The Danube is the queen of rivers like a European Amazon 多瑙河就像欧洲的亚马逊河一样是河流女皇
covering half the continent. 流经半个欧洲大陆.
It's the eldest's house freshwater fish in the world: 它拥有世界上最大的淡水鱼之一：
Beluga. 欧洲鳇.
This river has been offering for centuries refuge for endangered species 这条河几个世纪以来一直是濒危物种的庇护所
like the majestic mottled white eagle ... 例如雄伟的白尾海雕...
Here are the oldest river forests in Europe. 这里有欧洲最古老的河流森林.
从 黑 森 林 到 黑 海
Every year,millions of birds follow Danube 每年数以百万计的雀鸟沿着多瑙河
in their annual odyssey to the Arctic and Africa. 进行往返北极地区和非洲的长征
No other water in history has had such an important economic and cultural 历史上没有一条水道比得上它在经济和文化上的重要性
This corridor unites people for hundreds of years 这条重要的走廊几千年来一直深深吸引人们
On its way the Danube passes through 10 countries 多瑙河流经十个国家
and 4 vibrant capitals: 和4个充满活力的首都：
Belgrade,Budapest,Bratislava and Vienna 贝尔格莱德、布达佩斯、布拉迪斯拉发和维也纳
that's what he does the most international river in the world 所以多瑙河是全世界流经最多国家的河流
Despite human intervention it remains a river full of secrets 虽然人类改变了多瑙河许多,它仍然是一条充满秘密的河流
and incredible scenery. 和令人叹为观止的景观.
The Danube created a maze of islands,lakes and forests 多瑙河塑造了一个由浮岛 湖泊 洪溢森林组成的迷宫
what are the house for 4000 species of animals. 亦是四千种动物一千种植物的家园
Delta is famous for its pelicans. 三角洲的鹈鹕很有名.
They multiply here in huge colonies 它们在这里大量繁殖
do you protect and hide from the sight of reeds. 茂密的芦苇提供保护盒藏身之所
Every spring around 2500 pairs 每年春天 2500对配偶离开非洲
leaving Africa for the Delta. 飞到多瑙河三角洲繁殖.
Here,does the Danube cross Romania and Ukraine to the Black Sea 在这里,多瑙河穿越罗马尼亚和乌克兰进入黑海
But this powerful river does it have a strange origin 不过这条河的开端比较奇怪
Officially,start here on no man's land,between the river and the sea. 从这里开始,在河流和海洋无人区之间.
This is the old lighthouse at Sulina from kilometer zero. 这里是位于苏利纳的旧灯塔,多瑙河的零公里点.
Unlike other rivers in the world 与世界上其他河流不同
Is the length of the Danube measured from the spring in the mountains. 多瑙河的长度是由河口开始度量.
Crossing half of Europe covers almost 3000 km. 多瑙河横越半个欧洲长度接近3000公里.
With each landscape he passes through he changed his personality after each one 流经各种各样的地形,特质亦会随着地形而转变
Before I reach the wilderness of the Delta passes through the plains of Romania. 多瑙河到达被湿地复盖的三角洲前,流经罗马利亚平原.
Is it narrowing at the Iron Gates forming a gorge through the Carpathian mountains. 在铁门冲刷出一个贯穿喀尔巴阡山脉的峡谷.
Then cross the Hungarian desert 然后穿过匈牙利沙漠
and just before Budapest He suddenly changed direction 到达布达佩斯之前 突然改变方向
turning in the direction of the Alps. 掠过阿尔卑斯山北面的山麓.
Its source is in the depths the mountains of the Black Forest 它的源头坐落于德国浪漫的黑森林深处
This thick and dark forest hide a creature from view 这个幽深黑暗的森林隐藏了一种动物
But nothing can do you cover your voice 任何事都无法掩盖牠们传到远处的叫声
In the spring,does the forest resound by the rooster's cry. 春天 松鸡的叫声响遍整个森林
The dense forest it also belongs to the Linx 茂密的森林也是猞猁的家园
In the brains of the mountains the little river called Breg springs. 在这些高山上 一条叫布雷格河的小溪霎时充满活力.
Crystal clear water comes out of the ground through several places. 晶莹剔透的河水由几个位置渗出河面.
This could be the source the strongest European river. 这可能是欧洲最强河流的源头.
At least that's what he says 至少牌子上那样写着
But no one knows for sure. 不过没有人能确定.
