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Environmental Biology of Fishes

, Volume 38, Issue 1–3, pp 73–80 | Cite as

New data on the reproductive biology of the thorny stingray,Dasyatis centroura (pisces: Dasyatidae) from off the Tunisian coasts

  • Christian Capapé
Article

Synopsis

Aspects of the reproductive biology are described for the thorny stingray,Dasyatis centroura, caught off the coasts of Tunis, mainly from the Gulfs of Gabes and Tunis. Sexual maturity in males occurs at a disk width (DW) of 800 mm. Female maturation occurs between 660 mm and 1000mm DW All males and females having a DW greater than 800 and 1000mm, respectively, were adults. Females are larger than males, with adult specimens having an average DW of 1040mm in males and 1345mm in females. Gestation lasts for a minimum of about 4 months. The number of reproductive cycles per year is unknown. Vitellogenesis is completed at the end of the gestation. Parturition and ovulation occur in June. Fecundity ranges from 2 to 6 individuals per litter.

Key words

Sexual maturity Size at maturity Reproductive cycle Fecundity Mediterranean Gulf of Gabes 

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Christian Capapé
    • 1
  1. 1.Laboratoire d"Ichthyologie, case 102Université Montpellier II, Sciences et Techniques du LanguedocMontpellier cedex 5France

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