The reproductive biology of Lutjanus fulviflamma (Forsskål,1775) (Pisces: Lutjanidae) in Kenyan inshore marine waters
Source: Hydrobiologia, Volume 353, Number 1-3, 19 September 1997 , pp. 153-160(8)
Abstract:The testicular and ovarian maturation cycle of the dory snapper, Lutjanus fulviflamma (Forsskål) (Osteichthyes:Lutjanidae), a commercially valuable species in the western Indian Ocean, is described macroscopically. The ovary was also studied microscopically. L. fulviflamma has one prolonged spawning season which begins from November/December, lasting till April/May. Discontinuous spawning is established by (i) temporal variation in the relative weight of testis and ovaries, (ii) a seasonal occurrence of various maturity stages and, (iii) a seasonal occurrence of developing fish in the samples. Using volumetric and histological techniques, the fecundity of this species was determined at 51,000 to 460,000 (mean: 167,000) oocytes in fish of between 17 to 30 cm total length, respectively. Oocyte recrudescence in the ovary is asyncronous, but the number and size of batches of eggs released in a single spawning season are yet to be determined.
Document Type: Regular Paper
Publication date: 1997-09-19