大西洋：地球最狂野的海洋（2015）

to the edge of the frozen Arctic Ocean.
在冰盖的边缘地带 一种奇怪的现象在此发生 把洋流引向这里
At the edge of the ice, a strange process
takes place that draws the current up here.
当海水冻结时 会析出盐分
As the sea water freezes,
it squeezes out its salt
使得周围未冻结的海水内含盐量急剧增加
making the unfrozen water around it
extremely saline.
这种含盐量超高的海水较重 会沉向海底
This super salty water is heavier,
so it sinks towards the seabed
而来自湾流的较暖海水会被吸入 取代其位置 从而形成环流
setting up a circulation as the warmer water from
the Gulf Stream is sucked in to replace it.
在北极的其他区域 海水都会在冬季结冰
Everywhere else in the Arctic,
the sea freezes over in winter.
但在这里 来自湾流的热量
But here, the Gulf Stream's warmth
确保了北大西洋这片广阔的海域全年不会结冰
keeps a vast expanse of the North Atlantic
ice-free, all year round.
丰富的营养与不结冰的海水相结合
This combination of
nutrient rich water and unfrozen sea
为世界上最壮观的野生动物景观创造了舞台
creates the arena for one of the Earth's
great wildlife spectacles.
正值一月 十亿余条鲱鱼聚集在挪威♥海♥岸产卵
It's January and over a billion herring have gathered
to spawn off the coast of Norway.
对于能来到这里的捕食者们 这无疑是场盛宴
It's a feast for any predator that can reach it.
对于座头鲸而言
For the humpback whales,
it's a reward
这是对它们穿越大西洋五千英里长途跋涉的奖赏
for their five thousand mile swim
across the Atlantic.
座头鲸在冬季时无法前往北极大部分地区
Humpbacks can't get to
most of the Arctic in Winter.
它们不能在冰面下游动 因为它们需要呼吸
They can't travel beneath the ice,
because they need to breathe.
湾流在这里开辟了一处富饶的猎场
Here, the Gulf Stream has opened up
a rich hunting grounds
尽管捕鱼并不容易
but catching the fish isn't easy.
鲸鱼群奋力用气泡网包围住这一大群鱼
The whales struggle to surround in bubble nets
such a huge mass of fish.
现在 座头鲸最致命的敌人也进入了战场
And now, the humpback's
deadliest enemy enters the fray.
数百头虎鲸以大约三十头为一组
Hundreds of orcas swim in
from the open ocean
从自♥由♥水域游到这里
moving in pods up to thirty strong.
但这些致命的猎手来此并非为了捕食座头鲸
But these deadly predators
aren't here to eat humpbacks
它们的目标是鱼群
they're after the fish.
并且它们有着一项超凡的捕猎技巧
And they have an extraordinary technique
for catching them.
首先 它们必须团队协作
First, they must work as a team
用独特的声音协调各位成员的行动
coordinating their movements
using clicks and whistles.
虎鲸的叫声
ORCAS CRY
它们把硕大的鱼群分隔为更易控制的小群
They break off a section of the mega shawl
into a more manageable ball.
一部分虎鲸围绕着鲱鱼群 把鱼群聚拢成一团
Some whales circle the herring,
herding them together.
另一部分则潜到鱼群下方 推动着鱼群浮向水面
while others swim deep and push
the ball of fish up towards the surface.
鲱鱼群在水中翻滚 绝望地想逃离自己的命运
The water boils with herring,
desperate to escape their fate.
现在 虎鲸将施展它们的重型武器
It's now the orcas
deploy their heavy weaponry.
一头六吨♥重的虎鲸挥打着它的尾巴 带来毁灭性的力量
A six ton orca slaps its tail
with awesome destructive power.
在水下 尾击能震晕鲱鱼群
Under the water,
tail slaps are used to stun the herring.
一些鲱鱼醒得很快 游回到鱼群的安全位置
Some fish come to quickly
and escape back to the safety of the shawl.
但大部分会被虎鲸逐一吞下
But most are picked off by the orcas,
one by one.
虎鲸有条不紊地消耗着鱼群
Soon, the water glitters with fish scales
很快 海面上泛起鱼鳞的闪光
as the orcas methodically
consume the ball of fish.
虎鲸把鲱鱼群分隔成更小的鱼群
By breaking up the herring
into a smaller shawl
也帮了座头鲸的忙
the orcas have done
the humpbacks a favour.
完全改变了两者间通常的关系
turning the usual relationship
between the animals on its head.
地球上其他海域 虎鲸都是座头鲸最大的敌人
Everywhere else on Earth,
orcas are the humpbacks' biggest enemy
但在这里 座头鲸却能坐享其成
but here, the humpbacks cash in
on the colossal fish supper.
