向深海出发（2008）

Yeah, we're going to come off the banks, so we need to get down here
是啊 我们要上岸 就在这里下船吧
and drop the anchor overnight.
在这里下锚一个晚上
The future of the Atlantic is being shaped by man.
大西洋的未来是由人类掌管的
The effects of large-scale commercial fishing are damaging this mighty ocean.
大规模的商业捕鱼 正在毁坏这片大海
In the last decade, some fish stocks have fallen by 95%.
在过去十年中 有些鱼类数量下降了95%
one fish is particularly hard-hit... the shark.
其中鲨鱼最为悲惨
How many sharks do we catch every year?
人们每年抓多少条鲨鱼啊?
Who was it who said it? It must have been you, Philippe.
谁知道呢? 可能只有你知道吧 菲利普
Human beings catch between 70...
人类每年捕捉大概在
We estimate between 70 and 100 million sharks every year.
每年大概要七千万到一亿头
Million?
一亿?
Seventy to 100 million sharks a year.
每年大概要七千万到一亿头
Some sharks are caught for their fins, used in shark fin soup.
有的是要它们的鳍 用来做鱼翅汤的
But millions of sharks are by-catch,
更多鲨鱼是捕别的鱼时捕到的
caught unintentionally by big commercial fishing operations.
都是一些大型的商业捕鱼导致的
Sharks are so critical. I mean, they are the apex predator.
鲨鱼非常重要 它们是顶级掠食者
They help to weed out the sick and the diseased,
它们吃掉老弱病残
and make sure that the fisheries
这才能保证那些渔场
and the food chain beneath them is healthy and viable.
以及跟它们有关的 那些食物链是健康的
And when they remove sharks from, you know, that chain,
要是他们把鲨鱼抓光了 那个食物链
it has just disastrous effects on the entire ecosystem.
就会有困难了 这会影响到整个生物系统
So the team is going to dive with sharks
所以探险队要跟着鲨鱼一起下潜
to investigate a pioneering technique,
来调查一项前沿技术
a shark-repellent that could help protect these vital creatures.
鲨鱼驱逐物可以用来保护 这些重要的生物
It's coming up slowly, it's a small one.
慢慢过来了 是个小的
Philippe and Tooni are going to team up with scientists
菲利普和托尼要加入一队
from the shark lab at the Bimini Biological Field Station.
来自比米尼生物学基地 那些鲨鱼实验室的科学家
For the last 25 years, they've been monitoring the population here,
在过去25年中 他们都一直在检测这里的鲨鱼数量
catching and then releasing the sharks once they've collected their data.
抓捕后释放鲨鱼 这样收集相关数据
There is a shark caught on one of the hooks.
一条鲨鱼上钩了
I mean, it's giving a good thrash in the water,
正在水里扑腾
so it's still alive and obviously fine.
还活着 很好
To track the diminishing population,
为了研究这个正在减少的种群
they need to attach an identity tag to this shark.
他们需要给鲨鱼加上标牌
Philippe is going to monitor the process underwater.
菲利普要在水下跟踪这一过程
We've got to be very, very careful. It's going to be an upset shark,
我们要相常的小心 这是一头很生气的鲨鱼
and it's happened before that they can break free from a line,
以前就有过鲨鱼挣脱的事件
so we're going to give it a lot of space,
所以我们给它足够的空间
a lot of berth and a lot of respect.
对它要足够友善 要尊重它
Looks like a tiger shark. That is a tiger shark all right.
看来像是虎鲨 的确是虎鲨
Tiger sharks are known to be one of the more dangerous sharks in the world.
虎鲨很有名 是最危险的鲨鱼之一
I normally would never get this close to a tiger shark.
我一般不会离虎鲨这么近
Whoa! That was a close call there.
哇 好悬呀
That's why you've got to be really careful.
这就是为什么你要小心的原因了
So we're doing a data tag basically.
我们只是在加数据标签
As sharks become more threatened,
因为鲨鱼日益受到威胁
tags can help identify when and where they are being fished.
通过这些标签可以知道 它们是在什么时候和地方被捕获的
Do I push it in?
我要推进去吗?
Have you got it in? Pull it out, pull the wood out.
进去了吗?把木头拔出去
There you go. And the tag stays in, you see?
好了 标签留在上面了 明白了吗?
This shark has been caught deliberately for research,
这鲨鱼是因为研究需要 被有意抓获的
but commercial fisheries catch countless sharks unintentionally.
但是我们的商业捕鱼 无意间会抓到无数鲨鱼
Long lines are set up by commercial fishermen,
商业捕鱼者放下很长的鱼线
miles and miles and miles long, with thousands of hooks laid along them.
有数英里长 上面有数千鱼钩
Sharks are often left for a long period on those lines and they die.
鲨鱼经常被挂在上面很长时间 最后因此死去
She wanted to give me a little goodbye present.
离开前还想给我点儿小礼物
And off she goes. She looks good.
它走了 看起来还不错
Millions of these predators are caught on commercial lines.
数百万记的掠食者被这样捕获
So the hunt is on for an effective way
所以人们在寻找有效的方法
of preventing sharks from getting trapped on them.
来防止鲨鱼被困在鱼线上
Paul and Lucy have joined scientists
保罗和露西跟那些科学家一起
who've developed a material they believe will repel sharks.
