Acclimation to captivity and GnRHa-induced spawning of meagre (Argyrosomus regius)

TitleAcclimation to captivity and GnRHa-induced spawning of meagre (Argyrosomus regius)
Publication TypeJournal Article
Year of Publication2008
AuthorsDuncan, N, Estevez A, Padros F, Aguilera C, Montero FE, Norambuena F, Carazo I, Carbo R, Mylonas CC
Issue2 SUPPL.
Pages332 - 333
KeywordsAcclimatation, GnRH, Hormonal induction, Meager

Twelve meagre (Argyrosomus regius) of mean weight 20 ± 7 kg were captured and acclimatized to captivity using environmental control and de-parasitizing protocols. An active feeding response and the occurrence of sexual maturation to advanced stages indicated that the fish adapted well to captivity. Spawning was induced with hormonal treatments, two GnRHa-injected females spawned 7,221,000 floating eggs (in 3 spawns) and two GnRHa-implanted females spawned 9,515,000 eggs (in 9 spawns), with a mean ± SD hatching percentage of 45 ± 29 and 64 ± 28, respectively.


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