Fig. 3

Late embryonic development of A. burtoni. a After hatching, embryos rapidly develop their adult morphology, whereby at 13 dpf essentially all structures of the body plan are present. b Ventral view during 11–13 dpf shows progressive closure of the body wall over the yolk during these stages (white arrowheads). All stages are indicated following the staging table for Nile tilapia [41]. Abbreviations: dpf: days post fertilization; st.: stage