地球壮观河流之旅 Ⅱ（2022）

最终形成全新的瀑布
..eventually forming whole new waterfalls.
就像童话里的故事
It's like something from a fairy tale.
但并不是这里所有的东西都在水面上
But not everything to see here is above the water.
下面是一场派对
Below, there's a party under way.
多瑙河营养丰富、富氧的源头
The nutrient and oxygen-rich headwaters of the Danube
创造一个完美的地方，来聚集和寻找食物
create the perfect place to gather and search for food.
金枪鱼群
Golden shoals of barbel
与优雅的格雷林鱼和繁忙的鳟鱼混合
mix with graceful grayling, and busy trout.
许多鱼利用这些淡水产卵
Many use these fresh waters to spawn...
…包括一个物种
..including one species
在地球上其他任何地方都找不到
found nowhere else on Earth.
每年春天，如果你仔细观察，
Each spring, if you look carefully,
你会发现这条河的顶级捕食者之一
you'll find one of the river's top predators.
胡琛鲑鱼，也被称为多瑙河鲑鱼，
The huchen, also known as the Danube salmon,
可以长到一米多长
can grow over a metre long.
世界上最大的淡水鲑鱼
The largest freshwater salmon in the world.
今天，这对情侣正展现出温柔的一面
Today, this pair are showing their softer side.
用她有力的尾巴，
With her powerful tail,
雌鸟把沙砾扫走
the female sweeps away the gravel
在河床上形成一个小凹陷
to make a small depression in the riverbed.
产卵的巢
A nest in which to lay her eggs.
很快，河床看起来就像春天一样干净
Very soon, the riverbed looks like it's had a spring clean.
雄性加入她并交♥配♥
The male joins her to mate...
保护她不受不必要的关注
..and guards her from any unwanted attention.
但是
But then...
也许最好还是把这些巨大的捕食者留给它吧
..perhaps it's best to leave these giant predators to it.
多瑙河的秘密水域很慷慨
The secret waters of the Danube provide a bounty
生命的机遇
of opportunity for life.
那里有鱼
And where there are fish...
其他人肯定会效仿
..others will surely follow.
今天，Zdena Gavranovic希望能钓到一条鱼
Today, Zdena Gavranovic is hoping to catch a fish
在清澈的海水中茁壮成长的鱼，
that thrives in crystal clear waters,
鳟鱼
the trout.
她先做些鱼蝇
She starts by making some fishing flies.
克罗地亚语：
IN CROATIAN:
她的目标是制♥造♥完美的昆虫
Her aim is to make the perfect insect...
可能会骗鳟鱼吃的东西
..something that might just trick a trout to eat it.
克罗地亚语：
IN CROATIAN:
翅膀上有细小的羽毛，身体上有丝绸
Tiny feathers for the wings and silk for the body.
坚固到足以看起来，
Solid enough to look the part,
足够精致，可以乱真
yet delicate enough to cast.
现在，是时候使用它们了
Now, time to put them to use.
首先，她抛出鱼线
First, she casts out her line...
空中划了一圈
..with a loop in the air.
尽可能轻地落到水面
Released on to the water as light as she can...
放苍蝇引诱猎物
..placing the fly to entice her quarry.
飞钓是一种特殊的钓鱼方式
Fly fishing is a special kind of fishing.
克罗地亚语：
IN CROATIAN:
时间和节奏就是一切
Timing and rhythm are everything.
每次出演都会放出更多鱼线
Each cast lets out a little more line...
再多一点希望
..a little more hope.
克罗地亚语：
IN CROATIAN:
这次运气不好，这并不重要
No luck this time, not that it matters.
当一条河如此美丽，
When a river is as beautiful as this,
就很值得来
that is rewarding enough.
虽然有些人被这条河的宁静所吸引，
While some are drawn to the tranquillity of the river,
多瑙河的水域不断变化
the waters of the Danube constantly change.
斯洛文尼亚是多瑙河最大的支流之一，
In Slovenia, one of the Danube's largest tributaries,
萨瓦提供了完全不同的体验
the Sava, offers an entirely different experience.
呜呜呜！
Woohoo-hoo!
就像他周围汹涌的水流，
Like the rushing waters around him,
皮划艇运动员Rok Rozman在这里找到了释放
kayaker Rok Rozman finds a freedom here.
