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Title: Engorde de pulpo común Octopus vulgaris en jaulas en la comunidad Canaria: efecto de la dieta y la densidad inicial
Authors: Estefanell, J.
Socorro Cruz, Juan Antonio
Roo, Javier 
Negrín Báez, Davinia
Benítez Santana, Tibiábin
Rincón Martínez, Laura 
Guirao Guijarro, Rafael
Fernandez-Palacios, H. 
Izquierdo, Marisol 
UNESCO Clasification: 310502 Piscicultura
251092 Acuicultura marina
Keywords: Pulpo
Cría y explotación
Issue Date: 2009
Abstract: Octopus vulgaris on-growing in floating cages is a promising activity implemented in Spain at industrial level, with productions of 16-32 tons/year from 1998. Nevertheless, some aspects of the culture system need to be evaluated to warrantee its profitability. In the present work absolute growth rate (AGR, g/day) and mortality (%) under two initial rearing densities, 10 and 17 kg/m3, were compared under two feeding regimes over 15 weeks. One diet was composed by bogue, supplied as ?discarded? species from local fish farms. The other diet was based on a 40-60% discarded bogue-crab Portunus pelagicus. Half of the reared octopuses were PIT-tagged and two sampling points were established along the experimental period. Regardless of dietary treatment, up to the 11th week, growth was 19 and 13 g./day for the low and high rearing density. On the other hand, up to the 11th week mortality was higher in the control diet fed group (30%), reaching 74-84% by the end of the experiment regardless of rearing density and dietary treatment, which could suggest some nutritional imbalance of the tested diets.
Source: XII Congreso Nacional de Acuicultura, Madrid 24-26, Noviembre 2009
Rights: by-nc-nd
Appears in Collections:Póster de congreso
Poster Congreso Acuicultura (2009)
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