我们的海洋（2024）

And here, the current splits.
大部分向南流去
The majority heads south.
但在夏季月份 有些会流向北方的阿♥拉♥伯湾
But during the summer months,
some of it flows north towards the Arabian Gulf.
在这里的热带阳光下
Where, under the tropical sun...
飞快的蒸发速率 创造出全球海洋中最咸的海域之一
the rapid rates of evaporation have created
one of the saltiest seas in any ocean.
这里住着一种罕见的生物
It's home to a rarely seen inhabitant.
曾被误认为美人鱼
Once mistaken for a mermaid.
今天儒艮仍然是神秘的生物
Today, dugongs are still creatures of mystery.
这些温柔的海牛
These gentle sea cows were once common along the coasts of the Indian Ocean,
在澳大利亚到非洲的印度洋沿岸 曾经非常常见
from Australia to Africa.
在一些地区 它们几乎被猎杀殆尽
In some areas, they've been hunted almost to extinction.
它们喜爱茂盛的牧场 因此与海草草甸紧密相连
Their quest for lush grazing ties them to seagrass meadows.
但最近发现
But it's recently been discovered
儒艮会长途迁徙
that dugongs will make long-distance migrations
参加盛大的聚会
to take part in great gatherings.
具体为什么要这样做 则是一个谜
Exactly why they do this is a mystery.
如今能够看到这样的场景极为难得
Today, it's a rare privilege to see a sight like this.
只有在洋流令附近海域焕然一新时 才有可能实现
One that may only be possible because of the refreshing influence of the current.
世界各地
海草草甸以及依赖其生存的动物
Around the world, seagrass meadows, and the animals that depend on them,
正因受到海水升温的威胁而减少
are declining as they are threatened by rising sea temperatures.
积攒的热量导致更多水从洋流中蒸发
This building heat causes more and more water
to evaporate from the current,
增强了地球上最强大的天气系统
intensifying the greatest weather system on our planet.
季风
The monsoon.
每年它都会席卷北印度洋
Every year, it sweeps through the northern Indian Ocean.
如今 它比以往任何时候都更强大 且不可预测
And today, it's more powerful and unpredictable than ever.
季风一直将陆地的养分带入印度洋
The monsoon has always fed the Indian Ocean
with nutrients from the land.
但如今 它带来了不受欢迎的东西
But these days, it brings something much less welcome.
污染
Pollution.
每年有数万亿件塑料来到这里
Trillions of pieces of plastic end up here every year.
鬼蝠魟
Manta rays are wanderers
是搭乘全球洋流 超过2000万年的流浪者
that have been riding the global ocean current
for more than 20 million years.
但如今 当它们滤食浮游生物时
But today, as they filter feed on plankton,
无法避免摄入这些塑料
they can't avoid ingesting these plastics.
它们每看到的一块塑料
And for every piece they can see,
都伴随着无数它们无法看到的 与浮游生物一般大小的颗粒
there's a blizzard of plankton-sized particles they cannot.
一条鬼蝠魟被废弃的渔具困住
One manta ray caught in discarded fishing gear
无法摆脱
has no way to remove it.
塑料线最终会割穿它的身体
The plastic line will eventually cut through its flesh.
摄入塑料或是被塑料缠住
Ingesting plastics or becoming entangled in them
是这些古老的鬼蝠魟面临的现代风险
is a modern risk for these ancient rays.
但并不是非得如此
But it doesn't have to be this way.
我们或许破坏了海洋
We may have damaged our oceans,
但如果我们选择更好地管理废物
but if we choose to manage our waste better,
也许还能帮助海洋康复
we can help heal them too.
在莫桑比克南部海域
Off southern Mozambique,
有一个特别的地方 鬼蝠魟来到这里治疗感染的伤口
there's a special place where manta rays come
to seek treatment for their infected wounds.
它们并不孤单
And they're not alone.
很多种类的魟鱼都在这里寻求帮助
Many species of ray seek help here,
包括一种罕见的楔形鱼
including a rare wedgefish, a ray we've barely gotten to know,
一种我们知之甚少 但已极度濒危的魟鱼
but that's already critically endangered,
由于其高价值的鳍而被人类猎杀
targeted by humans for its high-value fins.
但最需要治疗的是鬼蝠魟
But it's the mantas that need the most help healing.
这条雌性鬼蝠魟是鲨鱼袭击的幸存者
This female is a shark attack survivor.
它翅膀上的咬伤有感染的风险
The bite damage to her wings risks infection.
于是它来到诊所
So, she's visiting her infirmary.
医疗团队开始工作
The medical team goes to work.
去除感染组织
They remove infected tissue,
这能促进新组织的生长
which promotes new growth.
它的伤口就是它们的食物
Her injuries are their food.
数以百计的魟鱼 顺着洋流来到这里接受急救救治
Hundreds of manta rays ride the current here for emergency care.
但也有风险
But there are risks.
公牛鲨在这些水域巡逻
Bull sharks patrol these waters.
