Moon Jellyfish

Last week I went to the Vancouver Aquarium and discovered Aurelia aurita .

I like jellyfish. Jellyfish has many kinds. My favorite love is Aurelia aurita. Many people call them "Moon Jellyfish". Just depend on its appearance. Its body is like an umbrella, like a ball. It is very cute and about 10 to 30 cm in diameter. It is transparent. It lives in optimum temperature 22 - 26 degrees, the maximum temperture is 30 degrees, and the low limit is 15 degrees.  Optimal salinity range 21 - 23. Salt of a lower bound of 24, up to 32. If the water quality vitality better, energy is better.

First of all, it has a soft body and the skin is smooth, and also is bioluminescente in the water.

Jerryfish is an inverte made up mostly of water, it has no heart, brain or bones. It's made up of 96% water, 3% protein and 1% minerals. The body is like an umbrella. Jellyfish are invertebrates. Therefore, it looks very softble. It bioluminescence by virtue of a protein called aikuilin's magic, the protein encounters calcium, will be able to issue a strong blue light. So that is why its body is soft and the skin is smooth. Now we can know why it can bioluminescence in the water.

Secondly, it can swim, and move slowly and cute.
Jellyfish swim by jet propulsion. The jellyfish will expand then quickly contract its bell-shaped body, which forces water away from the bell and pushes the jelly in the opposite direction. Its round head, follows the flow movement. Sometimes, it looks like a little baby, moving so slowly. It's likes a lazy person, don't want to do anything. Maybe not it doesn't want to swim faster, just because it depends on the flow, if the flow is fast, it can swim fast, I believe. Consequently, it's cute in my eyes.

Finally, it is beautiful and also can protect itself.
When jellyfish float in water, the edge of the umbrella groups of hair(the tentacles with stinging cells) and flowing like the case of many small flocks of sea snake dance, very elegantly and beautiful, but if you touch the jellyfish accidentally, it'll be dangerous, even you would die. Jellyfish have speciatized stinging cells, called cniodocytes. Each of these cells contains a nematocyst which acts like a mini-harpoon. When a jellyfish touches something the nematocyst is released and injects toxin into the prey. Fortunately, I have not touched the jellyfish.


In conclusion, I love jellyfish, especially Moon Jellyfish. It is clever, cute, beautiful.