蓝色星球（2001）

The Blue Planet S01E02

Part 5 April 30, 2021, 1:21 p.m.

ln fact, the lapping edge was created by a thick soup of salty brine
这个湖其实是由一层厚厚的盐水所形成
far heavier than the surrounding seawater
比重比周围的海水重许多
and the sand was made up of hundreds of thousands of mussels.
岸边的沙则是无数的贻贝
Once again, in the midst of a totally barren seabed
这里也是，在一片荒凉的海底
an extraordinarily rich oasis of life
一座孕育丰富生命的神奇绿洲
totally independent of the sun's energy.
完全不依赖太阳能
The source of energy this time was not sulphides
这里的能量来源不是硫
but methane bubbling out of the sea bed.
而是从海床上升起的甲烷
And once again, the mussels carried
这里的贻贝也带有特殊的菌种
special bacteria capable of fixing the methane's energy.
可以转化甲烷制♥造♥能源
Just like the hot vents
与海底烟囱一样
a complete ecosystem had developed, based on the bacteria.
这也是个建筑在细菌之上的完整生态系统
There was an enormous variety of completely new species,
这里有许多新物种
shrimps, weird squat lobsters and bright red polychaete worms.
虾子，奇怪的短龙虾还有鲜红色的多毛虫
These oases were called cold seeps
人称这些绿洲叫冷水坑
and were surprisingly similar to the hot vents.
与海底烟囱有惊人的相似之处
The geological processes in the sea floor
会在海床造成
that produce methane also tend to result
甲烷的地质变化
in the release of hydrogen sulphides.
也会造成硫化氢的释放
lt was hardly surprising then
所以科学家在盐水湖附近
when not far from the brine pool they found tube worms ...
会发现管虫实在不足为奇
... extensive fields of tube worms
管虫聚集成广大一片
that stretch for hundreds of metres.
绵延数百公尺
This new species also uses bacteria
这个新品种身上也有细菌
to fix energy from sulphides
会利用硫来转化出能源
but it extracts them directly from the ground.
但它们会直接从地面撷取硫
Their beautiful gills are only used to supply oxygen to the bacteria.
它们美丽的鳃只有供给细菌氧气的功用
Amazingly, these tube worms are over two hundred years old.
但惊人的是这些管虫已经超过两百岁了
While hot vent tube worms are thought to be
有人认为海底烟囱的管虫是
the fastest growing invertebrates in the sea
海洋中长的最快的无脊椎动物
these appear to be far slower.
而这些管虫却长得奇慢
All the more reason to protect your gills from biting amphipods.
所以更应该保护自己的鳃不受排骨虾的侵扰
The energy sources exploited by the hot vent animals may suddenly fail
海底烟囱可能突然熄灭赖以维生的生物可能顿失所依
but here life can enjoy a more stable geological future.
在这里生物的远景则较有保障
To discover within ten years
能在10年间发现两个完全
two completely new ecosystems, both totally independent of the sun's energy
不依赖阳光的新生态系统
has been quite extraordinary.
实在是不可思议
So far, we have explored just one per cent of the deep ocean floor.
直到现在为止我们只探索过深海床不到1%的部分
Who knows what is still out there to be discovered?
谁又知道还有什么不为人知的事物在等待我们去发掘呢？