The Danube springs from several sources. 多瑙河有几个源头.
That's why in the castle garden of the Donaueschingen 所以有人在多瑙艾辛根城堡的花园盖了一个水池收集涌出来的地下水
this collection basin was built considered to be the source of the river. 把它称为多瑙河的源头,其实没有分别.
But it wasn't until the Breg River unites with another river Brigach 只有当布雷格河和另一条在黑森林的小河
the resulting water flow is called the Danube. 布里加赫河汇流后 才能称为多瑙河.
It's the beginning of an all-powerful system The Amazon of Europe 这个汇流点就是浩瀚的河系 欧洲亚马逊的开端
what divides and unites half the continent. 它将半个欧洲大陆分割 同时连接起来.
But before that happens. 但在那之前.
The Danube must cross a major problem 多瑙河需要克服一个大问题
Just 36 km from the spring The Danube disappears back underground. 由涌出来的泉水形成的多瑙河只流了36公里 河水已经渗入沙石 流回地底.
Here,where the limestone mountains they separate the rivers of Europe 在这里 欧洲的河流被石灰岩山脉分流
a war is about to begin between the Danube and the Rhine. 多瑙河和莱茵河争夺水源的战争亦在这里开始
The Rhine carries its groundwater north and the Danube to the Black Sea 莱茵河把地下水带到北海,多瑙河带到黑海
Little by little,do the Rhine win 莱茵河逐渐胜出这场战争
This groundwater course The Black Danube 这条地下河被称为黑色多瑙河
Speleologists have tried for years to identify the route of this ghost river 多年来 洞穴探索专家试图确定这条鬼河的准确路径
They still haven't succeeded. 他们仍然没有成功.
They know that more and more it flows in the wrong direction 但他们知道当越来越多的地下水错误的
to the West,to the Rhine 流向西面 进入莱茵河
One day,the whole system this one of the caves will crumble 终有一天 整个洞穴系统会崩塌
and the Danube will be forced to leave.to the surface and change direction. 然后多瑙河会被迫浮上地面.流向亦会随之改变.
But until that happens 不过在这件事发生之前
the waters of the Danube will disappear underground for 200 days a year. 多瑙河的河水每年都会深入地底消失200天.
It looks dry but he continued his journey 河流看起来已经干涸 不过它会回来 继续旅程
Downstream,the Danube makes its way among the forests of southern Germany 顺流而下 多瑙河蜿蜒地穿过德国南部的石灰岩森林
for a meeting with the forces which will transform them. 准备汇合将它彻底改变的力量.
Even though he seems to have lost fight the Rhine 就算多瑙河真的输给莱茵河
will it never dry out 它也永远不会干涸
Fresh forces are coming from the Alps. 阿尔卑斯山会为它补充河水
In winter,the Alps accumulates large amounts of snow 冬天 大量积雪堆积在阿尔卑斯山脉的山峰
When spring comes torrents start from the mountains. 春天来临,冰冷的山洪从山坡倾泻而下.
Full of fine stones the water polishes the rocks on the surface. 含有细沙的水一边冲下山坡 一边打磨岩石.
Water carrying sand and stones and store them in the alpine valleys. 山上的沙石被洪水的力量带走 再沉积在宽阔的阿尔卑斯山山谷.
These mountain rivers are the ideal habitat for otters. 这些流入多瑙河的山区支流是水獭的理想栖息地.
With their thick fur and body perfectly adapted to cold waters 牠们拥有厚毛皮和流线型的身躯 很适合在水流急速寒冷的河流生活
do I find food easily in these seemingly empty waters. 牠们亦能在看似无物的河里轻易找到食物.
In the spring,the giant lizard leaves the classic course 春天,巨大的多瑙哲罗鱼
and starts upstream on these tributaries. 离开主流 游入支流.
So is the toothpick which is part of the carp family. 鲤科一员的软口鱼也一样.
They pile upstream driven by an inner impulse. 牠们成群游向上游 受内在迫切需求驱策.
Do they have to multiply before the water heats up 必须在炎夏的热气让河水变暖之前繁殖
A male is approaching careful of a female 公多瑙哲罗鱼小心接近母鱼
Femel Hits his tail hard to make a nest in the rocks 母鱼有力的尾巴扫动在松散砂砾中建造鱼巢
This is where he will lay his eggs. 牠要在这里产卵.
There's a lot of fuss on the bench They have to file their eggs soon. 软口鱼群有种紧迫感,牠们必须尽快产卵.
