Fluorescent stony coral

Numéro d’image : 12527729
Fluorescent stony coral
Stony coral fluorescing orange 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. Corals also harbour symbiotic algae which require light to photosynthesize and produce nutrients. 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 Red Sea, Egypt.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 3966 px × 2644 px
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Property Release : Non requis
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