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c47
2000 - 394 p.
p. 177-180

Effect of the photoperiod on growth, survival and inflation of the swim bladder in dentex larvae (Dentex dentex L.)

Abellán E., García-Alcázar A., Arizcun M., Nortes M.D., García-Alcázar S.

Common dentex offers favourable prospects for farming in the Mediterranean area. The effect of the photoperiod on survival, growth and inflation of the swim bladder in dentex larvae has been studied in larval culture, from hatching to day 22, comparing 6 different light:dark regimes: 24:0, 18:6, 12:12, 6:18, 4:8 plus 4:8 and 0:24. Experiments were conducted in circular 1 m3 tanks in open circuit. Larvae cultured with photoperiods of 0:24, 6:18 and 4:8 plus 4:8 died before day 15. The best results in growth, survival and swim bladder inflation were found with the 18:6 photoperiod.

Mots-clés    

DENTEX, DIVERSIFICATION, LARVE, PHOTOPERIODICITE

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Abellán E., García-Alcázar A., Arizcun M., Nortes M.D., García-Alcázar S. Effect of the photoperiod on growth, survival and inflation of the swim bladder in dentex larvae (Dentex dentex L.). Recent advances in Mediterranean aquaculture finfish species diversification. Zaragoza : CIHEAM, 2000. p. 177-180. (Cahiers Options Méditerranéennes; n. 47). Seminar of the CIHEAM Network on Technology of Aquaculture in the Mediterranean on 'Recent advances in Mediterranean aquaculture finfish species diversification', 1999/05/24-28, Zaragoza (Spain). http://om.ciheam.org/om/pdf/c47/00600617.pdf