Pelagia noctiluca is ajellyfish in the family Pelagiidae. It is typically known in English as the mauve stinger, but other common names are purple-striped jelly (causing potential confusion with chrysaora colorata), purple stinger, purple jellyfish, luminous jellyfish and night-light jellyfish. Pelagia noctiluca can be described as a marine organism with the ability to glow in the dark (bioluminescence). It is found worldwide in tropical and warm temperate seas.

Beadlet anemone - Actinia equina - is one of the most common species of anemone or actinia in the Mediterranean Sea. It lives in the intertidal zone. The intertidal zone, also known as the shoreline, is the area above the water level at low tide and underwater at high tide. Simply put it is the area within the tidal range. ...

We are in winter and in this video we see how the Green ball alga Codium bursa seems to thrive in the first meters of water compared to other species of algae and marine organisms. Despite the external temperature of about ...