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Scientists Listen to Coral to Learn About Its Health

时间：2022-06-14 05:20:27

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An international team of scientists is using artificial intelligence, or AI, to study the underwater sounds made by coral to learn more about the sea creatures.

Coral are very small animals that create huge rock-like structures, called reefs, in warm seawater.

The team of scientists listened to underwater sound recordings1 taken off islands in central Indonesia to learn.

They found coral reefs make many sounds and are full of animal and plant life. Scientists from British and Indonesian universities published their findings last month in Ecological2 Indicators3.

The researchers used hundreds of sound recordings to train a computer program to track the health of a coral reef by listening to it.

A healthy reef has a complex "crackling, campfire-like" sound. That is because of all the creatures living on and in it. The team's lead researcher, Ben Williams, said an unhealthy reef sounds desolate4.

The AI system gathers data like the frequency and loudness of sounds in the recordings. From that information, the AI system can find out about 92 percent of the time whether a reef is healthy or unhealthy, the study said.

The scientists hope the AI system will help conservation groups around the world track the health of coral reefs.

The researchers also hope to collect underwater recordings from reefs in Australia, Mexico and the Virgin5 Islands to help track the progress of projects to rebuild coral.

Scientists say coral reefs are being damaged by carbon gas emissions6. They say heat-trapping carbon gasses are warming ocean surfaces by .13 degrees every 10 years. They also say ocean acidity7 has increased 30 percent since the beginning of the industrial era. The Global Coral Reef Monitoring Network, a United Nations supported group, says 14 percent of coral around the world was lost between 2009 and 2018.

Coral reefs cover less than 1 percent of the ocean floor. But they support more than 25 percent of marine8 life, including turtles, fish and lobster9. Coral reefs are very important to the fishing industry.

Words in This Story

track— v. to follow something to find out more about it

crackling –n. a series of short, sharp noises

desolate — n. lacking people, plants or animals

frequency — n. the number of times a sound or radio wave is repeated in a period of time

conservation— n. the protection of animals, plants and natural resources

era — n. a period of time that is linked to a particular event


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1 recordings 22f9946cd05973582e73e4e3c0239bb7     
n.记录( recording的名词复数 )；录音；录像；唱片
参考例句：
  • a boxed set of original recordings 一套盒装原声录音带
  • old jazz recordings reissued on CD 以激光唱片重新发行的老爵士乐
2 ecological IrRxX     
adj.生态的，生态学的
参考例句：
  • The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
  • Each animal has its ecological niche.每种动物都有自己的生态位.
3 indicators f46872fc1b5f08e9d32bd107be1df829     
（仪器上显示温度、压力、耗油量等的）指针( indicator的名词复数 )； 指示物； （车辆上的）转弯指示灯； 指示信号
参考例句：
  • The economic indicators are better than expected. 经济指标比预期的好。
  • It is still difficult to develop indicators for many concepts used in social science. 为社会科学领域的许多概念确立一个指标仍然很难。
4 desolate vmizO     
adj.荒凉的，荒芜的；孤独的，凄凉的；v.使荒芜，使孤寂
参考例句：
  • The city was burned into a desolate waste.那座城市被烧成一片废墟。
  • We all felt absolutely desolate when she left.她走后，我们都觉得万分孤寂。
5 virgin phPwj     
n.处女，未婚女子；adj.未经使用的；未经开发的
参考例句：
  • Have you ever been to a virgin forest?你去过原始森林吗？
  • There are vast expanses of virgin land in the remote regions.在边远地区有大片大片未开垦的土地。
6 emissions 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 )； 散发物（尤指气体）
参考例句：
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
7 acidity rJyya     
n.酸度，酸性
参考例句：
  • This plant prefers alkaline soil,though it will readily tolerate some acidity.这种植物在酸性土壤中也能生存，但硷性土壤更加适宜。
  • Gastric acidity would not prevent the organism from passing into the gut.胃的酸度不能防止细菌进入肠道。
8 marine 77Izo     
adj.海的；海生的；航海的；海事的；n.水兵
参考例句：
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。
9 lobster w8Yzm     
n.龙虾，龙虾肉
参考例句：
  • The lobster is a shellfish.龙虾是水生贝壳动物。
  • I like lobster but it does not like me.我喜欢吃龙虾，但它不适宜于我的健康。

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