蓝色星球（2001）

and proteins shed into the water by the panicked mackerel.
发出的蛋白质与脂肪的气味
The trail leads both the shark
气味引领鲨鱼
and its attendant pilot fish towards an easy meal.
及它的领航鱼前来捡便宜
Scraps and casualties float
碎片及鱼尸
in the wake of the passing mackerel school
浮在鲭鱼群四周
Throughout the ocean, predators and prey are locked
在海洋中猎食者及猎物
in a deadly three-dimensional contest of hide and seek
紧紧被锁在一个死亡的 三度空间捉迷藏游戏中
played out over immense distances.
游戏的范围十分广大
To survive they must travel.
若要存活则必须迁徙
The huge four metre long blue-fin tuna
4公尺长的巨大蓝鳍鲔
has special blood vessels that enable it
身上有特殊的血管
to keep its body temperature significantly warmer than the surrounding water.
让它的体温可以保持在 比周身海水较高的温度
As a result, they can survive in much colder conditions
所以它们可以在 比较寒冷的条件下生存
than any other tuna and they travel thousands of
它们会离开
miles away from their spawning grounds
在热带的出生地
in the tropics to hunt in cold seas
旅行到数千英里以外
where the food supply is richest.
食物最丰饶的冷水域
Ocean travellers come in many guises
海洋中的旅行者有许多
and few are stranger than this...
但是没有几个比它古怪
crab that spends much of its life afloat.
一只大半辈子都漂浮着的螃蟹
lt is a worrying passer-by for booby birds with delicate toes.
对于有着细致脚指的鲣鸟来说 它可是个大♥麻♥烦
Many floaters are little more than jelly,
漂浮动物不只是水母
enclosed in membranes, but they may drift for vast distances.
它们包在薄膜里 可以漂流极遥远的距离
And turtles, like these olive ridleys, migrate thousands of miles every year.
而乌龟们，像这只榄绿蠵龟 每年迁徙数千英里
The ocean is full of such wanderers,
大海中充满了这些漫游者
riding the currents, and doing their best
乘着洋流，尽力躲避敌人
to avoid enemies while they search for food
同时寻找食物
and a safe place to breed...
及一个合适的生育地点
Which is exactly what these rays are doing
这也是这些魟鱼正在做的事
forming the twomilehighclub,
组成一个两英里长的团队
gathering together for courtship on the wing,
为了求爱一起聚在
far above the ocean floor.
离海床遥远的这里
More nomads - flying fish.
其他的游牧民族-飞鱼
They seem to be on every large predator's menu,
列在所有大型 肉食动物的菜单上
so their whole life is spent on the run in the open ocean.
所以它们一辈子 都花在海中逃命
They don't scatter their eggs
它们不将卵打散
but lay them on pieces of flotsam like this palm frond.
而是将之产在漂浮物上
lf the quality of water is right,
就像这片棕榄叶
they will attach their eggs to the frond,
如果水质适合 它们就会将卵附着在棕榄叶上
which will then serve as a kind of life-raft for their offspring.
棕榄叶就变成 它们后代的救生筏
But it's not only flying fish that seek nurseries.
寻求看护的不只是飞鱼
Any piece of floating debris can serve as a shelter under which baby fish can hide
任何一片海上的漂浮物 对小鱼来说都是遮蔽
The only draw back, is that predators
唯一的坏处是有些猎食者 例如这只刺鰆鱼
like this wahoo always check up on
会查看是否有猎物
who's hanging about in the shadows.
躲在阴影底下
The wahoo may trail the flotsam for weeks.
刺鰆鱼会尾随漂浮物好几星期
Few bits of flotsam are without their
很少有漂浮物没有生物寄居
quota of lodgers - even man-made junk attracts them.
就连人造的垃圾 都会吸引它们前来
And some, like this oceanic trigger fish,
有些鱼类 例如这只炮弹鱼
defend their squatters rights with vigour
猛烈抵抗入侵者
The triggers, in fact, tend to claim all the prime residences.
炮弹鱼事实上 会霸占所有的栖息地
Out here, even discarded netting can provide
在这里，就连废弃的渔网
valuable shelter, so
都可以提供有用的栖居地
in a bizarre twist
这一团纠结
a wrecked trawl net like this can end up as a sanctuary for fish
其实是废弃的拖网 在真正下沉海底前
until such time as it finally sinks.
可以是许多鱼类的避难所
lndeed, a single large piece of flotsam
事实上 一片大的漂浮物可以是
can be the reason why several square miles of open ocean,
这一片荒芜 好几平方英里的远洋
instead of being empty, will support a fish population of hundreds of tonnes.
居然可以供养 数百公吨♥鱼群的主因
This huge clump of seaweed is doing exactly that.
正如这片巨大的海草
lt is a giant kelp plant, ripped from the rocks off the coast of California.
它是巨藻类的海草 从加州海岸的岩石上剥离
Now, it's floating above thousands of metres of water,
现在它靠着充满空气的气囊
held up by its gas filled floats.
悬浮在数千公尺深的海上
Clouds of young rockfish are growing up in the safety of its shadow.
