nosie pollution underwater

 

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海上航運及探測船的增加,造成嚴重海洋噪音污染,影響到海洋生物遷徙、繁殖及溝通等。探測船會用空氣槍發出震波來找尋石油,每槍都在水裡製造達260水下分貝的噪音。因海底的密度比空氣大,所以聲音會比在陸上傳得更快更遠。各種海洋生物像鯨魚、海豚,甚至浮游動物都受到影響。浮游動物是很多海洋生物的主要食糧,2017年已有研究發現每一下震波都會殺死大量浮游動物,一小時就殺死受影響範圍內約三分之二的浮游動物。

the increasing number of ship traffic and seismic survey is creating serious noise pollution to the ocean, and affecting migration, reproduction and communications of marine creatures. seismic air guns are used for finding oil and gas deep under the ocean floor. each of these seismic shot creates noise that is up to 260 underwater decibels; as water is much denser than air, the sounds underwater can travel faster and farther than on land. marine creatures like whales, dolphin and even plankton are all affected. plankton is an important food source for many marine creatures; a study in 2017 found that each and every seismic shot could kills large amount of plankton, killing around 2/3 of the plankton in the affected area.

 

https://economictimes.indiatimes.com/news/environment/global-warming/even-oceans-are-getting-louder-posing-threats-to-marine-life/articleshow/67735120.cms

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