Common jellyfish

Common jellyfish

 

Scientific name : Aurelia aurita

 

Family : Ulmaridae
Size : Up to 40 cm diameter
Distribution : In all oceans and open seas except at the poles

 

Biology : It moves by regularly undulating and using marine currents. It captures very small zooplankton prey (fish larvae, micro crustaceans,…) using its tentacles which are equipped with stinging cells (cnidocytes).
The food is then directed towards the mouth which is located in the centre of the ventral surface; this orifice also serves as an anus as in all cnidarians (corals,…). This jellyfish species has the particularity of having two modes of sexual and asexual reproduction.