Medaka Fish Sushi and JJ


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Medaka Fish Sushi and JJ

  1. 1. JJ the Fish<br />By: Joe Roberts<br />
  2. 2. Day 1, April 7<br />This is the day that I first met my Medaka egg. I decided to name him JJ. It had only been .2 hours since he was born. He was very new and didn’t have many features. <br />Stage 2(.2 hrs)<br />
  3. 3. Day 2, April 8<br />It is the second day of JJ’s life. I can’t believe what I see! His little heart is beating for the first time. I can actually see what was going on in his egg.<br />heart<br />Oil globules<br />Yolk sac<br />Stage 17 (23 hrs)<br />
  4. 4. Day 2, April 8 (heartbeat)<br />
  5. 5. Day 3, April 11<br />JJ is developing even more. His blood is now visible. It is an red-orange color. JJ is starting to have more features for me to observe.<br />Blood<br />Optic cup/eye<br />Stage 25<br />
  6. 6. Day 4, April 12 <br />It is my fourth day with JJ. I start to notice that he is more slowly developing than the other fishes. More things are visible this day, but less than the other groups.<br />cytoplasm<br />Stage 29<br />
  7. 7. Day 5, April 13<br />It is the fifth day with JJ. I can actually start to see a fish in the egg. I can tell he is starting to develop more, and is getting closer and closer to hatching.<br />Mouth/jaws<br />Pectoral fin<br />chorion<br />Stage 31<br />
  8. 8. Day 6, April 14<br />It is my sixth day with JJ. His heart is starting to beat faster and he is moving sometimes. I really hope that he hatches soon, but we will see tomorrow.<br />Stage 34<br />
  9. 9. Day 7, April 15<br />It is our seventh day with JJ. While other groups eggs have hatched, ours is still in its egg. I notice that it hasn’t changed much since the day before.<br />
  10. 10. JJ’s Death<br />We look under the microscope for a long time. After a little we notice that he is not moving and his heart is no longer beating. Our JJ is now dead. <br />
  11. 11. Adoption of Sushi<br />After the death of JJ, our group needs a new fish to observe. So, we picked out one of the extra fish. We decided to name him Sushi. He seems like he is much more developed than JJ was.<br />brain<br />somites<br />
  12. 12. Sushi Hatches<br />It has been a very eventful day. First, JJ dies, then we adopt Sushi and he hatches. I am sad that my time with Medaka fish is over. I will not be seeing Sushi again. It is a little sad to know this.<br />
  13. 13. THE END!<br />