For losers,the ecstasy is growing. 回头看哲罗鱼 兴奋的情绪不断增强.
Successful The diggers laid their eggs in time. 成功了 软口鱼及时产了卵.
Every female lays between 20-100000 eggs 每条母鱼都产下2到10万颗鱼卵
Then,exhausted the fish start downstream from the Danube. 然后精疲力尽的母鱼顺河漂流回到多瑙河.
The waters of the Alps have transformed The Danube in a wide river. 阿尔卑斯山雪水让多瑙河变成宽广大河.
Now he enters a new Tsar and one of the most beautiful valleys in the world. 现在河水流入新国家 全世界最美的河谷之一
The Austrian Valley Wachau. 奥地利的瓦豪河谷.
Here,the waters of the Danube are very gentle. 这是多瑙河最温文的河段.
It's weird to see exotic creatures brightly colored 很难相信这么亮丽的外来生物
so close of a frozen mountain range. 如此接近冰冷的山脉而能悠游自在.
Emerald porpoises and lizards they are usually found further south. 蜂虎和绿翡翠蜥蜴通常栖息在更远的东南方
The secret of the presence of these animals is the climate particularly mild 这些动物得以生存的秘密是这里异常温和的气候
The persecutors make their nests in the clay walls 蜂虎在葡萄园的黄土墙筑巢
and due to the mild weather does not suffer from heat in summer. 瓦豪河谷温和的天气令牠们在夏天也很凉爽
Loess is an alluvium brought by water.such as gravel and sand. 黄土是淤泥跟砂石一起从阿尔卑斯山冲刷下来.
In the spring,the Wachau Valley blooms. 春天,瓦豪河谷百花盛放.
Autumn grapes shine being ready to be picked. 到了秋天 葡萄闪闪生辉 可以采摘.
Does Wachau have an international celebrity for his wines. 瓦豪河谷的葡萄酒国际知名
The Danube offers terraced vineyards a special advantage. 多瑙河赋予陡峭的梯田 令葡萄园有特殊的优势
Here,the cold-humid air from the forests of the North 北部森林阴凉潮湿的空气随着河水来到这里
meets with hot dry air from the plains of Hungary. 然后跟来自匈牙利大平原干燥温暖的空气相遇
This creates the "perfect climate".for grapes and animals. 这为葡萄和动物创造了“理想的气候”.
Is Wachau the gate for an hour connected with the great river,the Danube. 通过瓦豪河谷这扇大门是跟伟大的多瑙河密不可分的城市.
Vienna. 维也纳.
The huge metropolis on the river he slowly wakes up to life. 这个多瑙河畔最大的城市慢慢从睡梦苏醒.
About 2 million people are preparing for a new day. 接近200万人准备展开新的一天.
If you live here only if you see the Danube. 但是 当地人几乎看不到多瑙河
The water course runs through the city and an artificial canal 流通维也纳的是一条人工水道 - 多瑙河运河
But a few miles from the hustle and bustle of the city is the world totally different 不过只是距离烦嚣的闹市几公里 在维也纳的边境 有一个完全不同的世界
Donau-Auen National Park. 多瑙河湿地国家公园
Is the Danube as wild here such as the South American Amazon. 这里的多瑙河像南美洲的亚马逊河充满野性
This national park is home to some of the most dynamic habitats in Europe. 这个国家公园是全欧洲物种最丰富 最有生气的动物栖息地之一
This jungle Temperate it's a maze of dead arms. 这个温带森林是一个由河湾和牛轭湖组成的迷宫
Is water the master of these forests 这里是一个水世界
The first rays of the sun they wake the young herons. 曙光唤醒年幼的苍鹭
Here they patiently make their nest. 牠们迫不及待的要离巢
This water is the refuge for a species endangered on the continent. 苍鹭脚下的水域是一种欧洲几近绝迹的动物最后的庇护所
The European Turtle 牠们是欧洲泽龟
The life of this dwarf heron unfolds in the reeds. 大苇莺通常隐身在芦苇之中生活
This is where they build their nest and they feed their young. 牠们在这里筑巢和喂育幼鸟
What's in it have to go out 有进 自然有出
Do dwarf herds sneak in through reeds with great skill. 小麻鳽以高超的技巧在芦苇间穿梭
Don't get your feet wet not even when fishing. 就算抓鱼 也避免弄湿双脚
Their striped plumage makes them invisible to fish. 牠们的条纹羽毛跟芦苇相衬 使下面的鱼看不见牠们
Are the chicks well hidden in the reeds 牠们将幼鸟藏在芦苇丛的深处
Do parents care when do they come or leave the nest 父母往返巢都非常谨慎
so as not to expose himself position of predators. 避免在掠食者面前暴露鸟巢的位置
