2009-12-25

The hidden fluorescent colours of the oceans(1)

Normally hidden to the human eye, the marine life in these pictures are all shown to be emitting fluorescent colours. Underwater photographer Louise Murray perfected the technique for shooting fluorescing marine life and travelled to Thailand and the Red Sea to take these images.
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When illuminated with special torches shining a 'blue' light, many organisms under the sea suddenly burst into radiant life.
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Fluorescent colours are produced by cells responding to certain wavelengths of light hitting them - causing the cell to emit its own light on a different wavelength, which creates a different colour.
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Coral and hermit crab fluorescing under blue light in Thailand.
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Traffic cones and highlighter pens are just two everyday examples of fluorescing objects that humans can detect without any equipment. Above ground people can usually pick up other fluorescing objects using ultra violet lights...
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...but deep in the ocean it's blue light that brings out the livelier side of these animals
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