(单词翻译:单击)
The West Coast of the United States was once teeming with salmon populations from Baja California to Alaska.
从下加利福尼亚到阿拉斯加，美国西海岸曾经盛产鲑鱼。
75 years ago, up to 400,000 coho salmon would return to spawn in California streams.
75年前，多达40万条银鲑鱼将返回加州溪流产卵。
But in the last 20 years, those numbers have dropped to as low as 3000 in the 1990s, and we sometimes less than 1000.
但在过去的20年里，这一数字在90年代下降到3000，而现在有时还不到1000。
These fish are not only an incredible symbol of the region, they're also an important indicator for the health of their entire ecosystem.
这些鱼不仅是这个地区令人难以置信的象征，也是整个生态系统健康状况的重要指标。
Now, in order to save them from the brink of extinction, a group of experts devised a fish matchmaking service of sorts, complete with DNA profiles and tiny barcodes.
现在，为了把它们从灭绝的边缘拯救出来，一群专家设计了一种鱼类配对服务，包括DNA图谱和微小的条形码。
Coho are a real iconic species, well salmon in general, are iconic species of California and the Pacific Northwest and California has some of the most southern populations of salmon and steelhead in the United States.
银鲑鱼是一个真正的标志性物种，一般来说，它们是加利福尼亚州和太平洋西北部的标志性物种，加利福尼亚州拥有美国最南部的鲑鱼和虹鳟鱼种群。
They are kind of an indicator of water quality and habitat availability, not just for themselves but for all animals and plants that rely on these coastal watersheds in California.
它们是一种水质和栖息地可用性的指标，不仅对它们本身，而且对所有依赖加州沿海流域的动植物也是如此。
But for such an important species, the human race hasn't been too kind to them, there has been a long history of land management practices that have been really harmful to them over the years we've built dams that have blocked them from a lot of their historical habitat.
但是对于这样一个重要的物种，人类并没有对它们太好。长期以来的土地管理方式对它们确实有害，这些年来我们修建了水坝，把它们挡在了很多历史栖息地之外。
We're diverting water that they need to survive in the summertime and a lot of watersheds.
我们正在转移它们在夏季生存所需的水和分水岭。
There's kind of a laundry list of things insults that have been foisted upon them over the last hundred years.
在过去的100多年里，人类做了许多伤害它们的事情。
Part of what has made salmon such an icon for California is that they're ridiculously heart animal.
鲑鱼之所以成为加州的标志，部分原因在于它们的行为有些荒谬。
Starting their lives in a river, they can migrate more than 1000 miles to the ocean, only to return all the way back to their home river, about a year and a half later.
它们在一条河流里出生，然后会迁移到1000多英里远的海洋中，但是一年半之后，他们却一路返回家乡的河流。
They survive predators from bears to sharks to fishermen and shift easily from freshwater to saltwater, warm coastal waters to the frigid ocean.
它们逃过了熊、鲨鱼、渔民这些捕食者的捕食，轻而易举地从淡水转移到海水，从温暖的沿海水域转移到寒冷的海洋。
It's only with these more recent land management practices and overfishing that they've lost such substantial numbers.
仅仅是因为最近的土地管理和过度捕捞，它们才失去了这么多。
And here in Northern California coho salmon populations have dropped to a dangerous level.
而在北加州，银鲑鱼的数量已经下降到了危险水平。
So now the fight is on not only to increase their numbers, but ensure they're healthy and strong enough to make the annual journey to and from the Pacific Ocean.
因此，现在的目标不仅是为了增加它们的数量，而且要确保它们健康强壮，能够每年往返于太平洋。
And to do this, many groups from around the state came together to help with an innovative breeding program sequencing salmon DNA.
为了做到这一点，来自该州各地的许多组织聚集在一起，帮助实施了一项创新的鲑鱼DNA测序计划。
We're collecting DNA from them so that we can sequence their DNA and create a profile for each individual, and then every individual in the population will be kind of stacked up against each other.
我们从它们身上收集DNA，这样我们就可以对他们的DNA进行测序，并为每条鱼建立个人档案，每一条鱼的信息都会相互堆叠起来。
We're going to be looking to help breed the males and females that are most distantly related to maximize the amount of outbreeding and genetic diversity in the population.
我们将寻求帮助，以繁殖它们中最远亲的雄性和雌性，最大限度地扩大远缘繁殖的数量和种群中的遗传多样性。
So, picture an online dating website crossed with a DNA sequencing service, but you know, for fish.
想象一下一个在线交友网站和一个DNA测序服务交叉，但这是鱼类的“在线相亲”。
And it all starts with a collecting expedition.
一切都是从一次收集探险开始的。
In this project, once the wild fish had been born in the watershed, and they're probably around ... Yeah, they're about six or seven months old.
在这个项目中，一旦野生鱼在分水岭出生，它们大概六、七个月大。
We're going out and looking for those fish and capturing some portion of the young wild fish that are out there, and bringing them into the hatchery.
我们要出去寻找那些鱼，捕捉一些野生小鱼，然后把它们带到孵化所。
