Efecto de distintas dietas en el crecimiento de larvas de mejillón (Perna perna L. 1758)

Abstract

D-larvae of Perna perna appeared 40 to 44 hours post-fertilization at 21±1ºC. The umbo-stage was observed at 11-days-old followed by the pediveliger stage at 26 days post-fertilization. The larval development showed two growth phases: mixotrophic and exotrophic. The compositions of diets significantly affected larval growth with higher rates in larvae fed mixed microalgae in comparison with the ones fed a monospecific diet. Fatty acid analysis revealed that the larval growth was influenced by the proportions of dietary DHA and EPA. These results indicate that the DHA and EPA contents are keys factors in determining larval performance.