[permaculture] biorock grows coral reefs fast

Keith Johnson keithdj at mindspring.com
Mon Dec 17 00:27:51 EST 2007


The Biorock^® 
<http://www.globalcoral.org/Solution%20for%20Corals%20in%20Peril.htm> 
Process Accelerates Coral Growth

In pilot installations in Mexico, Panama, Indonesia, Maldives, Thailand, 
and Papua New Guinea, we have built artificial reefs where corals grow 
rapidly even in stressed environments.

 

Applying a low voltage electrical current (completely safe for swimmers 
and marine life) to a submerged conductive structure causes dissolved 
mineral crystals in seawater to precipitate and adhere to that 
structure. The result is a composite of limestone and brucite with 
mechanical strength similar to concrete. Derived from seawater, this 
material is similar to the composition of natural coral reefs and 
tropical sand beaches.

 

Biorock structures can be built in any size or shape depending only on 
the physical makeup of the sea bottom, wave and current energies and 
construction materials. They are well suited for remote, third world 
sites where exotic building materials, construction equipment and highly 
skilled labor are non-existent.

 

GCRA methods provide a cost-effective way to increase coral survival 
from bleaching and disease, while restoring damaged reefs. In time, 
these structures cement themselves to the ocean bottom, providing a 
physical barrier that can protect coastlines from waves and currents 
that cause erosion.

-- 
Keith Johnson
"Be fruitful and mulch apply."
Permaculture Activist Magazine
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also Bloomington Permaculture Guild 




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