JellyFish Facts

Jellyfish Color

Jellyfish Color picture

Jellyfish Color

Jellyfish are fascinating and beautiful to look at, when they are swimming in the waters. They are found all over the world in every ocean and sea. There are also some species which are known to live in fresh waters, like lakes and rivers. There are 200 different types of jellyfish, and these come in different shapes, sizes and colors. All of them have a bell or dome shaped body with tentacles dangling on the underside. A jellyfish contains 95% water and hence is a delicate creature. The bell body is filled with a gelatinous substance, which has given the creature its name. The diameter of their bodies can range from a few millimeters to more than 2 meters.

The weird jellyfish does not have a brain, or any solid skeletal structure. They have a gastrovascular cavity which serves as a stomach, as well as an anus. The jellyfish is a predator and captures food with the help of its tentacles. These tentacles are armed with thousands of stinger cells, which inject a venom to immobilise its prey. There are a few oral arms around the opening of the cavity, which helps it, to ingest the food. It mainly lives on different kinds of plankton, small sea animals and larvae of other marine creatures.

The different species of jellyfish come in a fascinating array of colors. Actually a jellyfish has a translucent or transparent covering. The colors that we see are due to its own pigments or pigments of certain micro-organisms that are living within the jellyfish. These micro-organisms live in a symbiotic relationship with the jellyfish, and are varied, and come in different colors. Zoochlorellae is one of the type of micro-organism, which is green in color, and this will make the jellyfish appear in a greenish shade. The presence of Zooxanthellae micro-organism will make the jellyfish appear brown. Generally blue coloration in a jellyfish is attributed to the presence of Cyanobacteria. Certain Jellyfish like the pelagia noctiluca and trachymedusae are known to be bioluminescent and emit either greenish or multicolored flashes.

The color of a jellyfish will also vary among the same species. Many jellyfish change colors as they mature, and gain darker shades as they grow older. The lions mane jellyfish is one such example. When it is very young it has a pink and yellow coloration. As it matures it starts to turn dark red with shades of brown or yellowish brown. This is the largest jellyfish in the world and can grow to a size of more than 2 meters in diameter. This jellyfish has over a thousand tentacles in a thick cluster and they trail up to 100 feet in length. This cluster of trailing reddish brown tentacles gives this bizarre jellyfish its name.

The most commonly found jellyfish around the world is the moon jellyfish. It has a saucer shaped dome and has a four-leaf-clover shape design on the top. This is a translucent jellyfish and is usually blue in color. There are also quite a few which are light pink. As they mature the light pink changes to a darker shade and the blue ones change to a purple shade.

Learn more about Jellyfish, different Jellyfish Species, general Jellyfish Information, Jellyfish Pets and Jellyfish Safety

Written by and Sudarsana Sinha.

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