于是这些聪明的魟鱼互相照应
So, these intelligent rays watch each other's backs...
让大家都能获得至关重要的救治
allowing all of them to get the essential care they need.
配以正确的治疗 它们的身体拥有惊人的再生能力
With the right treatment, their bodies have incredible powers of regeneration.
这些患者重获新生
These patients have been given a second chance...
多亏了在这个特殊的避难所 得到的救治
thanks to the care they've received at this special sanctuary.
魟鱼是全球洋流的温柔流浪者
A stronghold for so many rays,
对它们来说 这里确实如堡垒一般
the gentle wanderers of the global ocean current.
现在向南前行 洋流加快速度 并获得了一个新的名称
Now, heading south, the great current picks up speed and a new name,
阿古拉斯洋流
becoming the Agulhas Current,
洋流将赤道的热量带向非洲尽头
carrying equatorial heat toward the tip of Africa,
在那里 开始与大西洋凉爽而富饶的水域混合
where it begins to mix with the cooler, richer waters of the Atlantic Ocean.
这样的条件对大白鲨极为理想
Ideal conditions for the great white shark.
它是少数几种温血鲨鱼之一
It's one of the few warm-blooded sharks,
温血能够提高肌肉性能及智力水平
which improves muscle performance and sharpens its mind.
要在这片大白鲨统治的水域生存
To survive here, in waters ruled by the great whites,
你必须比它更聪明
you have to be smarter.
一只八周大的小海豹
A young seal pup, just eight weeks old.
它是一个非洲毛皮海豹家族的一员
Born into a colony of Cape fur seals.
它得学习如何在大白鲨的家门口生存
She'll need to learn how to survive with great whites on her doorstep.
是时候让这名新生 去海豹学校报名入学了
It's time for this new student to enroll at seal school...
它的同学已经在学习最重要的课程
where her classmates are already being taught
the most important lessons of all.
规则一:远离海洋中鲨鱼出没的地方
Rule one, keep away from the sharp end.
规则二:永远不要放松警惕
Rule two, never let your guard down.
聪明的海豹不会疏于防范
Wise seals don't get caught napping.
你可以从别人的错误中吸取教训
You can learn from others' mistakes.
但最重要的一课是精诚合作
The most important lesson of all, though, is to work together.
它们协同如一的能力
Their ability to act as one
使一群毛皮海豹 比任何单个鲨鱼都更为强大
makes a group of fur seals stronger than any individual shark.
面对一群海豹
Against the mob...
连大白鲨也会退缩
even a great white will back down.
但真正的智慧较量尚未到来
But the real battle of wits is yet to come.
一只南象海豹
A southern elephant seal.
来自南极水域的突袭者
A raider from Antarctic waters,
正在寻找新的机会
looking for new opportunities.
起初毛皮海豹 不知该如何看待这位陌生来客
At first, the fur seals don't know what to make of this stranger.
它看起来像海豹
He looks like a seal...
但比鲨鱼还大
but he's even bigger than the shark.
令它们惊讶的是它与鲨鱼一样致命
And, to their surprise, just as deadly.
小海豹知道陆地是毛皮海豹的避难所
The pup knows that land is a fur seal's refuge.
但这位捕食者不会在水边停下
But this predator doesn't stop at the water's edge.
它被逼入绝境
She's cornered.
但在这个群体中 它从不孤单
But in this group, she's never alone.
它只要坚守阵地
She just has to stand her ground...
直到后援抵达
until backup arrives.
它们已经赶走了一条大白鲨
They've already sent off a great white.
只要团结一致 它们也会让这只象海豹打包回家
Together, they'll send this elephant seal packing too.
数量优势和群体智慧
It's their strength in numbers and collective intelligence
让这些毛皮海豹在好望角生存下来
that has allowed these fur seals to survive here at the Cape.
努力是值得的
And the effort is worth it...
因为每年一次
because once a year,
当温暖的印度洋洋流
as the warmer Indian Ocean current
将凉爽的大西洋海水困在岸边时
traps the cooler Atlantic waters against the coast,
会迫使鱼群大量聚集
it forces together shoals of fish in vast numbers.
当地人称之为“沙丁鱼风暴”
It's known locally as the sardine run.
数以亿计的沙丁鱼 形成长达八公里的鱼群
Hundreds of millions of sardines form shoals up to five miles long.
就在毛皮海豹的家门口
Right on the fur seal's doorstep.
但它们无法长时间独享这场盛宴
But they won't have it to themselves for long.
俯冲潜水鲣鸟来了
Here come plunge-diving gannets.
还有多达两万条海豚
And up to 20,000 dolphins.
以及数以千计的鲨鱼
Along with thousands of sharks.
甚至还有…
And even...
巨鲸
great whales.
这是无与伦比的盛宴 只有通过洋流才可能实现
It's an unrivaled bounty, only made possible by the current...
将曾经的海洋沙漠…
transforming what was a marine desert...
变为所有海洋中最宏大的盛宴之一