Growth of Octopus vulgaris (Cuvier, 1797) in tanks in the Ebro Delta (NE Spain): effects of temperature, salinity and culture density
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Publication date
2011-03-30ISSN
0214-8358
Abstract
To assess the possibility of O. vulgaris ongrowing using tanks or cages in the bays of the Ebro Delta, we performed several growth trials of common octopus held in tanks. Effects of environmental factors (temperature and salinity)
and zootechnical aspects (culture density) were studied. The thermal ranges that defined positive growth periods in the bays
of the Ebro Delta were 19.5ºC to 23ºC (spring-summer) and 23.5ºC to 12.3ºC (autumn-winter), the latter being the most
suitable period for ongrowing. Salinity did not affect survival (100%) or growth within the range tested (34-29 psu), though
feeding rates (AFR, SFR) were directly related to salinity. On the other hand, after 60 days, final culture density increased
three-fold (D1: 12.36 → 44.37 kg m–3; D2: 24.13 → 67.76 kg m–3), with optimal survival results (>90%) for the two densities tested. Growth and feeding rates showed a slight inverse relationship with density. Finally, growth and feeding rates
showed a clear dependence on temperature in the two experiments (density and salinity). Our results conclude that industrial
production of O. vulgaris in tanks is promising: this system offers an alternative to cages and allows for a more exhaustive
control of culture.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
639 - Hunting. Fishing. Fish breeding
Pages
7
Publisher
Consejo Superior de Investigaciones Científicas
Is part of
Scientia Marina
Citation
Delgado, Marina, Joan Ignasi Gairín, Ricard Carbó, and Cristóbal Aguilera. 2010. “Growth of Octopus Vulgaris (Cuvier, 1797) in Tanks in the Ebro Delta (NE Spain): Effects of Temperature, Salinity and Culture Density.” Scientia Marina 75 (1): 53–59. doi:10.3989/scimar.2011.75n1053
Grant agreement number
MAPAMA/JACUMAR/ /ES/Optimización del engorde de pulpo (Octopus vulgaris)/
Program
Aqüicultura
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2607]
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