The parrotfish that remain live in much smaller communities.

幸存的鹦鹉鱼只得生活在更小的群落里。

This is where parrotfish come in.

这就是鹦鹉鱼上场的时刻了。

You hear the sound of the parrotfish, like the noise of the waves.

你可以听到鹦鹉鱼的声音，就像海浪似的。

Can you guess what parrotfish and beaches have to do with each other?

你能猜到鹦嘴鱼和沙滩有何必然的干系吗？

There is nobody talking. You hear the sound of the parrotfish, like the noise of the waves.

你在水下。没有人说话。你听到鹦嘴鱼的声音，就像海浪的声音。

Eating rocks is just one way parrotfish help manage seaweed.

吃石头只是鹦鹉鱼打理海藻的一种方式。

But unlike their neighbors, parrotfish can completely remove even the tiniest scraps of seaweed from the ocean floor.

但它和它邻居不一样的是，鹦鹉鱼能够从海床上完全移除海藻，甚至是其最小的残渣。

Through a dynamic system of social networks, parrotfish can convey information to other coral-dwelling fish.

通过一个动态社交网，鹦鹉鱼能向其他珊瑚居民传递信息。

Then the parrotfish has to get rid of all of the crushed limestone—and there's only one way to do that.

然后鹦嘴鱼要处理掉所有碎的石灰石，而它们只有一种处理方式。

The lionfish's menu includes herbivores that eat algae, like parrotfish or surgeonfish.

狮子鱼的食物包括以藻类为食的食草动物，例如鹦嘴鱼和刺尾鱼。

Hundreds of butterflyfish, parrotfish, and seahorses darted around her.

数百条蝴蝶鱼、鹦嘴鱼和海马在她周围游来游去。

Now that groupers and snappers are woefully overfished, fishermen are targeting parrotfish.

现在石斑鱼和鲷鱼被严重过度捕捞，渔民们开始瞄准鹦嘴鱼。

Named for their vibrant scales and beak-like teeth, these parrotfish are devouring a particularly crunchy breakfast: rocks.

以他们鲜明的鳞片与喙状齿闻名，这群鹦鹉鱼在忙着吃一种特别脆的早餐：石头。

In many coral reefs, overfishing has reduced the number of parrotfish, as well as other seaweed eaters, such as surgeonfish and rabbitfish.

很多珊瑚礁中，过度捕捞减少了鹦鹉鱼的数量，以及其他吃海藻的鱼，例如，刺尾鱼和蓝子鱼。

(Laughter) So this is a confession of my love for parrotfish in all their flamboyant, algae-eating, sand-pooping, sex-changing glory.

（笑声） 所以这是我对鹦嘴鱼的爱的表白，因为它们华丽、吃藻类、排沙、改变性别的荣耀。

And parrotfish exemplify some of the beauty of diverse reproductive strategies.

鹦嘴鱼体现了多种繁殖策略的一些优点。

Fortunately, continued research into reef species like the quirky and critical parrotfish can inform new strategies for preserving these essential ecosystems.

幸运的是，对珊瑚礁物种（如古怪而关键的鹦嘴鱼）的持续研究可以为保护这些重要生态系统的新策略提供信息。

[Jo] Yeah, it sounds kind of slimy; not something I want to sleep in. But parrotfish like it really well.

但是鹦嘴鱼真的很喜欢它。

Because I don't know how to give an honest talk about my beloved parrotfish and coral reefs that has a happy ending.

因为我不知道如何诚实地谈论我心爱的鹦嘴鱼和珊瑚礁的美好结局。

But in parrotfish, for example, or any sex changer, targeting the biggest fish means that they're taking out all the males.

但是在鹦嘴鱼中， 例如，或者任何变性者，以最大的鱼为目标意味着他们要消灭所有的雄性。