Coral Reefs

◆Coral reefs are large underwater structures composed of the skeletons of colonial marine invertebrates called coral

◆corals have a symbiotic relationship with an algae called the zooxanthellae

◆Known as the rainforests of the sea" for their biodiversity,

◆FAVOURABLE CONDITIONS FOR FORMATION OF CORAL REEF:

 

1.Warm tropical oceans with minimum temperature of 20 degree (30 degree north and 25 degree south latitudes) 

2.Oceanic water free of sedimentation; 

3.Transparent parts of ocean bodies;  

4.Relatively low salinity ocean bodies