The higher stocking density the better physiological status of Seriola dumerili under ras conditions

Abstract

The diversification of species can be a good strategy for the economic success of the aquaculture industry. This strategy has been followed in Europe with international projects like DIVERSIFY, which highlights the role of some species, as Seriola dumerili, for its great potential, both taking biological and economic issues (Robles & Mylonas, 2017). For this purpose,it is necessary to determine optimal culture conditions for this species and one of these basic conditions is the stocking density. A first approach in this field was made by Jerez et al. (2017), who evaluated the effects of different stocking densities on this species. This study reached a maximum density of ~7 Kg/m3 for the high-density group, which showed a lower growth performance. However, our study was aimed to evaluate the metabolic orchestration, intestinal well-being and welfare reaching stocking densities higher than 30 Kg/m3 for the high-density group.