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By: Lindsay Huey & Abby Brauer. Our Medaka Project. The life cycle of a Japanese Medaka. Basic Information on Japanese Medaka. A Japanese Medaka became a known fish in the early 1700’s. They originated in Japan clear waters. They were often kept in schools and places with kids.
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By: Lindsay Huey & Abby Brauer Our Medaka Project The life cycle of a Japanese Medaka
Basic Information on Japanese Medaka • A Japanese Medaka became a known fish in the early 1700’s. • They originated in Japan clear waters. • They were often kept in schools and places with kids. • This is because they are so easy to take care of.
Caring for a Japanese Medaka • It is very easy to take care of a Japanese Medaka. • Prenatal Phase- Change water daily; Use clear water. • Postnatal Phase- Change water in tank 1-2 weeks, feed (common premature turtle food) • This shows how easy a Medaka is to raise and take care of.
Function and Description of Parts Below are some parts of the Medaka that you might never have heard of before or heard what they do. • Chorion- one of the membranes that exists between the fetus and mother during development. • Cytoplasm- part of the cell within the plasma membrane where cellular activities occur. • Yolk Sac- a membranous sac attached to an embryo, providing early nourishment. • Dorsal Fin- protect the fish against sudden turns or stops • Optic Cup- a cup converted from when the optic vesicles become thickened. • Somites- masses of mesoderm distributed along the two sides of the neural tube.
Japanese Medaka: Day 1 Our results for this experiment: • Day one of the Japanese Medaka was very successful. We got the basic information needed to go through with our project. • We were able to see, though not clearly, the heartbeat on Day one. • Heart Rate: 110 beats per minute • Stage: about 26
Japanese Medaka: Day 3 • Day 3 for the Japanese Medaka wasn’t a necessarily big step. It just got gradually older and showed very little changes. • Although it changed very little, more visibly you can see the outline of the fins developing • We were able to see the heartbeat clearly on Day 3. • Heart Rate: 120 beats per minute • Stage: about 28
Japanese Medaka: Day 5 • Day 5 with the Japanese Medaka was extremely important. This is the peeking point of the development stage. • As a last chance in the egg this visual is a clear determination of what stage this Medaka is in. • This stage you can see excessive movement. • Heart Rate: 143 beats per minute • Stage:30
Japanese Medaka: Day 7 • Day 7 for the Japanese Medaka came together showing all your skills in raising it prenatally. • This stage was the hatching stage and it introduced us to our fish. • Heart Rate: 163 • Stage: Hatching Stage • Edger was born :)
Resources • http://biog-101-104.bio.cornell.edu/BioG101_104/tutorials/Medaka_stills.html • http://medakabasic.com/4985930_pidcs.html
The End. • Thanks for watching our Japanese Medaka grow! • Edger says goodbye.