The planula is a free-swimming larval stage in the lifecycles of most jellyfish species. The planula swims with the aid of numerous cilia covering its surface.
planula swims to move and find it's prey
The life cycle of a jellyfish is planula - polyp - polyp budding - ephyra - medusa.
A newly born jellyfish is called a "planula." After fertilization, the planula larva develops from the fertilized egg and eventually settles on a surface, where it transforms into a polyp stage. The polyp then undergoes a process called strobilation, producing juvenile jellyfish known as ephyrae, which mature into adult jellyfish.
An immature jellyfish is called ephyra.From the egg of a jellyfish, hatches a larva called planula.
Platypus Plankton Planula (a jellyfish)
The jellyfish life cycle is; planula larva, polyp, budding polyp, ephyra, medusa
# jellyfish (medusoid, adult) # planula(hatchling) # polyp (polypoid) # strobila (polypoid) # ephyra (medusoid, immature) Not all jellyfishes have a polypoid stadium.
Jellyfish reproduction involves several different stages. In the adult, or medusa, stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula. In this larval stage of jellyfish life, the planula hooks on to the bottom of a smooth rock or other structure and grows into another stage of jellyfish life, the polyp--which resembles a miniature sea anemone. During this stage, which can last for several months or years, asexual reproduction occurs. The polyps clone themselves and bud, or strobilate, into another stage of jellyfish life, called ephyra. It is this form that grows into the adult medusa jellyfish.
A fertilized egg in a jellyfish develops into a planula. These free swimming larvae are ciliated and shaped like small flattened pears.
it is called a planula. it is a free-swimmer
it is called a planula. it is a free-swimmer
Planula larva,polyp,strobila,medua-mobile phase