ARTIFICIAL CORAL REEFS
reefs support biodiversity
conservation, marine tourism, and act as storm barriers.
Creating artificial reefs can protect sensitive areas of
reef, and reefs can be custom designed to
suit divers, fishers, and rare coral conservation.
The construction and testing of
artificial coral reefs provides employment and technical training, scientific and
general tourism, and the chance to develop
Well designed artificial coral reefs,
with a variety of high quality habitats in a small area, can provide
a wider visual and educational experience than degraded natural
As coral reefs decline providing
quality artificial coral reefs should prove a growth industry with global
“The aim of the organisation is to assist nature to improve
fish stocks, marine biodiversity and replace reef loss as well as create a diverse fish habitat
which fishermen and scuba divers can enjoy. Along the way the association wants its members to
enjoy being a part of this challenging project for the community...”
Left: A "Mineral Accretion
Artificial Coral Reef" MAACR. These reefs can be made in any form
enabling a combination of flexible design,
ease of construction, a high diving
and fishing tourism potential, and the provision of the sustainable
management of coral reefs. This image
is of recently constructed MAACR on the Australian Barrier
MAACR'S increase the quality and
productivity of our marine environment.
The first artificial habitats for coral were made
incidentally, they include concrete structures such as sea-walls and pylons, metal
structures, and even sunken ships.
The first artificial reefs made to provide
concentrations of catachable fish were similarly constructed of concrete
or steel, mainly in the from of reinforced cement.
"The success of the artificial reef project demonstrates how the efforts of a
few people can increase the quality and productivity of
our marine environment."
"Mineral Accretion Artificial Coral Reefs"
first published in 1996 makes artificial coral reefs using metal frames and solar
electricity. Mineral accretion uses electricity to “grow” limestone rock on artificial
reef frames and increase growth rates of corals and other reef organisms. It can build up to 20 cm (8 inches) of limestone in three
Solar panels are used to power two electrodes
supplied with a low-voltage current that is harmless to divers. The negative electrode is
attached to the reef frame and the positive electrode to a piece of mesh. Reaction of
the electricity with seawater then forms the limestone over the
These artificial coral reefs can be designed in
any shape and size to make the best habitat for fish, break down wave action, provide habitat
for coral, and designed diving sites for tourism.
Well designed artificial
reefs have proved very successful with both natural and artificial coral
colonisation and are very
wave resistant. The reefs can be used specifically to conserve threatened