غايتنا - Kuwait Oil Company

Reefs are fragile and susceptible to small changes in outsideconditions such as temperature (between 20-28 C), oxygenlevels and food mixture, etc. The coral reefs are under siege:numerous threats to their existence can be attributed directlyor indirectly to human interference such as excessive coastaldevelopment, destructive fishing practices and widespreadland-based as well as marine-based pollution.By providing food and shelter, coral reefs are the ideal habitatfor a large variety of organisms with their overwhelmingrange of colors, forms and shapes. The spectacular abundanceof creatures that live in the reef’s intricate ecosystem includefungi, mollusks, sea worms, crustaceans and sponges that boreinto coral skeletons as well as oysters, clams, sea urchins,jellyfish, sea anemones and turtles to name a few.The Colony In ShortUnderwater marine colonies consist of different designs, shapesand sizes of reef balls which are made of treated concrete andother associated (harmless) materials. They interact with themarine environment creating an artificial marine habitat.• Total number 1,000• Each reef ball weighs 800–1,000 kilograms• Constructed of environmentally-friendly concrete. Alkalinity6