Algal blooms occur in nature, but this year, the high levels of toxins led to record poisoning.

藻类在自然界中会大量繁殖，但今年，高水平的毒素导致了创纪录的中毒事件。

When algae grows densely and out of control, it's called an algal bloom.

当藻类生长密集且无法控制的时候就会产生水华现象。

It's probably from strong winds sweeping over algal blooms, but we don't know.

可能是强风卷过藻华造成的，但我们不确定。

Right now, nitrification, overuse of phosphates in our waterways are causing tremendous algal blooms.

如今，水体中过量的氮和磷 导致藻类疯长。

This led to algal blooms that resulted in bacterial proliferation, which caused a drop of oxygen.

这导致藻华，继而致使细菌繁殖，最终使氧气量下降。

Too many nutrients in the water leads to poor water quality by causing hazardous algal blooms.

水里如果营养物太多，水质救护很差，因为会产生具有危害性的藻类繁殖。

An algal bloom has reduced the output of salmon farms in Chile, the world's second-biggest producer, unnerving investors.

世界第二大三文鱼出产国智利由于海藻过于茂盛，导致产量下降，很多投资者因此紧张不安。

Rose said this is a bad sign because it points to increased algal blooms — the sudden growth of algae.

罗斯说，这是一个不好的迹象，因为这意味着藻类的激增--藻类突然增多。

This is what happens when the nitrogen moves into water streams, pollutes lakes, triggers algal blooms and creates another Green Revolution.

氮排入水源就会发生这种情况，污染湖泊，让水藻泛滥，引发另一场“绿色革命”。

But warmer temperatures do encourage the growth of algae and algal blooms, and that can come with a potentially deadly threat.

但温暖的气候确实会促进藻类的生长和藻类的大量繁殖，这可能会带来潜在的致命威胁。

Wildlife officials said that toxic algal blooms in drinking holes caused the previously unexplained deaths of more than 300 elephants in Botswana in recent months.

野生动物官员称，近几个月，水坑里的有毒藻类大量繁殖，导致博茨瓦纳300多头大象离奇死亡。

These are the largest harmful algal blooms on our planet.

这些是我们星球上最大的有害藻华。

This is a toxic blue-green algal bloom and it is not good for you.

这是一种有毒的蓝绿色藻华，对您不利。

And we know that harmful algal blooms can be deadly.

我们知道有害的藻华可能 是致命的。

When an early-summer algal bloom developed on Detroit Lake near Salem this May, state and city officials knew exactly what tests to run and advisories to issue.

今年5月，塞勒姆附近的底特律湖出现了初夏的藻华，当时州政府和市政府官员清楚地知道应该进行哪些测试，发布哪些建议。

This actually happens all the time, in events known as harmful algal blooms.

这实际上一直在发生，在 被称为有害藻华的事件中。

" We might be able to, you know, figure out 'is it a virus? ' 'Is it, ' you know, 'a ship strike? ' 'Is it a harmful algal bloom? '"

" 我们可能会发现一些原因，也许是病毒？或者是撞船？或是有害藻类？"

At the same time, Senator Olympia Snowe from Maine was having trouble with harmful algal blooms in the Gulf of Maine.

与此同时，来自缅因州的参议员奥林匹亚·斯诺 (Olympia Snowe) 在缅因湾遇到了有害藻类大量繁殖的问题。

So a major influx of phosphorus into the oceans would have caused an explosion of marine plants, in the form of huge algal blooms.

因此，大量磷流入海洋会导致海洋植物以巨大的藻类大量繁殖的形式爆发。

When a bunch of iron is dumped into this ocean system, it can wreak havoc on marine life, by creating a harmful algal bloom.

当一堆铁被倾倒到这个海洋系统中时，它会造成有害的藻类大量繁殖， 从而对海洋生物造成严重破坏。