脆弱天堂 07

Some of these will be replanted on fresh discs

While others will be returned to the reef.

If replicated, coral gardening could help restore reefs throughout the Pacific.

But its biggest success may be in sowing the seeds of conservation

in the local fishermen.

Within days, these cuttings will have stuck themselves to the reef

While reefs that were replanted a year ago are already starting to bloom.

In a few more years, this area should be awash with fish.

So there's hope for coastal fisheries on which local people depend.

Out in the open ocean, it's another story.

There is no protection here

And yet this is where most fish are now being caught.

These may look like minnows

But they are tuna, each a healthy two kilos or more.

Four different species are fished in the tropical Pacific.

These are skipjack tuna, with some yellowfin tuna mixed in.

But this boat is not setting nets.

The ancient technique of fishing with rod

And line is now practised on an industrial scale.