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Selasa, 06 September 2011

Coral Reefs


                                                                          Coral Reefs
 
Coral reefs are a bunch of coral animals is a type of plant symbiosis with algae called zooxanhellae.
Strangely shaped coral animal, resembling a stone and has a color and shape of various arts. These animals can be called polyps, are the main reef-forming animals that produce calcium. Polyps takes time for thousands of years to form reefs.


Zooxanthellae are a type of symbiotic algae in coral tissue. These zooxanthellae perform photosynthesis produces oxygen that is useful for the life of marine animals who live or lived in the reef
On the other hand, the animals who live inside the corals provide shelter for the zooxanthellae.

    In coral reef ecosystems there are two types of coral, hard corals and soft corals. Coral stone is a kind of hard corals that are caused by the presence of many of the lime produced by the coral animals. Through a very long process, a small coral animals (polyps) to form a viscous kolobi reef, which actually consists of thousands of individual polyps. Coral stone is a major shaper of coral reef ecosystems. Although it looks very strong and sturdy, the coral is a fragile, easily destroyed and very vulnerable to environmental changes. If the rate of coral reef damage is not declining, it is forecast in the decades to come about 70% world's coral reefs will be destroyed. Sea water temperatures rise by 1 to 2C can cause coral reefs become stressed and eliminates organisms called zooxanthellae miskroskopis which is a dye and a provider network of nutrient-nutrient basis. If zooxanthellae do not return, the coral will die.

   

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