Is the "swampy" area of the Danube an area between the river and the forest. 多瑙河湿地在河流和森林之间形成一片荒野
Is it an underwater world in a permanent motion. 这个是不断演变的两栖世界
It all depends on the supply with water from the Danube canals. 万物都以来多瑙河的主流为分流供水
These dead arms are among the most fertile ecosystems of river forests 牛轭湖是河川森林最有生产力的生态系统
But this aquatic paradise is threatened. 不过这个湿地天堂正受到威胁
Over the centuries Did the Danube cover with a layer of stones 多个世纪以来 多瑙河蜿蜒而进
the soil of flooded forests. 为整个洪溢林铺上一层砂砾
This gravel is crucial for all life forms here. 砂砾对这里所有的动植物都非常重要
The east of Vienna it is over 60 meters thick. 维也纳以东的砂砾层厚达60米
It is the largest freshwater tank 形成了最大的淡水池
But Gradually the dead arms begin to dry. 但是这潭死水正逐渐干涸
Cause 原因
The Danube is sinking deeper and deeper in its own bed. 多瑙河正不断使自己的河床变深
The level of the Danube is constantly decreasing cutting off the power of the dead arms. 砂砾层的水位随着河床变深而下降 切断了牛轭湖的水源
Here in Vienna the Danube flows freely 在维也纳以东 多瑙河自由地流动
creating its own sandy shores 沿途中积出天然的沙洲
But appearances are deceiving to reach here,he passed huge dams. 不过这只是假象 要来到这里 河水须经过巨型水坝
Do ships and barges pass through the lock 船只和驳船可以通过船闸
but the gravel and sand brought of the Danube in the Alps,are they lagging behind 不过来自阿尔卑斯山的沙砾碎石却会被阻隔
Because of this the river gets deeper and deeper. 所以河道越来越深
University researchers and river authorities 维也纳自然资源大学的科学家和管理河道的政府部门
investigates the state of the Danube downstream of the dam. 在调查河水流过水坝之后的情况
How many stones Transport Danube? 河水运载着多少砂砾呢?
They discovered the riverbed Is it in constant motion 他们发现河床不断移动
The antenna detects a signal. 天线检测到信号.
Receiver and GPS can accurately locate the signal. 配合全球定位系统 接收器可以准确锁定讯号的来源
Researchers are looking for some rarities: "Plastic stones". 科学家在找一些特别的东西"塑胶石头"
Each "tracking stone" emits a unique signal. 每块卵石追踪器都有各自的讯号
Are they thrown into the water at certain preset points 它们在预定的地点被抛进河里
to check where and how moving gravel. 检查砂砾的移动模式和目的地
Each piece Migrates about 3 km per year. 惊人地发现是每颗卵石每年迁移约三公里
The sonar can map every inch of the riverbed. 多普勒声纳系统可以扫描出河床的每一厘米
The received data is added from "plastic stones" 将声纳图结合塑胶卵石的资料
to achieve an exact 3D model of the empty Danube. 便有足够的数据制作精确的多瑙河河床三维模型
Gravel and sand gather in the dunes moving along the river. 卵石和砂砾会聚集成沙丘状 流向下游
They are transported annually around 800,000 tons 每年有八十万吨砂砾从多瑙河这一段
only on one part of the Danube. 输送到下游.
Nothing comes upstream Is the riverbed getting deeper and deeper 上游则没有新的砂砾增加 所以河床越来越深
Thanks to this information the engineers took action 这些资料令河道工程师指定措施
to prevent the Danube to dig even deeper. 防止多瑙河将河床越挖越深
Collect "stones" downstream and unload it upstream 他们在下游收集砂砾 然后倒回上游
100,000 tons every year 每年倾倒的砂砾有十万吨
But that's only half the point. 但这个数量只是所需的一半
Is the fight with the riverbed endless I can only increase their efficiency. 对抗河床加深是永无止境的 能做的只有提高效率
Attempts are being made to stop erosion by adding larger stones. 有关方面已经尝试增加更大和更重的砂砾以减少侵蚀
Is it an endless job 这项工作没有完结的一天
but the fate of animals from river forests 而河川森林的生物
depends on this success 要依赖它继续生存
Just 40 km below Vienna and Bratislava,the capital of Slovakia. 由维也纳顺流而下短短40公里就是斯洛伐克的首都 - 布拉迪斯拉发
Here,where the Danube passes through the middle of the city 在这里,多瑙河穿过市中心
a performance takes place Every night. 每晚都有演出.