他们发明了一种东西 他们认为这可以驱逐鲨鱼
This is the very stuff right here. It's an alloy, a mixture of metals.
就是这些 是一种金属混合合金
The hope is that hooks made of the repelling metal
希望驱鲨合金做的鱼钩
could be used on long-line fishing hooks,
可以用做长线鱼钩
so fewer sharks end up as by-catch.
这样就不会有 那么多鲨鱼无辜被困了
The metal is electropositive.
这个金属是阳性的
It produces a charge that's conducted by salty water.
可以产生电并通过咸水传导
Well done. Okay, let him settle down a bit.
干得好 好 让它安定一下
So I'll grab him, okay?
所以我抓着它 对吧?
Lucy and Paul are going to test the metal
露西和保罗要测试这个金属
on a juvenile lemon shark.
就用这头幼年柠檬鲨
Lucy has been shown a handling technique to help the experiment,
有人教过露西 怎样能更顺利地进行实验
putting the shark in a coma-like state.
让鲨鱼处于半睡状态
I'm going to try and basically turn him on his back,
我要把它翻过来
so we've got to try and move him over, or her, I don't know.
所以我们要试着去把它翻过来 我不知道
Be ready for her, steady as you go.
准备好 稳一点
Well done.
干得好
When the tail becomes immobile...
当它尾巴不动时
Then she's out. When she's not moving at all.
她就晕了一样 她完全不动了
Okay, so she's totally out of it at the moment.
现在她完全昏睡过去了
In this state the shark is very unresponsive.
在这种状况下 鲨鱼是没有什么反应的
Paul is going to bring a small piece of the metal close to its head.
保罗要把一块小小的金属 放到它的脑袋附近
Are you ready, Lucy? Yeah.
准备好了吗 露西? 好了
Time to see if the shark will react to the metal.
是时候看看鲨鱼 对金属有什么反应了
Holy smoke!
哦 我的天哪
Okay.
好
Okay, it works.
好 管用
I think that's definitely a conclusive experiment.
我想实验是有结论意义的
So it works.
起作用了
Even in a comatose state,
即使是在昏睡状态
the shark sensed the metal and was repelled by it.
鲨鱼对金属还是敏感的 非常排斥
So if you've got a set of great fish hooks made out of this stuff,
要是捕鱼的钩子用这样的东西
you can do selective fishing.
那就可以有选择性的抓捕了
You're going to get more of what you do want to catch
你多捕获自己想要的
and less, or hopefully none, of what you don't want to catch.
少抓甚至不抓不想抓的
The expedition is coming to a close,
探险要结束了
but there's one final shark mission for Tooni and Philippe.
但是对托尼和菲利普来说 还有最后一个有关鲨鱼的任务
Chum, a mixture of mashed-up dead fish, has been spread in the water.
一些碎鱼被洒在海里
It's attracted blacktip and Caribbean reef sharks.
好吸引了黑边鳍真鲨 和加勒比海乌翅真鲨
Oh, we've got sharks. There are some sharks out here.
我们看到鲨鱼了 那儿有几头鲨鱼
We can see their fin tips just going around the water.
可以看到它们露出水面的鳍
They're going to test another shark repellent,
他们要测试另一种驱鲨物品
a liquid that could be attached in time-release pouches to long lines.
这种液体可以放到长鱼线上 定时释放的袋子里
To make the conditions for the experiment authentic,
为了让实验条件真实
it's got to be carried out in open water teeming with adult sharks.
这得被释放到 成年鲨鱼成群的开放水域里
Philippe and Tooni will dive in amongst the sharks
菲利普和托尼 会跟很多的鲨鱼一起潜水
and release the repellent by hand.
亲手释放那些东西
There are some big sharks down there actually.
那儿有几头大鲨鱼
They're a good couple of metres,
都有两米多长
which I don't think I was quite expecting.
这不是我期待的
I was expecting slightly smaller sharks to be perfectly honest.
老实说 我想会遇到 个头儿小点的鲨鱼
Caribbean reef and blacktip aren't the most aggressive of sharks,
黑边鳍真鲨和乌翅真鲨 攻击性不是最强
but the chumming has attracted quite a few.
但是那些碎鱼吸引了很多鲨鱼过来
One, two, three, four, five, six...
1 2 3 4 5 6…
And the small one at the back is seven.
后面小一点的是第七个
That's bizarre. That makes my heart go a bit funny.
这挺奇怪 我的心脏有点怪怪的
It's quite a bizarre sensation to be sitting on the side of a boat
坐在船舷上感觉真的有点怪
about to drop backwards into a pool teeming with sharks.
往后一倒就要跟鲨鱼群一起了
Safety divers and first-abiders are standing by.
安保潜水员和急救员 也就在旁边待命
Oh, oh, my goodness!
哦 我的天哪
Sharks everywhere, all around us.
到处都是 好多鲨鱼就在我们旁边
This is just incredible.
真是难以想像
Oh, God, it's having a good look at me.
天哪 它正看看我呢
Whoa! That was close.
哇 好近呀
Close! That was close!
很近 的确很近
Shark chaos!
鲨鱼 很混乱
More and more sharks are gathering.
越来越多的鲨鱼围了过来
This should be the stuff that really scares them off.
这应该是能吓跑它们的东西
It is essentially distilled tissue from sharks, from dead sharks.
这些都是从死去的鲨鱼 身上蒸馏得来的