The great barrier reef is the world's largest network of coral structures.

大堡礁是世界最大的珊瑚礁群。

Like coral reefs, they are a nursery for the oceans.

像珊瑚礁一样它们是海洋的托儿所。

This is our experiment site where we deployed about 130 reef tiles.

这就是我们的实验地点，在这里，我们布置了130块礁石。

Coral reefs are already appreciated for their beauty.

珊瑚礁绚丽的外表已备受赞赏。

The reefs and rough waters made it difficult for ship captains.

珊瑚礁的海水使船长难以驾驭。

But when reefs are bleached or damaged, the fish flee, and the reef suffers.

但当珊瑚礁白化或受损后，鱼群逃走，礁石也遭受破坏。

Unfortunately, the coral reef ecosystem is a fragile one.

不幸的是，珊瑚礁是一种脆弱的生态系统。

The manta rays include one species that lives near reefs and another that's migratory.

鲼是包括在其中生活在礁附近的一个物种, 而另一种则有迁居习惯。

Far better, some say, to turn old rigs into coral reefs.

若要全面考虑的话，有些人认为应该把老的钻塔转换成珊瑚礁。

Both offer stunning views of tropical waters dotted with colourful fish and coral reefs.

这两地都可以欣赏到热带水域的壮丽景色，那里点缀着五颜六色的鱼类珊瑚礁。

He used to go fishing on the reef.

他也常常到礁石上去钓鱼。

Are they all appliance brands, names of galaxies, special ops forces, or oceanic reefs?

他们都是电器品牌，星系名称，特种部队，或大洋礁？

Next, we're talking about coral, Carl? No, coral, specifically coral reefs.

接下来，我们来谈谈珊瑚吧。我的名字Carl？当然不是，是珊瑚，具体来说是珊瑚礁。

They can hear the sounds of healthy reefs.

它们可以听到健康珊瑚礁的声音。

Almost everything we know about coral reefs comes from the top 30 meters or so.

我们对珊瑚礁的几乎所有了解都来自水下30米左右的地方。

But beyond our reef, a great danger is coming!

但在暗礁那端，可怕的危机即将来临。

We now know that because of that effort, our reefs are more resilient.

我们现在知道，由于这些努力，我们的珊瑚礁更有适应力。

The reef is located in what's called an oceanic twilight zone.

此珊瑚礁位于所谓的海洋曙光区。

Beaches that have been mined to become barren pits, reefs and fish populations are killed.

被开采的海滩变成了贫瘠的坑，珊瑚礁鱼类种群都被杀死了。

The surfers are happy they saved the reef.

冲浪者们很高兴他们拯救了珊瑚礁。