Embryology and early ontogeny of an endemic tooth-carp fish, Aphanius sophiae (Heckel, 1847)

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    Abstract

    Understanding embryonic development and ontogeny of species is a crucial part of any further biology, ecology and conservation studies. The present study describes the first detailed normal embryonic development of a tooth-carp, Aphanius sophiae (Heckel, 1847), from fertilization to post- hatching. Aphanius sophiae spontaneously spawned at 24 ± 1°C. The newly laid eggs were transparent and spherical (1.45 ± 0.20 mm). We documented developmental times at 24 ± 1°C to egg activation (0.5 hr), cleavage (3 hr), blastula (10 hr), gastrula (20 hr), neurula (24 hr), somite (28 hr), turnover (60 hr), blood circulation (70 hr) and hatching (330 hr). This study contributes to a further understanding of the embryology and the early ontogeny of A. sophiae and may help improve the culture of other threatened species of the genus Aphanius.

    Original languageEnglish
    Pages (from-to)622-632
    Number of pages11
    JournalJournal of Applied Ichthyology
    Volume34
    Issue number3
    DOIs
    Publication statusPublished - Jun 2018

    Keywords

    • cyprinodontid fishes
    • embryogenesis
    • organogenesis
    • staging

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