| one publication added to basket [221036] | The reproductive biology of Lutjanus fulviflamma (Forsskal,1775) (Pisces: Lutjanidae) in Kenyan inshore marine waters
Kaunda-Arara, B.; Ntiba, M. J. (1997). The reproductive biology of Lutjanus fulviflamma (Forsskal,1775) (Pisces: Lutjanidae) in Kenyan inshore marine waters. Hydrobiologia 353: 153-160. dx.doi.org/10.1023/A:1003011013136
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, more
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maturation cycle, spawning season, fecundity, oocyte recrudescence |
| Authors | | Top |
- Kaunda-Arara, B.
- Ntiba, M. J.
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| Abstract |
The testicular and ovarian maturation cycle of the dory snapper, Lutjanus fulviflamma (Forsskal) (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. |
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