一群小魔鬼蓑 靠着它的庇荫成长
Giants also seek out this algal flotsam.
也有大鱼来到这片悬浮海草
This is a sunfish.
这是翻车鱼
lt can measure as much as four metres from fin-tip to fin-tip.
它的两翼张开距离可达4公尺
Rather surprisingly, it has the record as the heaviest bony fish in the sea.
但是出人意料地 它也是海中最重的有骨鱼
Sunfish spend much of their time at depth where they feed on jellyfish;
翻车鱼大部分活在深海中 以水母为食
but it is cold and dark down there so from time to time,
但是深海又黑又冷
they seek a little rest and recuperation and warm up near the surface.
所以它们偶而会偷闲 到靠近水面的地方让身体回暖
They too are looking for floating kelp plants.
它们也在找寻漂浮的海草
Not for shelter but because here they
不是为了寻找庇护
can find a particular kind of fish that only lives in such places.
而是找寻一种别处没有的鱼
Half moon fish.
半月鱼
The sunfish form up in an orderly queue.
翻车鱼排好队形
They have a problem.
它们身上有毛病
Their skin is covered in parasites.
寄生虫布满全身
The hungry half-moons will help.
而饥饿的半月鱼可以帮它们
The sunfish turn their heads towards
翻车鱼会将头部转向水面
the surface as a clear invitation to their personal hygienists.
明示邀请专属的清洁专家上工
The half-moons nip off - and eat
半月鱼开始工作
every parasite they can find.
吃下所有找得到的寄生虫
lf the half moons don't do the job
如果半月鱼无法办到
there is another rather drastic treatment available here.
这里也有更激烈的方式
Gulls rest on the floating kelp.
栖息在漂浮物上的海鸥
And if the sunfish send the right signals...
如果翻车鱼发出邀请
the gulls will investigate.
海鸥就会出动
Their beaks can dig out the most stubborn parasites.
它们的喙可以 啄下最顽强的寄生虫
But even the very best of health clinics can only trade on a temporary basis.
即使最好的健康中心 也只能做短暂交易
The seaweed rafts are rotting
这片海草不断在腐烂
and will eventually lose their buoyancy.
最后终将失去浮力
Then their lodgers will have to find a new home.
所有的寄居者 都必须另觅新居
lf they can't, they will be eaten,
如果找不到 就会被吃掉
or die and sink down into the abyss.
或死去，尸体沉入深海底
But the open ocean is not entirely devoid of permanent shelter.
但是远洋中 其实不乏永久栖息地
A volcano is erupting from the seafloor and it is still growing.
一座火山在海床上爆发 而且还在成长之中
lt has formed an island some seventy miles from the coast of New Zealand.
它在新西兰海岸 70英里远处形成小岛
Some juvenile reef fish have already arrived,
有些珊瑚礁鱼群的幼鱼
carried here by a lucky current.
已被一条幸运的洋流领至此处
Now they are growing up in the shelter of
现正在岛岸边成长的
the weeds growing around the island's fringes.
海草的庇荫之下成长
More plankton and juvenile fish
有更多的浮游生物 及幼鱼
are being swept by currents straight towards the island.
被洋流带到小岛上
But now there is a welcoming committee.
现在有支欢迎队伍在等着了
Schools of trevally and blue maomao
几群鲹鱼及蓝帽
are patrolling the surface water.
正在水面附近巡逻
All are in search of a meal.
它们都在找东西吃
These one kilo fish snap up every morsel of plankton they find.
这些一公斤重的鱼 吃尽所有的浮游生物
At times, the currents sweeping in from
有时候从远洋中 流过来的洋流
the open ocean bring with them all kinds of small creatures in dense concentrations
会带来许多各式各样的小动物
These are mysid shrimps.
这些是酱虾
Very little that is edible is left after such feasts.
在这样的捕食行动过后 可食物质所剩不多
lslands are far from being safe havens for plankton.
小岛不是浮游生物的安全之地
The Pacific Ocean, however,
太平洋中
is peppered with over twenty three thousand...
有超过2万3千个岛
slands as well as countless other submerged mountains
还有其他数不清
sea mounts whose summits do not break the surface.
顶端不露出水面的海洋山脉
Juvenile fish, for their first few months
幼鱼在出生的数个月
would do well to avoid such places.
如果能避开这里 就能顺利生长
These yellow-fin tuna, however,
这些黄鳍鲔
are now more than six months old and forty centimetres long
现在已经超过六个月大 身长到了40公分
big enough to be able to eat fry,
已经大到可以吃小鱼苗
so sea mounts for them are promising
所以海洋山脉对它们来说
feeding grounds where they may hunt for several months.
是很好的进食场所 它们可能会在这里
The base of a seamount.
待上好几个月
As currents sweep towards it they are deflected up its towering walls.
海中洋流打中海洋山脉的底部时 会顺着山脉向上折流
The water, coming from the depths,
来自深海的海水
carries both nutrients and plankton to the surface.
将浮游生物及养分带到水面
Numerous reef fish take up permanent residence here,
为数众多的珊瑚礁鱼群 在此定居