◦why are coral communities/reefs important – include what are they indicators of?
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◦what efforts are taking place world-wide to protect coral reefs from further harm?

Coral reefs are important mostly because they provide protection and shelter for many different species of fish. and 
1) No access zones 
2) Implementation of regulations prohibiting collection of coral reef components 
3) Isolating coral reefs to preserve select species  

The mention of coral reefs generally brings to mind warm climates, colorful fishes and clear waters. Hope that helps