Tiny fish as loud as a pneumatic drill 研究人員發現一種小魚發出的聲響音量堪比風鉆

德國柏林的科學傢們發現，一種透明小魚發出的聲音和風鉆的音量一樣響。

This buzzing, chirping sound is the pulsing chatter of the tiny transparent Danionella cerebrum as heard by the human ear. Researchers in Germany were intrigued by the noise coming from the fish tanks in their lab and decided to investigate the source. Using underwater microphones, they quickly deduced that this species was no small fry when it came to communication.

你聽到的這種嗡嗡的嘰喳聲是一種學名為 “Danionella cerebrum” 的透明小魚的脈沖聲。德國的研究人員們偶然聽到瞭從實驗室的魚缸中發出的噪音，對此很感興趣，所以決定找出這個噪音的來源。通過利用水下麥克風，研究人員很快就推斷出，就交流方式而言，這個魚類物種絕不可小覷。

This is the slowed down sound booming out like a heartbeat. The fish uses its muscles to strike its own swim bladder to produce a short loud sonic pulse. In the waters close to the fish, it taps out 140 decibels, which is as loud as a gunshot.

這段經調慢處理後的音頻播放的是這種透明小魚發出的像心跳一樣低沉有力的聲音。它們牽動自身肌肉沖擊體內的魚鰾，從而發出一個短暫而響亮的聲波脈沖。在靠近這種透明小魚的水域內，可以探測到它們發出高達 140 分貝的聲音，如槍聲一樣響亮。

Researchers believe this quirky communication behaviour evolved in the murky streams in Myanmar, where the fish lives. Other fish, including the Plainfin Midshipman, and the Black Drum are louder, but also much bigger creatures.

研究人員們認為這種奇特的交流行為是在緬甸渾濁的溪流中進化得來的，那裡是它們的棲息地。其它魚類，包括斑光蟾魚和多須石首魚發出的聲音更響亮，但它們的體型也更大。