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Medaka Project

Medaka Project. By Taylor Hopkins and Kayla Knox. Introduction. Hello, my name is Alfy. I am a Japanense medaka fish, and I start from an egg. In the following slides, you will see the beginning of my life, when I’m growing inside the egg, to when I first start swimming around!.

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Medaka Project

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  1. Medaka Project By Taylor Hopkins and Kayla Knox

  2. Introduction • Hello, my name is Alfy. I am a Japanense medaka fish, and I start from an egg. In the following slides, you will see the beginning of my life, when I’m growing inside the egg, to when I first start swimming around!

  3. This was the first day I met my parents. At this point in my life, my heart was beating and you could not see anything significant going on. At this stage, the age of the egg is about 33 hours.

  4. This is my third day with my parents. This was my first time they saw my heart beating. It was beating 96 beats per minute. They could also see my clear blood circulating At this stage, the egg is about 1 day and 46 hours.

  5. This was the first day my parents could actually see that I was a fish. On this day, you could fully see my eyes. The egg is now 56 hours of age.

  6. By this time, my parents could see my tail and fins. They also counted my heart beats, there were 126 beats per minute. And my blood seemed to be pink. The egg's age is about 84 hours.

  7. As you can see in this picture of me, my heart was now beating 140 beats per minute. My blood was also flowing dark pink. The egg is now 102 hours.

  8. This is a very blurring picture of me, but my heart was now beating 170 beats per minute. I could also feel my pectoral fin fluttering. The egg is about 144 5 hours.

  9. As you can see, I’m getting pretty big. I just couldn’t wait to hatch. I’m getting so excited! I can’t wait to swim around and get out of this egg! The egg is now 200 hours.

  10. I have finally hatched. And it feels wonderful. This is a very nice picture of my head and upper body. My fins let me swim around, and they’re showed in the picture here.

  11. This is a picture of my tail. This also lets me swim around, and my caudal fin helps me steer my way through the fresh water my parents keep for me. This is the last day my parents saw me.

  12. Functions: Dorsal Fin- helps prevent rolling; used for sudden turns and stops Caudal Fin- Also known as the tail fin; provides locomotive power for forward motion Pectoral Fin- this helps the fish steer, propel, and stop Optic Cup/Eye-  helps the medaka fish see Brain- interprets sensory data;  regulates bodily functions Mouth/jaw- these let the fish ingest the food it needs Somites- these are the little black dots you see in the tails

  13. Funcions Cont. Filament - little tiny "hairs" on the outer edge of the egg Chorion - one of the membranes that exists during development Cytoplasm - jelly-like material that helps hold everything in place Yolk Sac - a membranous sac attached to an embryo, providing early nourishment in the form of yolk Oil Globule - a source of food for the developing embryo Heart - the organ which pumps the blood through the embryo

  14. Requirements of Hatching and Beyond What you need: small dish to keep egg in fresh spring water dropping pipet medaka booklet Before egg hatches: You need to change the water everyday. Take about 3/4 of the water our and replace with fresh spring water. To make sure you don't lose the egg, you may want to take it out of the water before you change it, the pipet is helpful for this. You should monitor your egg and take pictures to see how it is coming. A microscope and motic cam are helpful in that process.

  15. More requirements: After the egg has hatched: After it has hatched, you will need to put it in a different bowl. The bowl should have a filter in it to keep the water fresh. You should feed your fish small amounts two to three times a day. I would also advise you to change the water often.

  16. Movie

  17. Movie # 2

  18. Conclusion • I hope you enjoyed watching me grow from inside my egg until I hatched. I plan to grow up and be adopted by other parents so I can live a long, happy life. :]

  19. Resources: • <ref>http://www.embl-heidelberg.de/mepd/medakaStages/MedakaDevStages.html</ref>| • <ref>http://biog-101-104.bio.cornell.edu/BioG101_104/tutorials/Medaka_stills.html </ref>|

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