Sea anemone fluorescing underwater

Numéro d’image : 12527712
Sea anemone fluorescing underwater
Sea anemone fluorescing underwater, photographed at night using blue coloured flashlight and a yellow filter. Blue light excites pigments within some underwater organisms causing them to emit a fluorescent glow. This sea anemone glows green and red, and surrounding algae glow red. The sea anemone harbours symbiotic algae which require light to photosynthesize, producing nutrients which sustain it. It is thought that in shallower waters, the fluorescent pigments in such organisms act as a sunscreen that prevents too much ultraviolet light damaging the algae. In deeper waters and lower light levels, it is thought that the fluorescent pigments absorb ultraviolet light and emit it at a wavelength which promotes photosynthesis in the algae. Photographed in the Mediterranean Sea.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 3739 px × 2804 px
Model Release : Non requis
Property Release : Non requis
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