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Nematocytes. The actual stinger is a sub-cellular organelle of the nematocyte cell, called a nematocyst. A nematocyst is a non-living secretion of the cell (like a human hair, or a bird's feather). It consists of a sac filled with venom and a long inverted tube. When triggered by the right combination of tactile, chemical, and neuronal stimuli, a hinged door opens to let the tube shoot out of the sac. It acts similar to blowing into a partially inverted latex rubber glove, where the fingers of the glove evert (the opposite of invert) as you blow into the glove opening. Except that the nematocyst tube is relatively much longer than the fingers of a rubber glove. The tube which only measures a micron or two in diameter can extend to almost a millimeter, long enough to penetrate (and deliver venom to) its prey, or occasionally innocent bystanders like us, yikes!!!
The moral of this story is that if you swim with dangerous jellies, try not to bump into one before they are full, and above all, try not to smell like food.
Darn, I just remembered the question was about moon jellyfish. Never mind, they only have a mild venom to us, and their stingers can't penetrate our skin, except for maybe our lips and eyelids.
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Food adaptations for the moon jellyfish?
The moon jellyfish has a feeding tentacle that hangs at each corner of its mouth. The tentacle has stinging cells that are used to capture small prey and drag it to its mouth.
How do Moon jellyfish protect themselves?
Stinging tentacles.
What are baby moon jellyfish called?
they are called ephyra
How does the moon jellyfish protect itself?
Jellyfish have cells called cnidocytes, which contain nematocysts, and located on their tentacles and on their manubrium. Whenever a predator comes in contact with cnidocytes, hundreds to thousands of cnidae (filaments of the nematocysts) are ejected in the predator's direction. Nematocysts' cnidae inoculate a poisonous or allergenic mixture into the predator's body.
What jellyfish are not poisonous?
freshwater jellyfish moon jellyfish cannonball jellyfish p.s. they don't sting humans but they do spit mucus blue blubber jellyfish P.S. they r not harmful unless u r very sensitive moon light jellyfish
What types of jellyfish are in Miami?
The most common type of jelly fish found on the coasts of Miami are Aurelia Aurita. Also called the jelly, moon jelly fish, moon jellyfish, common jellyfish, saucer jelly or swimming jellyfish.These jellyfish can be found in the Altantic, Pacific and Arctic ocean. It feeds by stinging small medusans, plankton and mollusks with its tentacles and bringing them into its body for digestion, but is capable of only limited motion; like other jellies it drifts with the current.
How many stomachs does a moon jellyfish have?
The moon jellyfish has one stomach.
What are the weakest types of jellyfish?
moon jellyfish
What is a scientific name for moon jellyfish?
The scientific name for moon jellyfish is Aurelia aurita.
What is the family genus and spiecie of the jellyfish?
There are many different type of jellyfish, so there is no specific genus and species for all of them. For example, the Upside-Down jellyfish is called Cassiopea xamachana. The moon jellyfish is Aurelia aurita.
What eat the moon jellyfish?
Whales, turtles, and larger types of fish all eat the moon jellyfish. The moon jellyfish is thought to have existed for millions of years.
What are jellyfishes prey?
Jellyfishes are made up of 95% water for easy floating. They use their stinging cells for stinging and killing prey and their larger tentacles (oral tentacles) for properly putting food into their mouths.