The beavers are back. 河狸回来了.
Hidden by night they build dams on the river. 再夜幕的掩护下 牠们在河边建造自己的水坝
100 years ago the beavers have disappeared from the river 100年前,河狸已经在多瑙河绝迹
In 1966 there were a few more in Germany and Austria. 1966年 有几只河狸在德国和奥地利被放生
Now they have spread upwards and down the river. 现在 牠们已经繁殖到上下游都有
Isn't everyone happy of their return. 不是所有人都为牠们的回归而高兴
A serious guard and obstacle. 一个篱笆绝对称不上障碍物
That doesn't stop them to enter the gardens of men. 阻碍不了河狸闯入居民的花园
They dig and bear fruit at the base of the trees. 河狸吃果树的树干
Fruit shoots on the branches of trees 树枝是挺好吃的
and the fruits are not ignored. 水果当然夜不能错过
No wonder c beaver traps have become a mini-industry in Bratislava. 难怪捕捉河狸已经成为布拉迪斯拉发的小行业
He will be released without being hurt by people 他会被释放而不会被人伤害
because I eat their fruit. 因为我吃他们的水果.
Immediately after Bratislava,next a "controversial" concrete and steel barrier. 紧接布拉迪斯拉发的是一道极具争议性的钢筋屏障
Hydraulic power plant of the Gabcikovo. 加布奇科沃水力发电厂.
Because of the hydropower plants in Vienna 因为维也纳的水电站
water level between Vienna and Bratislava decreases by 2 cm annually. 令多瑙河在维也纳和斯洛伐克之间的水位每年下降2厘米.
The construction of this leviathan destroyed miles of precious swamps. 但建造这座巨型建筑摧毁了很多公里的珍贵湿地
Here,the waters are measured and divided. 河水在这里会被测量和分流
Some of it is for sports. 甚至进行体育和休闲活动
It's not just a river anymore 这条已经不再是一条河
but just a water channeled between artificial barriers 只是一条在人工屏障之间的水道
And life in the depths it changed. 水底的野生动物也发生了变化
Stronghilus are not native fish Am I an alien species 圆头虾虎鱼并非本地鱼类 是外来品种
They feel at home here. 但牠们已经把这里当做自己的家园
Did they come from the Black Sea 牠们远道从黑海而来
brought by barges to ballast tanks. 货运驳船的压载水带牠们来到这里
Hydraulic power plant of the Gabcikovo completely changed the face of the Danube. 加布奇科沃水电站已经完全将多瑙河改头换面
It flows unnatural by law almost 60 km to Hungary 这段60公里人工拉直的河道直通匈牙利
But the Danube has not preserved never the same course for a long time. 但是多瑙河从来不是单一河道
Millions of years ago 数百万年前
this hydro would be located under the waters of an ancient sea. 这个发电厂的位置可能是一个远古时代的大海
This is where the Danube ends. 这里就是多瑙河的终点
Then the water penetrated the Carpathian mountains 不过之后洪水的力量冲破了喀尔巴阡山脉
and the Danube reached the Black Sea extending by 1000 km. 多瑙河继续流向黑海 延长了一千公里
Now the Danube still has an important tributary: 现在多瑙河还有一条重要的支流：
Tisza. 蒂萨河
Crosses the Hungarian and flows into the Danube. 它由匈牙利的肥沃大草原流入多瑙河
A unique breed of cattle grows here 这里生长着一种独特的牛
But in April,the endless war it becomes the territory of strange birds 但是在四月,平原一望无际的草地是属于一种奇怪的鸟类的
in a strange ritual mating. 牠们的交配习性更奇怪
Bustards. 牠们是大鸨
Males swell their feathers to impress the females. 雄鸟挺起胸膛吸引雌鸟.
Males can weigh up to 18 kg being the heaviest flying birds. 雄鸟体重可达18公斤,是最重的飞鸟.
Pusta is an important territory for mating 对于很多受威胁的草原鸟类来说
for many birds threatened with extinction. 这些宽敞的平原是重要的繁殖地.
