n = 30
Eggs colouration and eggs size during embryonic development: Table 2 showed egg coloration and mean egg size diameter during embryonic development of P. pelagicus. Eggs of P. pelagicus were spherical and bright orange in color when first deposited. It became yellow, brown and black before reaching the hatching stage. Eggs diameter varies from stage to stage of the embryonic development. Mean egg size during embryonic development at stage 1 was 0.307±0.037), while 0.386±0.039 and 0.396±0.033 for stage 2 (Fig. 1) and stage 3 (Fig. 2), respectively.