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Aurelia (A Jellyfish)- An Overview

Aurelia is commonly referred to as jellyfish because it is made of a jelly-like substance. A jellyfish is not true fish which is a vertebrate animal with a backbone. It belongs to the class Scyphozoa of phylum Coelenterata. The most common scyphozoan jellyfish is Aurelia aurita (popularly known as moon jelly). It represents the dominant medusoid stage.

Systematic Position

Phylum: Coelenterata

Class: Scyphozoa

Order: Semaeostomae

Family: Ulmaridae

Genus: Aurelia

Species: aurita

Aurelia- A Jellyfish

Habit and Habitat of Aurelia (Jellyfish)

  • It is cosmopolitan jellyfish occurring in warm and temperate seas ranging in temperature from 6-19ºc all over the world.

  • It lives in coastal waters singly or in large shoals.

  • It can live in waters with a salt content as low as 0.6%. Salt content and water temperature affect the shape, size, and reproductive strategies.

  • They thrive best in waters with temperatures are above 17.5°C and salinity greater than 38.0%, largest.

  • It ranges in depth between the epipelagic zone and the mesopelagic zone (200 to 1,000 m).

  • It is found either floating with water currents or waves or swimming feebly by the contraction movements of its bell.

  • It is carni­vorous, feeds on small organisms with the help of its long oral arms.

  • It responds to various stimuli and is most active in diffuse light.

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Aurelia (A Jellyfish)- An Overview

Aurelia is commonly referred to as jellyfish because it is made of a jelly-like substance. A jellyfish is not true fish which is a vertebrate animal with a backbone. It belongs to the class Scyphozoa of phylum Coelenterata. The most common scyphozoan jellyfish is Aurelia aurita (popularly known as moon jelly). It represents the dominant medusoid stage.

Systematic Position

Phylum: Coelenterata

Class: Scyphozoa

Order: Semaeostomae

Family: Ulmaridae

Genus: Aurelia

Species: aurita

Aurelia- A Jellyfish

Habit and Habitat of Aurelia (Jellyfish)

  • It is cosmopolitan jellyfish occurring in warm and temperate seas ranging in temperature from 6-19ºc all over the world.

  • It lives in coastal waters singly or in large shoals.

  • It can live in waters with a salt content as low as 0.6%. Salt content and water temperature affect the shape, size, and reproductive strategies.

  • They thrive best in waters with temperatures are above 17.5°C and salinity greater than 38.0%, largest.

  • It ranges in depth between the epipelagic zone and the mesopelagic zone (200 to 1,000 m).

  • It is found either floating with water currents or waves or swimming feebly by the contraction movements of its bell.

  • It is carni­vorous, feeds on small organisms with the help of its long oral arms.

  • It responds to various stimuli and is most active in diffuse light.