Miniature Cyprinid Fish Can Produce Sounds over 140 dB, Ichthyologists Say
Feb 27, 2024 by News Staff
Danionella cerebrum, a translucent fish species of only 12 mm length, produces high amplitude sounds exceeding 140 dB (re. 1 µPa, at a distance of one body length) — comparable to a jet engine during take-off in 100 m distance.
Danionella cerebrum has a pair of extrinsic, indirect sonic muscles that house the drumming cartilage. When a sonic muscle contracts, the fifth rib is pulled anteriorly and builds tension as it pulls the cartilage. The sudden release of the cartilage causes it to rapidly strike the swim bladder, producing a short, loud pulse. A burst of pulses is generated with either bilaterally alternating or unilateral muscle contractions. In sum, this mechanism enables loud and stereotyped sounds that can be elicited in structured sequences, making it a unique solution for acoustic communication and ultrafast skeletal motion in vertebrates surpassing the limitation of muscle contraction speed. Image credit: Ralf Britz, Senckenberg Natural History Collections.
“The snapping shrimp can generate a popping sound of up to 250 dB with its claws,” said Dr. Ralf Britz, an ichthyologist at the Senckenberg Natural History Collections.
“The mating calls of the flightless kakapo reach 130 dB, and elephants can produce noise of up to 125 dB with their trunks.
“Fishes, on the other hand, are generally considered to be rather quiet members of the animal kingdom.”
“However, there are certain fish species that can be surprisingly loud. For example, the male plainfin midshipman fish attracts its females with an audible vibrato of around 100 Hz and 130 dB.”
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More:
https://www.sci.news/biology/danionella-cerebrum-sounds-12724.html
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