Do they need space to reproduce 牠们需要空间繁殖
Here,where the Tisza and the Danube cross the Hungarian desert 蒂萨河和多瑙河在这里横越匈牙利大平原
millions of birds they stop on their way to Africa 数以百万的候鸟在前往非洲途中在这里休息
He was regaining his strength of the long flight to the South 牠们要补充体力 准备飞往南方的漫长旅途
In these fields I find grains and insects 牠们在收割后的田地找到足够的食物
enough how to satisfy his hunger. 例如谷物和昆虫.
The Tisza flows undisturbed to the Danube 蒂萨河平静地流向跟多瑙河的汇合点
Deep down,it's on its way to spend a drama 不过地底将出现难得一见的一幕
It happens once in a few years. 这种生物几年才出现一次
A date in early summer 初夏时分
when the temperature,humidity and pressure are ideal 当温度 湿度和气压完全适合
from the riverbed they emerge some miniature monsters 微型的怪物从河床的淤泥爬出来
Pentecost. 牠们是蜉蝣的幼虫
I get out of the water and fly to the bushes by the river. 牠们要浮上水面 飞到河岸上最接近的矮丛
Do they overflow and transform in adult insects. 在这里蜕皮 成为成年蜉蝣
Males are the first to hatch. 首先出动的是雄性蜉蝣
It flies wildly in search of females. 牠们在水面不断搜索雌性蜉蝣
Half an hour later do females with a longer tail appear 一个半小时后 第一群尾部较长的雌性出现
As the males appear,they rush towards them. 牠们浮上水面 雄性蜉蝣就扑过去
Do they mate forming small clumps on the surface of the water. 在水面一群群地集体交配
The pleasure doesn't last long. 欢愉是短暂的
After mating,the males die and float hundreds downstream. 雄性交配以后就死亡 成千上万的蜉蝣尸体漂往下游
Fertilized females it forms thick clouds 受精的雌性蜉蝣在水面联群结队
and start upstream to lay their eggs. 匆忙飞往上游产卵
Every female lay around of 9000 or 每只雌性大约产下九千颗卵
The current will store them in the mud on the bottom 虫卵被水流送回去
exactly where they appeared their parents two hours ago. 两个小时前蜉蝣父母现身的地点 沉淀河床的泥土里
Do the larvae hatch and wait years for their turn. 虫卵要在那里孵化 幼虫要等待多年 直到牠们的时机来临
Immediately after sunset is the show over 日落之后 这个奇观便结束
No ephemeris he won't talk until morning. 没有蜉蝣能生存到翌日
The Danube leaves the show ephemeris and rifle behind 离开蜉蝣奇观和匈牙利大平原
and are heading for the Carpathian Mountains. 多瑙河向喀尔巴阡山脉进发
Throughout history it has grown road through these mountains. 经过长年累月的冲击 多瑙河穿越了这个山脉
Here at the Iron Gates. 这里是铁门峡谷
Is the Danube crowded highest gorge in Europe. 多瑙河夹在欧洲最高的沟壑之间
The rocks rise proudly 300 meters above the water. 山崖在水面300米耸立
The river is only 150 meters wide and 90 depth. 河道宽只有150米 深90米
For barges,"Iron Gates" they meant the borders of Europe. 对于多瑙河的驳船船员，铁门峡谷标志着欧洲的边界
It is the most difficult and more dangerous sector of the river. 这里是整条多瑙河最难驾驶和最危险的一段
Because of the meanders and rocks permanent vortices are formed 蜿蜒曲折的河道和水底岩石
and strong surface currents 令这里有持续而汹涌的急流、危险的漂浮物和强力的暗流
In some places,steamships they were towed upstream by trains. 在某些地点甚至要用火车拖着逆流的汽船前进
Fishermen were stretching their nets at the mouth of the "Iron Gates." 渔民在铁门峡谷的入口撒网捕鱼
They generally caught small catches 捕到的多数是小鱼小虾
but did they hope to catch the most valuable fish in the world. 但无论是以前或现在 他们都想捕到世上最珍贵的鱼
Morunul,what can happen at a length of 8 meters. 欧洲鳇的体长可以生长到八米
A single Female Adult full of pounds of caviar 一条充满鱼子的雌性欧洲鳇所带来的收入
can provide for the family fisherman for years. 足以维持一个渔民家庭几年的生活
These huge fish they used to swim to lay their eggs 这些巨型的鱼以前会游向
