Cría en cautividad del pez de San Pedro, Zeus faber (Linnaeus, 1758)
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AuthorsDomínguez, A.; Saavedra, C. (Camilo); Peleteiro-Alonso, J.B. (José Benito); Álvarez-Blázquez, B. (Blanca); Pérez-Rial, E. (Evaristo); Soares, E.C. (Emerson); García, C.
An artificial fertilization of the Zeus faber was realised by stripping of 2 females and 4 males. Photographs were taken and the principal stages of embryonic and larval development were identified. The eggs were 1.99 ± 0.036 mm of diameter, totally spherical, with a clear and unsculptured eggshell, a narrow perivitelline space and a single oil globule of 0.41 ± 0.014 mm of diameter; incubation was realised to a temperature of 16 ± 0.5 °C and hatching took place on the 11th (176 degrees/day ± 5). The larvae measured 4,3 ± 0,21 mm of length at hatching and were maintained during 20 days to 19,5 ± 0,5 °C. They fed Artemia salina from the fourth day after to hatch (two days after the reabsorption of the yolk-sac). The larvae presented an extensive pigmentation with two typical spots in the dorsal and anal fins; the pigmentation was in increase along the development except in the caudal fin and last vertebral segments and the pelvic fins were shaped large and colourful. The biometric ...
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