但这并非没有风险
But it's not without risk.
急流中可能有树，
There might be trees in the rapids,
可能非常危险
which can be really dangerous.
有些岩石会产生虹吸
There's some rocks that produce siphons.
所以，就像老年人说的，
So, like old people said,
这条河充满了陷阱
the river is full of traps.
与此同时，这条河充满了欢乐
But, at the same time, the river is full of joy.
在皮划艇上与河流相遇的人
People who meet the river in a kayak
他们对这条河的看法总是不同的
will always see the river differently.
对于同样是生物学家的洛克来说，
For Rok, who is also a biologist,
河流带来的不仅仅是享受
rivers bring so much more than just enjoyment.
因为这条河的多样性最丰富
Cos the river has the most abundance in diversity
还有任何栖息地之外的生命，你知道吗？
and life out of any habitat, you know?
输送营养、水、能量，
Transporting nutrients, water, energy,
这是大自然最重要的部分
it's the most important part of nature.
面对生活的压力，
And when faced with the pressures of life,
洛克也相信这条河能有所帮助
Rok also believes the river can help.
如果你有问题，
If you have problems,
你可以去和见精神科医生，
you can go and talk to the psychiatrist,
或者你可以坐在河边
or you can go and sit next to the river.
更好、更便宜、更好，取决于你
It's up to you what's nicer, cheaper, and better.
当他们从源头和阿尔卑斯山谷流下，
As they flow down from headwaters and alpine valleys,
多瑙河支流终于汇合在一起了
the Danube tributaries finally come together
形成这条大河
to become this great river.
乡镇
Towns...
…农田
..farmland...
…城市，开始沿着河流路线排列
..and cities begin to line its route.
数千年来，人们在河岸定居下来
Over thousands of years, people have settled on its banks
驯服了这条河流
and have tamed the river...
…矫正和设计改造
..straightened and engineered
帮助抵御每年的洪水
to help protect against annual flooding.
但这里仍然有自然野生的地方
But there are still wild places here.
就在奥地利首都维也纳郊外，
Just outside Austria's capital, Vienna,
位于多瑙河奥恩国家公园
lies Danube-Auen National Park.
一片受保护的森林和湿地
A strip of protected forest and wetland
在多瑙河畔
on the banks of the Danube...
是一些非凡生物的家园
..home to some extraordinary creatures.
地面噼啪作响
EARTH CRACKLES
一只幼小的欧洲池龟
A baby European pond turtle.
四个月前，乌龟的卵埋在这里，
Buried as an egg four months ago,
现在孵化出来，可以自♥由♥活动了
it's now hatched and free.
龟妈妈选择了一个高处筑巢
Its mother chose a nesting spot that would be safe from flooding...
对幼龟来说，离河水就远了
..but now it's far away from water.
这个小生命需要进行一次史诗般的旅程
And this tiny creature needs to go on an epic journey...
只能依靠自己
..all on its own.
当你缩小到指甲大小的时候，
But when you're the size of a thumbnail,
所有的东西都大得多
everything is so much larger.
即使是小蚂蚁也是重要人物
Even tiny ants are a big deal.
但这只河龟有自己的盔甲
But this turtle comes with its very own suit of armour.
它的胳膊和腿可能很小，
Its arms and legs might be small,
但它们很有力
but they are powerful.
用它所有的能量，
Using all its energy,
本能地朝着水走去
it instinctively heads towards water.
在每年孵化的小龟中，
Out of all the baby turtles that hatch every year,
只有2%的人能进入成年
only 2% will make it to adulthood.
就在你认为自己成功的时候
And just when you think you've made it...
终点线似乎很遥远
..the finish line seems so very far away.
不只是小龟们在移♥动♥
And it's not just the turtles on the move.
铃响了
BELL RINGS
要么现在，要么永远
Now or never.
侥幸脱险
A close shave.
幸运眷顾勇敢的人
Fortune favours the brave.
这种龟在奥地利濒临灭绝，
Critically endangered in Austria,
每一只龟都有价值
every turtle that makes it counts.
最后
At last,
清凉的水
cool and refreshing water.
这对我们的小龟来说可能很陌生，
It might seem unfamiliar to our young turtle,
但最后，回家了
but, finally, home.