beyond Vienna. 比维也纳更远的上游产卵
Today,the journey of this giant it ends here 可是今天 这条巨无霸的旅程就在铁门峡谷结束
In 1970,it was built Derdap dam 1 1970年,铁门一号水坝建成
and the waters of the river were quenched at the Iron Gates. 铁门峡谷汹涌的流水得以平静下来
But is there a barrier on which the cod I can't get over it 不过欧洲鳇无法通过这道屏障
and if these giants who have been doing this for hundreds of years 如果这些可以生存一百年的巨无霸
they can't reach certain places spawning 到不了牠们的产卵地
the species may become extinct. 便可能绝种
The dam provides energy for two countries: 大坝为两个国家提供电力：
Romania and Serbia 罗马尼亚和塞尔维亚
17,000 people were displaced 17000人需要迁移到新的居所
when was the water transformed in a 150 km long lake. 为了将汹涌的急流变成长150公里的湖泊
From now on,the Danube flows slowly crossing the plains of Romania 现在 宽阔的多瑙河以缓慢的速度流过罗马尼亚平原
until after almost 3000 km 再过约3000公里
is finally approaching of the Black Sea 终于接近黑海了
Here,the river splits into 3 arms 多瑙河在这里分叉成三条主要分支
forming a huge Delta 以及无数水道 形成巨大的三角洲
The boundary between the shore and the sea is unclear. 陆地和海洋没有明显的边界
On the coast everything is ambiguous 岸边的一切若隐若现
and ships must be guided on a navigable canal. 船只需要海堤引导 进入可以航行的水道
The Danube always creates barriers and sandbanks. 但多瑙河不断冲积出新的浅滩和障碍物
A few years ago it was big here. 几年前还是海的地方
Today,they are just sandbanks 现在,可能是连绵的沙洲
17 million tons of sediment are brought to the Delta every year. 每年有7000万吨沉积物堆积在三角洲
Here is the Final 体积相当于10个大金字塔
for sediments and sand brought from the Alps. 来自阿尔卑斯山的砂砾碎石最后在这里沉积
But it is a real paradise for birds 这片新的土地是雀鸟的天堂
which is immediately occupied. 牠们迫不及待的进占
Thousands of birds breed here in gigantic colonies. 成千上万的雀鸟联群结队地在这里繁殖
Others start hunting here along the coast. 有些雀鸟以此作为沿岸猎食的基地
The birds are rummaging in the mud after worms and other small creatures. 涉禽低头寻找泥泞里的蠕虫和其他小生物
The shovels are looking for pieces of food in the water. 琵鹭在海水里扫来扫去 看看有没有零碎的食物
Thousands of rents they multiply in these colonies. 数以千计的燕鸥在拥挤的鸟岛繁殖
On the sandbanks and low islands 雀鸟在这些刚刚形成的沙洲和低洼小岛
they are safe from predators. 不会受到掠食者袭击
Not being threatened by foxes they can lay their eggs on the ground. 雀鸟不用担心有狐狸出没 可以在地上生蛋
The river brook it also multiplies here. 金眶鸻也在这里繁殖
The male does his best and attract hen 雄鸟竭尽所能地吸引
in the nest which he just built. 雌鸟过来牠的鸟巢
It's hard to tell what he actually did 很难看到牠实际做了什么
and the female is not impressed 雌鸟不觉得有什么特别
But it doesn't give up so easily. 不过牠不会轻易放弃
Isn't the female safe and hesitated for a moment 雌鸟拿不定主意 犹豫了一会儿
He is trying to seize the opportunity 雄鸟知道机会来了
It's starting to go awry. 牠趾高气昂的接近
Mating period in the Delta lasts until August 三角洲的繁殖季节一直持续到八月
when do many birds leave to spend the winter in Africa. 然后很多雀鸟会迁徙到非洲过冬
Until then,the Danube I offer them food and shelter 多瑙河口的湿地在牠们离开之前 提供食物和住所
But Danube does he have another wild face 可多瑙河还有另一种震撼和野性
Overnight,this river it can turn into hell 一夜之间 这条河可以变成险恶的地狱
In episode two,we'll see how life on this sea river 下一集 我们看看这条伟大河流的生物
is constantly challenged of unpredictable elements 如何受到变幻莫测的天气
of all seasons. 还有四季气候的持续挑战