Table 1

Zebrafish viability in anoxia

PeriodHours after fertilization*Percent alive after 24 h of anoxia (N)
Cleavage283.1 (89)
Blastula483.2 (85)
Gastrula697.7 (90)
Segmentation1398.8 (85)
Straightening
 Early2564.0 (100)
 Middle304.4 (91)
Hatching500 (130)
  • N is total number of embryos. 

  • * h.p.f. when placed in the anoxic environment.