Jellyfish (How Long Do Jellyfish Live):

jelly fish | umbrella head fish

Jellyfish are undoubtedly the most unusual and magical creatures on the planet. Jellyfish is not precisely a fish; they are invertebrates. It is composed of 98 percent of water, and jellyfishes don’t have brain, bone, heart. The remaining body of jellyfish is a composition of proteins, nerve cells, and muscles. It is said that jellyfishes are floating in the oceans millions of years before dinosaurs existed.

Jellyfish Scientific Name:

The scientific name of jellyfish is Scyphozoa, and the scientific classification of a jellyfish contains kingdom, phylum, and subphylum.’

Where Do Jellyfish Live?

There is no particular habitat of a jellyfish; they can be found the vast Ocean in all over the world. Some species of jellyfish can be found in the warm tropical Ocean, while some can be found in the cold Arctic Ocean. Some species live at the bottom of the Ocean while some live close to the surface.

Do Jellyfish Have Tentacles?

Jellyfishes do have tentacles around their mouth that help them to stun upon their prey. The length of the arms depends on the type of jellyfish species.

Different Types of Jellyfish:

Box jellyfish-

The scientific name of box jellyfish is Cubozoa. Box jellyfish are known for their toxicity, which is developed to kill its prey instantly. The venom of a box jellyfish is considered as the deadliest in the world that can attack the heart, skin cells, and nervous system. One can find the box jellyfish in the coastal area of northern Australia and throughout the indopacific Ocean. They are transparent and pale blue, they get their name from a cube. Box jellyfish have 15 tentacles that grow on each corner of the bell. Each limb has 5000 stinging cells that are not visible. The arms can grow to 10 feet in length. Box jellyfish can weigh to 4.4 pounds and can survive up to one year.

True jellyfish-

Scientifically known as scyphozoans, true jellyfish are comparatively less deadly than box jellyfish. The sting of the true jellyfish can cause skin rashes, irritation, and muscle cramps. The most significant spices of true jellyfish can have 40 meter long tentacles. Although true jellyfish inhabit the deep sea, most of them live near the coastal water. True jellyfish mostly feeds on larval fish and plankton; they move by contracting and relaxing the muscles of the body wall. Like other jellyfishes, true jellyfish also catch their prey with the help of the tentacles.

Lion’s mane jellyfish-

The lion’s mane jellyfish is also known as Cyanea Capillata; it is the giant jellyfish on the earth. It can grow up to 800 tentacles, which can float 100 meters below it. The lion’s mane jellyfish can be found in the cold oceans of the arctic, Atlantic and pacific. 

Golden Jellyfish-

Golden Jellyfish is known as Mastigias Papua Etpisoni, golden jellyfish habits in the saltwater of Palau near the Philippines. These species spend their day in migrating back and forth across the western shore. Golden jellyfish’s sizes up to 5.5 inches. They are named for their golden tentacles and domes.

Flower-Hat Jellyfish-

Olindias Formosus, the scientific name of flower hat jellyfish, found in the water of Brazil, Japan, and Argentina. These species feed on small fishes with the help of their tentacles; these can size up to six inches. The life of a flower hat jellyfish is four to six months. Flower hat jellies have a translucent bell and multi-colored tentacles. Under the blacklight, these appear to be as a firework.

Moon Jellyfish-

Aurelia Aurita is the species of the jellyfish commonly seen on the shores of North America and Europe. It lives in about 20 feet deep in water and has a blue or pink color.

Jellyfish Facts:

  • Even though their name is jellyfish, but they are not fish, they are invertebrates and absorb oxygen through membranes.
  • Jellyfish have six major body parts- epidermis, gastrodermis, mesoglea, gastrovascular cavity, orifice, and tentacles.
  • The development of a jellyfish includes three stages-

            I. Polyps- baby jellyfish

           II. Ephrae- young jellyfish                            

           III. Medusae- adult jellyfish

  • Jellyfishes can be found in all the ocean waters of the earth. They can grow in the cold arctic water and warm tropical water, they have settled at the bottom of the Ocean and near the seashore.
  • It is believed that jellyfish have been around over 650 million years.
  • Jellyfish feed on other aquatic creatures such as shrimps, small fishes, and plants. Jellyfish use tentacles to catch their prey.
  • There are 25 types of edible jellyfishes typically found in salads and pickles. 
  • It’s a common superstition that if a person is stung by a jellyfish, another person should urinate on the sting to ease the pain. However, it’s not true.
  • Some jellyfishes are luminous creatures that can produce their light.
  • Jellyfish release their eggs and sperms in the water, which ultimately meet and get fertilized. The egg then becomes the embryo and develop in the water.

How Long Do Jellyfish Live

Normally jellyfishes have a lifespan of 12 to 18 months but with proper living conditions, they can live up to 20 years