Embryonic and early development of the Zagros tooth‐carp, Aphanius vladykovi Aphanius vladykovi (Actinopterygii: Cyprinodontidae)

摘要

Abstract The embryonic and early larval development of laboratory reared Zagros tooth‐carp, Aphanius vladykovi Coad, 1988, are described and illustrated. Development and embryogenesis start with the external fertilization of sticky, transparent and spherical telolecithal/macrolecithal eggs with a mean diameter of 1.61± 0.12 mm and it continues with meroblastic/radial cleavage, blastulation/blastula formation, epibolic cell migration during gastrulation and organogenesis resulting in a newly hatched larvae of 5.23?±?0.09 mm in length with attached yolk sac at about 164 hr (at 24?±?1°C) after fertilization.