大量海藻以破纪录的速度繁殖,向佛罗里达海滩进发

Masses of seaweed multiplying at record-breaking levels and heading for Florida’s beaches 
Giant masses of seaweed are multiplying at record-breaking levels and are beginning to stack up along Florida’s shorelines. NBC News’ Sam Brock travels out to sea with researchers studying the unprecedented seaweed growth.
2023.4.30
tags: 新闻 环境 自然
内容
  • 英中
  • 中英
  • 盲听
  • 1

    It's just after daybreak. - Okay I'm permission to come aboard.

  • 2

    And researchers from the sea Education Association and Eckerd College, are leaving this south Florida marina on a critical mission.

  • 3

    To search for the giant masses of seaweed, multiplying it record-breaking levels, and barreling right for Florida's beaches.

  • 4

    As we head to sea, we start to see clumps of it, the team wants to scoop up some of this latest wave, called sargassum, moving in patches so large they're visible by satellite and almost twice the width of the continental U.S.

  • 5

    What are you trying to accomplish by coming out here? - Well we're trying to understand why these blooms are occurring in the first place, and we think it has something to do with the fact that not all sargassum is the same.

  • 6

    The seaweed is already invading hot spots, from the Keys to Miami beach, creating an increasingly ugly and nasty smelling mess.

  • 7

    What we've already witnessed on the shores of Florida? Is that the tip of the iceberg? - I think it's just beginning, we probably have months worth of that coming.

  • 8

    Researchers still don't know what exactly is fueling this unprecedented growth.

  • 9

    But to get answers, they're collecting three different types. - These are some of the best clumps we've had all day.

  • 10

    And measuring factors like salt content. - This looks great, it's 37.9 parts per thousand, and 26.5 celsius.

  • 11

    Water temperature and other conditions that might explain why it's exploded in size to 13 million tons of the algae.

  • 12

    Right now, we're about six miles offshore from Florida, look over my shoulder right now, at just blankets of sargassum in fact, no matter which direction we look, it's all over here.

  • 13

    But where we are, the sargassum barely even registers on satellites, but if you look further south and east all those blues and reds and greens are substantially larger patches, moving this way, back on land,

  • 14

    Vacationers bracing for what's to come. - You don't like to walk through it, and when it's past your ankle, it gets really creepy. - It looks gross, it's really unattractive.

  • 15

    Researchers like Jeff Schell and Amy Siuda point out that sargassum may create a rotting smell and eyesore on land.

  • 16

    There's some shrimp running around, so they're the same color as the sargassum itself.

  • 17

    But in the ocean, it's a vital component of the ecosystem, supporting life like this frog fish, and offering an oasis for organisms.

  • 18

    I fell in love with sargassum, because of the fish and the shrimp and the crabs, it's the only natural floating ecosystem on the planet.

  • 19

    We'll be changing the water in each of these jars. - Now all these samples are being examined in a race of science versus nature.

  • 20

    That windrow of sargassum extends for miles in both directions, if that windrow is aimed at a beach, that's a game over, like that sargassum is going to start burying the beach like that.

  • 21

    Ultimately the team hoping to unlock some clues to a deepening maritime mystery, Sam Brock, NBC News, Dania Beach Florida.

  • 1

    此时正在黎明破晓时分。 - 好了,我获准上船了。

  • 2

    来自海洋教育协会和埃克德学院的研究人员,将离开南佛罗里达州的这个码头,执行一项重要任务。

  • 3

    他们是去寻找巨大的海藻群,这群海藻繁殖数量到了破纪录的水平,然后涌向佛罗里达海滩。

  • 4

    当我们驶向大海时,我们开始看到它的团块,研究小组舀起一些浪尖的海水,其中的藻类称为褐海藻(马尾藻属藻类),它们在卫星上可见,海藻群(横跨5000多英里)几乎是美国大陆宽度的两倍。

  • 5

    你来这里想要达到什么目的? - 我们试图了解为什么首先会发生这些藻华,我们认为这与一些事实有关,并非所有的马尾藻都是一样的。

  • 6

    海藻已经侵入了从佛罗里达岛链到迈阿密海滩的热点地区,造成了越来越恶心和难闻的气味。

  • 7

    我们在佛罗里达海岸已经看到了什么?这只是冰山一角吗? - 我认为这才刚刚开始,我们可能还需要几个月的时间。

  • 8

    研究人员仍然不知道究竟是什么助推了这种前所未有的增长。

  • 9

    但为了得到答案,他们收集了三种不同的(海藻)类型。 - 这是我们今天见到的最好看的一团。

  • 10

    并测量了盐分含量等因素。 - 看起来不错,(含盐量)37.9/‰,温度26.5℃。

  • 11

    水温和其他条件可能解释了为什么藻类群的规模爆发至1300万吨。

  • 12

    现在,我们离佛罗里达离岸大约六英里,现在看看我肩膀后面,看到的实际上是褐海藻(马尾藻属藻类),不管我们朝哪个方向看,都是这玩意儿。

  • 13

    但在我们现在所处的地方,卫星上几乎看不到这海藻斑块,但如果你再往南和东看,所有那些蓝色、红色和绿色的都是更大的藻类斑块,它们朝这个方向移动,涌回岸边。

  • 14

    海滩度假者们在为即将来袭的(藻类)做准备。 - 你不喜欢走过这些海藻,当它超过你的脚踝时,它会变得非常令人毛骨悚然。 - 看起来很恶心,真的不吸引人。

  • 15

    杰夫·谢尔和艾米·苏达等研究人员指出,马尾藻可能会在岸边产生腐烂的气味并很碍眼。

  • 16

    有一些虾在周围游动,所以它们和马尾藻本身的颜色一样。

  • 17

    但在海洋中,它(藻类)是生态系统的重要组成部,支持像躄鱼科这样的生命,为其提供绿洲。

  • 18

    我喜欢这些(正经的)藻类,因为鱼,虾和蟹(需要这环境),它是地球上唯一的自然漂浮生态系统。

  • 19

    我们要换这些罐子里的水。 - 现在,所有这些样本都在一场科学与自然的竞赛中被检验。

  • 20

    海藻堆在两个方向延伸数英里,如果海藻堆的目标就是海滩,那就完蛋了,海藻会像这样埋掉海滩。

  • 21

    最终,科考队希望能解开一些线索,解开一个日益加深的海洋之谜,山姆·布洛克,NBC新闻,佛罗里达州达尼亚海滩报道。