八点最热报 | 为了拯救加州海洋里的海藻森林，不要让紫海胆继续破坏海洋的生态平衡，有环保组织就在当地开展了“试点计划”，让志愿者潜入海里，动用小锤子来除掉海胆，和在海洋中横行霸道的紫海胆对抗。（主播：梁宝仪）
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00:10 The ocean in California, the United States, is in a sea of disasters.
00:13 It is also being listed as a target that must be eliminated.
00:16 Because growing purple seabed in the local area has become the main cause of ecological disasters,
00:20 the nation's largest enemy, the sunfish, has suddenly reduced its number of infections.
00:26 As a result, the number of seabed mutated,
00:30 devouring more than 90% of the seabed,
00:34 while other marine life is also harmed.
00:37 As a result, purple seabed is the only animal left in the local sea,
00:40 a species of pterosaur.
00:43 In order to save the seaweed forest in the California ocean,
00:47 and to prevent the purple seabed from continuing to destroy the ecological balance of the ocean,
00:50 an environmental organization has launched a pilot program in the local area,
00:53 allowing volunteers to dive into the sea
00:55 and eliminate the seabed in a very simple and crude way.
00:59 Let's follow the camera to see how the local volunteers
01:02 fight against the overbearing purple seabed in the ocean.
01:07 Two divers with oxygen masks,
01:11 handkerchiefs, and all-weapons walk into the sea
01:14 to prepare for their special mission,
01:16 which is to break the purple seabed with a hammer.
01:20 Don't think they are doing damage.
01:24 On the contrary, they are taking action to protect the marine ecosystem
01:28 on the north coast of California.
01:31 In order to save the seabed forest that is disappearing day by day in California,
01:34 the environmental organization has to mobilize people
01:36 to break the purple seabed that is spreading in large numbers,
01:39 to prevent the seabed and other marine creatures from being oppressed.
01:43 What you used to look out on this coast and see
01:45 was just this incredibly dense, beautiful kelp
01:49 that hosted up to a thousand different species.
01:53 And now when you swim under the water here,
01:55 what you're seeing is basically a big parking lot
01:58 and it's just covered in urchins as far as the eye can see.
02:02 In the vast ocean,
02:04 it seems like it's very easy to break the purple seabed with human power.
02:08 But in the past two years,
02:10 with endless efforts, it's starting to take effect.
02:13 The local organization said
02:15 that they have now successfully reduced the number of seabed by 80%.
02:18 At present, in this area,
02:20 there are only less than two seabeds per square meter.
02:23 Other marine creatures are also reappearing in the sea.
02:26 When we started, there was nothing but rocks and urchins.
02:29 It was barren, and now it's beautiful.
02:31 It's almost like it used to be.
02:34 So there's kelp everywhere, there's fish everywhere.
02:37 But biologists know that
02:39 it's not long before they can break these purple seabeds with human power.
02:43 So they are also in the local aquarium
02:45 to re-cultivate the natural enemy of the purple seabed,
02:48 the Sunset Sea Star.
02:49 Hopefully one day, the Sunset Sea Star
02:51 will be able to return to the sea
02:53 to protect this seaweed forest.
02:55 [music]
03:00 [silence]