And while mangrove health and sustainable seaweed farming are part of the overall story of coastal health, going off the coast, and out to the reef, the solution to a scarce fisheries resource is far more complex.

Yesterday we showed you part two of our in depth story into why fish is so "scarce" these days. Part three looks further at whether the reef can replenish itself, and what needs to be done to ensure this happens. Courtney Menzies has this story.

The entire 20 minute documentary will be aired after the news tonight.

This story was produced with support from Internews' Earth Journalism Network.

Tags Courtney Menzies