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Aurelia Aurita Research Paper

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Aurelia labiata and Aurelia aurita, or moon jellyfish, live in the waters of the Pacific Ocean ranging from San Diego, California up to the waters of Prince William, Alaska. The Aurelia labiata closely resembles the Aurelia aurita, which is a species that lives in coastal waters all around the world. This resemblance makes it difficult to establish the true range of the moon jellies. They prefer to float near the surface of warm waters near shore, particularly harbors and bays. However, they are also known to be pelagic, or living in the open ocean. They can be found in depths up to one thousand meters in temperatures from negative six to thirty one degrees celsius. Moon jellyfish have a lifespan of about a year. They reproduce using internal fertilization. Their gonads are among the most distinguishable characteristics of the species. …show more content…

Their main predators are the lion’s mane jellyfish, birds and turtles. The sting produced by these particular nematocytes does not harm humans and is described as mild. The feeding and defense mechanisms are intrarelated. The mouth is surrounded by tentacles that release the nematocysts when food is brought in toward the mouth. The stinging cells will immobilize the prey until it can be digested. Once inside the jelly, the victim will be broken down by digestive enzymes. Since the jellyfish do not have a separate mouth and anus, it cannot eat again until it has ejected the waste of its meal back through its mouth. As larvae, these animals use cilia to move themselves through the water. Most of their travels however are dictated by the ocean currents. They literally “go with the flow.” When they do move on their own, it is usually to be near the surface of the water. They do this by propelling themselves through the water. The base of the bells is lined with muscles that contract rhythmically creating a jetlike

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