The island is encircled by a coral reef.

这个岛周围都是珊瑚礁。

An unspoiled coral reef encloses the bay.

未经破坏的珊瑚礁围绕着该海湾。

Although the coral looks hard, it is very delicate.

虽然那珊瑚看起来坚硬，它其实非常易碎。

These snails do not occur on low-lying coral islands.

这些蜗牛不会出现在低洼的珊瑚岛上。

The women have elaborate necklaces of turquoise and pink coral.

女士们拥有绿宝石和粉色珊瑚制成的精美项链。

Oil pollution could damage the fragile ecology of the coral reefs.

石油污染可能破坏珊瑚礁脆弱的生态环境。

In Bermuda, Sam's father took him on an excursion to a coral barrier.

在百慕大，萨姆的父亲带他去了一趟到珊瑚堤的短途旅行。

More than 1,000 shipwrecks litter the coral reef ringing the islands.

一千多艘遇难船只散布在环绕岛屿的珊瑚礁之中。

Oil spills are having a devastating effect on coral reefs in the ocean.

海上溢油对海洋里的珊瑚礁有着毁灭性影响。

All over the world, coral reefs are dying.

全世界的珊瑚礁都在消亡。

Overfishing can be seriously disruptive to coral.

过度捕捞会严重破坏珊瑚。

As you know, coral is very sensitive to water temperature.

你也知道，珊瑚对水温很敏感。

They eat algae and prevent it from overwhelming the coral.

它们以藻类为食，防止藻类压垮珊瑚。

Without the outbreak, the diversity of coral would be reduced.

如果没有这次爆发，珊瑚的多样性将会减少。

A sea urchin is nestled in a coral formation off Bonaire Island.

一只海胆正舒适地安定在博内尔岛外的珊瑚丛里。

This of course has beneficial results for the nearby coral reefs.

这当然对附近的珊瑚礁有益。

In my opinion, transplanting coral should only be used as a last resort.

在我看来，移植珊瑚只能作为最后的手段。

Now, in small numbers, the starfish don't affect coral reefs dramatically.

现在，海星数量很少，对珊瑚礁的影响也不大。

There are almost always pockets of coral on the reefs that remain unaffected.

珊瑚礁上几乎总有一些珊瑚没有受到影响。

I'm helping to do research on the coral and the fish that live around the reefs.

我正在帮助研究珊瑚和生活在珊瑚礁周围的鱼类。

The adult ones converge on remaining portions of healthy coral and feed hungrily.

成年珊瑚聚集在健康珊瑚的剩余部分上，饥饿地进食。

The reefs here are beautiful, but if the sea water is polluted, the coral will die.

这里的珊瑚礁是美丽的，但是如果海水被污染，珊瑚就会死亡。

A single Acanthaster can consume five to six square meters of coral polyps per year.

一只棘冠海星每年可以吃掉5到6平方米的珊瑚虫。

On a coral reef in the Bonin Islands, an abandoned wormhole is home to a hermit crab.

在小笠原群岛一个珊瑚礁上，一个废弃的虫洞是寄居蟹的家。

Coral larvae settle among the algae and eventually establish flourishing coral colonies.

珊瑚幼虫在藻类中定居，并最终形成繁盛的珊瑚群落。

In Suruga Bay, a strand of whip coral provides habitat for two shrimps, camouflaged among the polyps.

在骏河湾，一串鞭状珊瑚为藏在水螅中的两只虾提供了栖息地。

Coral reefs are one of the most fragile, biologically complex, and diverse marine ecosystems on Earth.

珊瑚礁是地球上最脆弱、生态性最复杂、最多样化的海洋生态系统之一。

Depleting the number of lobsters, for example, means that we are adding to the threat of coral decline.

例如，减少龙虾的数量意味着也增加了珊瑚群数量锐减的风险。

There's another technique that's been experimented with to try to help coral reefs recover from bleaching.

人们还尝试了另一种技术，试图帮助珊瑚礁从漂白状态中恢复。

Now, we've talked in depth about coral bleaching, or whitening, which as you recall, is a symptom of that the coral is suffering.

现在，我们已经深入讨论了珊瑚白化，或者说是变白，正如你所记下的，这是珊瑚患病的一种症状。