First feeding of the European hake merluccius merluccius: Influence of light and tank background
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AuthorsCostas, D. (Damian); Nande, M. (Manuel); Pérez, M. (Montse); Casal, A. (Arantxa); Lago-Rouco, M.J. (María Jesús); Costoya, N. (Noelia); Iglesias-Estévez, J. (José); Rodríguez, R. (Rosana); Palmeiro, Ó. (Óscar); Padrós, F. (Francesc); Carrason, M. (Maite); Gómez-Gesteira, M. (Moncho); Presa, P. (Pablo)
Optimal light characteristics are species-specific in aquatic environment. Each species needs a minimal threshold intensity to develop normally and grow, which is probably related to the aptitude to localize and catch preys. The synergistic effect of food availability-day-length appears to be determining at this stage. Long day-length stimulates growth, influences early maturation and improves larval rearing quality. However, a few species are able to develop and grow at very low light intensities or in the absence of light (Boeuf & Le Bailr 1999). In this study we tested feeding efficiency of hake larvae under various light conditions and tank background.
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