The effect of different short pulse feeding regimes on growth and survival of Atlantic bonito larvae Sarda sarda
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Autor/esBlanco, E. (Edurne); Reglero, P. (Patricia); Folkvord, A.; Ortega-García, A. (Aurelio); de-la-Gándara, F. (Fernando); Viguri, J.; Fiksen, O.
Palabras claveSarda sarda
One of the most easily manipulated variables in fish larval culture is the photoperiod. Long light photoperiod regimes are commonly used to enhance growth in commercial species. However, for species with a piscivorous larval period, as the Atlantic bonito (Sarda sarda), long time exposure to light could lead to a lower survival through aggressive behavior and cannibalism. One alternative could be modifications of the light and dark cycles during the photophase. These modifications can result in short pulse feeding regimes since bonito larvae fill up their stomach completely during light hours but do not feed in darkness. Little is known about how such intermittent feeding regimes affect growth and survival in fish. In this study, we tried different alternating and continuous light regimes during the culture of bonito larvae to identify the best regime that maximizes growth and survival.Fertilized eggs of Atlantic bonito were obtained from different spontaneous spawning events by a captive ...
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