Big bottom animals and the impact: A reviews staff pool along the cutting surface and count the number of large bottom animals and the impact on the reef each 20 m, range of observation 100m2 (20 m x 5 m). A total of 4 data segment was recorded on the side cut 100 m. The only objective reviews contains: shrimp, spiny black bridge, pencil Urchin, sea cucumbers, starfish, clams gourami, nhum skull, snails, Moon snails, mai, snails, lobsters, jail and anchor coral scratching pour due to anchor, bleaching, stain, mesh, rubbish. Reef status is assessed on a scale of live coral coverage under 5 levels: very bad (1-10%), the bad (10-30%), medium (30-50%), good (51-75%) and good (76-100%).
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