught accidentally in waters adjacent to Mar del Plata by local fishermen (38°00'S; 57°20'W), were analyzed for total mercury distribution. The analytical procedure employed for total mercury involved a wet acid digestion followed by flameless atomic absorption. The method was based essentially on the one proposed by Armstrong and Uthe (1971).
Tipo: Journal Contribution Palavras-chave: Heavy metals; Mercury; Methodology; Aquatic mammals; Heavy metals; Mercury; Methodology; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_4751; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1984 URL: http://hdl.handle.net/1834/2050
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Lineamientos metodológicos para la gestión integrada de la zona marina costera (GIZMC) en Cuba. OceanDocs
Martínez-Iglesias, J. C.; Areces, A. J.; Quintana, M.; Viña, L.; Zúñiga, A.; Beyris, A..
Se formulan lineamientos metodológicos de la gestión integrada en la zona marino-costera, de acuerdo a los fundamentos teóricos y a los principios operativos aceptados por la comunidad internacional para desarrollar procedimientos de administración ambiental en dicha zona. Al efecto de facilitar la clarificación y el consenso en la selección de las metas de gestión, la propuesta metodológica establece una ruta crítica que contempla de manera explícita los siguientes aspectos: delimitación del área marino-costera y su zona de interacción, identificación de los factores críticos que inciden en el proceso de gestión, jerarquización de problemas e impactos a partir de la percepción de su importancia como tensores ambientales y de su factibilidad de manejo e...
Tipo: Journal Contribution Palavras-chave: Methodology; Methodology; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 2007 URL: http://hdl.handle.net/1834/3351
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Relation entre la densite des microstries et le rayon de l'otolithe compatible avec le modele de von Bertanlanffy: application a Lutjanus sebae (Cuvier, 1828) aux Seychelles OceanDocs
Chauvelon, P.; Bach, P..
The age study of fishes using daily growth increments DGI observations is made from: 1- either the exhaustive determination of increments, 2- or the calculation of daily growth increments density for different otolith zones between the nucleus and the margin edge of otolith, the width of increments being presumed constant for each zone. To apply the first method, increments may be readable individually from the nucleus to the margin edge of otolith. This is a very time consuming operation. It can cause miscalculation of increments and errors of the age estimation. The second method, called "DGI density method" is based on the decrease of the increment width in relation to the slowing down of the growth phenomena. The more used approach according to this...
Tipo: Report Palavras-chave: LUTJANUS SEBAE; Age determination; Growth; Methodology; Otolith reading; Age determination; Growth; Methodology; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1994 URL: http://hdl.handle.net/1834/1315
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Variations de la composition biochimique et de la qualité des lipides des Athérines <Atherina> sp. au cours du séchage solaire OceanDocs
Bouriga, N.; Selmi, S.; Faure, E.; Trabelsi, M..
Dans le présent travail, l’effet du séchage solaire sur la composition biochimique et la qualité des lipides des athérines a été étudié. La teneur en lipides, protéines et en cendres dans l’athérine a augmenté significativement (p <0.05) après le séchage. Cependant, celle de l’humidité a montré une forte diminution pour atteindre 22.37% dans le produit final. D’autre part, l’étude des indicateurs d’altération des lipides (Oxydation et Hydrolyse) nous a montré que la qualité des lipides des athérines est affectée par ce type de traitement. En effet, les taux des hydropéroxydes et des acides gras libres ont augmenté significativement (p < 0.05) après le séchage pour atteindre respectivement 2.02 meq active O2/kg huile et 3.67%. La formation des...
Tipo: Journal Contribution Palavras-chave: Biochemical composition; Dried products; Drying; Hydrolysis; Methodology; Processing fishery products; Quality assurance; Hydrolysis; Dried products; Drying; Methodology; Quality assurance; Http://aims.fao.org/aos/agrovoc/c_24940; Http://aims.fao.org/aos/agrovoc/c_15740; Http://aims.fao.org/aos/agrovoc/c_2402; Http://aims.fao.org/aos/agrovoc/c_12522; Http://aims.fao.org/aos/agrovoc/c_35287.
Ano: 2008 URL: http://hdl.handle.net/1834/3783
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Modificación del método rápido enzimático colorimétrico para detectar la presencia de histamina en productos pesqueros OceanDocs
Barrat, A.; Camba, N..
Samples of Dolphinfish (Coryphaena hippurus) were analysed for histamine content using the method of Lerke A. Peter, Porcuna N. Martina and Chin B. Henry (1978) with modifications. The samples were previously exposed at room temperature for 18 hours in order to increase their histamine content. Dilutions of 3,4 and 5 mg/ml of horseradish peroxidase (HRP). The present modification improves the Lerke, et. al. (op.cit.) methodology and makes it easy to use in the laboratory and in the field.
Tipo: Journal Contribution Palavras-chave: Histamines; Methodology; Quality control; Testing; Fishery products; Testing; Fishery products; Methodology; Http://aims.fao.org/aos/agrovoc/c_7683; Http://aims.fao.org/aos/agrovoc/c_2941; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1985 URL: http://hdl.handle.net/1834/3224
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Identificación y morfometría de las mandibulas de Loligo gahi y Loligo sanpaulensis (Cephalopoda, Loliginidae) del Atlántico Sudoccidental OceanDocs
Pineda, S.E.; Aubone, A.; Brunetti, N.E..
Beaks of Loliginid squids have very similar morphological features making identification of the species to be quite difficult. A new metodology to identify species from the relative growth of some parts of the beak is presented. Samples of Loligo gahi and Loligo sanpaulensiswere obtained from ten reserch cruises of RVS "Dr. Holmberg" and "Captain Oca Balda" and eight commercial landings at Mar del Plata Port during the period 1992-1993. The results obtained using the new metodology (Metric Discriminant Criterium)were compared with those resulting from the application of the Fisher's Lineal Discriminant Criterium. Both mantle length - rostral length and total weight - rostral length relationships, corresponding to each species were fitted. Either upper or...
Tipo: Journal Contribution Palavras-chave: Morphometry; Methodology; Growth curves; Methodology; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1996 URL: http://hdl.handle.net/1834/1961
Registros recuperados: 6
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