28.9.09

"New Artificial Reefs "Grow" From irregularly shaped modular building blocks"


http://news.nationalgeographic.com/news/2007/09/070925-mideast-reef.html

"Reviving the Reef
Using cranes and large parachutes, the team has already sunk huge concrete structures, each weighing 4.2 tons, into water 19 to 22 feet (6 to 7 meters) deep. Before installation, corals were nursed in special tubes designed to fit in holes drilled into the artificial reef. In September researchers aided by university students and Israeli schoolchildren glued the tubes across the surfaces of the irregularly shaped modular building blocks. About 250 of the coral-filled tubes have already been planted on the reef, and more are in the works."