Bangka Island is well known as the worldââ¬â¢s largest tin producer. The inland and offshore tin mining hasàprofound effects on the coastal environment, resulting in the high sedimentation in the water. Many corals sufferedàphysiological damage due to low light intensity. The distribution of stony corals and the status of coral reefs wasàsurveyed at 6 sites in West Bangka waters in October 2012. A total of 72 species of corals belonging to 33 generaàand 12 families were found, and 4 species were distributed at all research sites. The live coral coverage was 36% on average and was categorized as being in fair condition. The coverage was 0% at Kamboja Island where the coralsàwere the most affected by tin mining. The sediment flowed out from tin mining, blocked the light, and settled onàthe coralsââ¬â¢ surface. Consequently, many corals were buried and the live corals decreased. It is obviously necessaryàto reduce and control the tin mining.
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