Zebrafish pictures

Lab pictures

All the following pictures can be used under CC BY 4.0.  Credit should be given to the National Institute of Genetics (©National Institute of Genetics).

One week old zebrafish larva trying to catch the prey (a paramecium)

larva30035 larva30052

larva30056 larva30061




larva40027  larva40031 larva40037



  • Date: 20170414
  • Microscope: Leica MZ16FA
  • Camera: Leica DFC300FX with an acquisition software, LAS (Leica Application Suite) 4.9
  • Exposure time: 5 ~ 20 ms. Zoom: 20x~30x
  • Zebrafish larvae: 6 day and 7 day post-fertilization
  • Set-up: Larval zebrafihs were put in a disposable cuvette (Parafilm was used to close the opening) with paramecia. A mirror was placed at 45 deg next to the cuvette  so that side view of the zebrafish larvae in the mirror can be observed with the (upright) stereo microscope.
  • Lighting: Dark-field illumination using a ring LED (CCS Inc.). LEDs facing up.  With a diffuser (circular shaped with an opening at the center).
  • Image processing: Cropping, contrast adjustment, sharpening were done  in ImageJ.


Five day old zebrafish larvae and paramecia

with two other larvae 01 with other larvae 03 with other larvae 02

with-other-larvae-01 (processed) With its mouth wide open,  5 day-old zebrafish larva is about to catch the prey (a paramecium).

single larva and prey 05 single larva and prey 04 single larva and prey 03 single larva and prey 02 single larva and prey 01  7 larvae 5-day old larvae with no paraecia



  • Set-up: Zebrafish larvae were put in an acrylic box.



Adult zebrafish

Here are some pictures of adult zebrafish. Females look yellowish and males look pinkish.

DSC01635 Female and Male DSC01627 Two fish DSC01610 Female and male DSC01595 Two fish    DSC01211 Nacre fish nacre homozygote fish that lack melanophores.



Fish tanks in Kawakami lab at the National Institute of Genetics (NIG)

DSC01693 Fish tanks DSC01699_Fish tanks closer look DSC01557 Fish tanks (tate) DSC01552 Fish tanks lined up