996 resultados para Sáinz de Baranda, Pedro, 1797-1853


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[EN]Octopus vulgaris is a potential candidate to diversify European aquaculture for its rapid growth and high market prices (Vaz Pires et al. 2004). One factor affecting industrial development of octopus culture is sexual maturation under rearing conditions. Octopus females can lose up to 30-60% of their initial body weight during egg-laying (Iglesias et al., 2000) and die after the paralarvae hatch (Guerra,1992), while a correlation between males death and spermatic sac depletion has being recently reported by Estefanell et al. (2010b). The present experiment discusses the effect of three different sex ratios on growth, sexual maturation and survival in O. Vulgaris. Conclusions: Discarded bogue from fish farms could be used as alternative diet for the final stage of O. vulgaris ongrowing ; Male segregation would maximize biomass increment ; Under the conditions described, sex ratios close to 1:1 produced higher biomass increment than 4:1

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Inauguración de la exposición sobre Pedro Massieu Verdugo (1926-2009) celebrada en el Colegio de Arquitectos de Canarias, Demarcación de Gran Canaria. Fue presentada por Carlos Guigou Fernández en el año 2005

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[EN]The present work pretends to be the first step towards the development of a commercial diet for Octopus vulgaris. A one month experiment evaluated growth on two treatments, a wet experimental diet and a control (bogue), obtaining a daily growth rate of 1,6 and 16 g/day respectively. Octopuses were tagged and a better growth tendency was found in middle size animals in each experimental tank

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[ES] Se estudia aquí la ontología personal de Laín Entralgo en su primera etapa. Laín aborda la relación médico-enformo desde una perspectiva personal. La reflexión antropológica la extiende al problema de España.

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Programa de Doctorado, Acuicultura: Producción controlada de animales acuáticos