Category: Biology

Photofeature: Embryonic Developmental Stages of Fishes

Embryonic developmental stage of exotic grass carp (Ctenopharyngodon idella) of Bangladesh are observed through a binocular microscope. All photographs (which are given bellow) are taken with the combination of binocular microscope, DSLR camera and adapter applying own techniques.

 

Zygote, a fertilized egg

Zygote, a fertilized egg

Single cell

1 cell

2 cells

2 cell

4 cells

4 cell

8 cells

8 cell

16 cells

16 cell

32 cells

32 cell

64 cells

64 cell

256 cells

256 cell

High stage

High stage

50% epiboly

50% epiboly

Germ ring

Germ ring

70% epiboly

70% epiboly

4 somites

4 somites

8 somites

8 somites

13 Somites

13 Somites

15 somites

15 somites

17 somites

17 somites

20 somites

20 somites

25 somites

25 somites

 

NB. Only some important as well as selected stages of embryonic development of grass carp are presented here.

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Author

Technical Specialist, WorldFish Center, Bangladesh and South Asia. B.Sc. Fisheries (Honours) from FMRT, KU and MS in Aquaculture from BAU. Contact: balaramssoq@yahoo.com

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