Coral Reef Restoration Projects
Biorock structures, Pemuteran, Bali, Indonesia. In the foreground is a wire mesh anode, whilst in the background are the cathodes on which the corals grow.
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The Biorock process was developed by Thomas Goreau and Wolf Hilbertz in the 1970's. Electricity is used to promote the deposition of calcium carbonate, and to a lesser extent magnesium hydroxide, which build up on the surface of the cathode. Hard corals quickly bond to this material and the process is thought to accelerate coral growth by up to four times. The resulting 'reef' of hard coral soon attracts other inhabitants. Biorock structures - metal frames connected to an electrical...more »
© Matthew Oldfield 2009