这场虎鲸的派对中 座头鲸并非是唯一一位不请自来的客人
And the humpbacks aren't the only ones
to gate crash the orcas' party.
硕大的长须鲸 足有八十英尺长
Massive fin whales, eighty foot long
一口就能吞下三千条鲱鱼
can swallow three thousand herring
in a single gulp.
宿敌们摩肩擦踵 聚在一起进食
Deadly enemies feed side by side.
这种独特的景观只会在此发生 多亏了湾流带来的热量
A unique scene, only possible here,
because of the warmth of the Gulf Stream.
仅仅几周内 在鲱鱼群离开前
For just a few weeks,
the humpbacks will eat their fill
座头鲸就能填饱肚子
before the herring move on.
这是一处壮丽的奇观 然而它的未来却难以预料
It's a wonderful spectacle,
but its future is hard to predict.
气候正逐渐变暖 越来越多的淡水从格陵兰的冰帽上消融
As our climate warms,
more and more fresh water flows
流向大西洋
into the Atlantic from Greenland's icecaps.
使得海水含盐量降低
This makes the sea less salty.
已经有征兆显示 把暖流引向北部海域的
And there are signs
that the salinity driven circulation
盐度驱动循环或许正在减缓
which draws the warm current north
may be slowing down.
但目前 随着捕食季节的结束
For now,
at the end of the feeding season
鲸鱼又开始了它们向南返回加勒比海的漫漫长途
the whales begin their long journey south,
back to the Caribbean
它们的生命循环又将再一次开启
where the cycle of their lives
will begin again.
这些生命被湾流宏伟的力量塑造成型
Lives that are shaped
by the awesome power of the Gulf Stream
这种生命的驱动力
The driving force for life,
throughout the rich northern seas. . .
遍及富饶的北大西洋海域
. . .of the Atlantic.
正值一月 挪威安道尔尼斯镇
It's January in the Norwegian town of Åndalsnes
深入北极圈内
far above the Arctic Circle.
海岸边 自然界一处壮丽的奇观即将上演
Off shore, one of nature's
great spectacles is about to unfold
数百头鲸鱼聚集在此 共享盛宴
as hundreds of whales
gather to gorge themselves.
但当摄制组测试设备时
But as the camera team test their equipment
他们才意识到在这里拍摄有多困难
they realise just how hard
it's going to be to operate here.
导演露西·威尔斯尤其担心光照不足
Director Lucy Wells, is particularly
worried about the lack of light.
真正的拍摄时间 目前每天只有一小时
Actual filming time, we may get
an hour a day at the moment.
时间很短暂 而且很有可能结果会令人沮丧
Um. . . which isn't very much
and potentially could be quite frustrating
因为有很多需要拍摄 但环境太昏暗
because if there's lots going on,
but it's too dark
我们对此无能为力 什么也拍不到
there's nothing we can do,
we can't film anything.
另一项严峻的挑战就是寒冷
The other big challenge will be the cold.
温度远在冰点以下
With temperatures well below freezing
低温症和结冰的潜水设备成为了真正的危险
hypothermia and freezing scuba equipment
are very real dangers.
队员们特别渴望拍摄到虎鲸捕食的场景
The team are particularly keen
to film orcas feeding
在离开海岸一小时后 他们幸运地碰到了鲸群
and within an hour of leaving shore,
they get lucky and make first contact.
虎鲸群正把鲱鱼群驱赶成球形
The orcas are herding
a herring shawl into a ball
这正是摄制组想要的画面
exactly what the team were after.
哇
LUCY:
Wow.
凭借着仅一小时的阳光 队员们冲进了水里
With just an hour's daylight,
the crew rush to get in the water
下吧
MAN:
Go.
哇 它们到处都是
LUCY:
Wow, they're everywhere!
第一天 摄制组已经拍到了虎鲸的第一组画面
Day one, and already the team
have their first shots of the orcas.
很快 虎鲸就有客人上门了
And soon, the orcas have company.
这头座头鲸 靠近了 看它多近啊
Oh, there's a humpback just coming close.
Look how close he is!
两种鲸鱼 算是“买♥♥一赠一”了
Here, you get two whale species
for the price of one
并且看起来座头鲸正跟随着虎鲸
and it looks like the humpbacks
are following the orcas around
整个团队非常激动
The team are thrilled.
在此之前 从没有拍摄过这种景象
This has never been filmed before.
座头鲸似乎正在占虎鲸围击战术的便宜
The humpbacks seem to take advantage
of the orcas' herding skills.
哇
-完美的开始
Woo!