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Synalpheus pinkfloydi, the Pink Floyd pistol shrimp, is a species of snapping shrimp in the genus Synalpheus. Described in 2017, it was named after the rock band Pink Floyd, in part because it has a distinctive "bright pink-red claw". [1] [2] The sound it makes by snapping the claw shut reaches 210 decibels, and can kill nearby small fish. [3]
It corresponds to a peak pressure level of 218 decibels relative to one micropascal (dB re 1 μPa), equivalent to a zero to peak source level of 190 dB re 1 μPa m. Au and Banks measured peak to peak source levels between 185 and 190 dB re 1 μPa m, depending on the size of the claw. [7] Similar values are reported by Ferguson and Cleary. [8]
The bigclaw snapping shrimp produces a loud, staccato concussive noise with its snapping claw. The sound is produced when the claw snaps shut at great speed creating a high-speed water jet. This creates a small, short-lived cavitation bubble and it is the immediate collapse of this bubble that creates the sound. [3] A spark is formed at the ...
This powerful sonic weapon creates a violent shock wave which can kill or knock out prey, which could be another shrimp or a small fish passing close to the tiger pistol shrimp. The sound emitted from the collapsing bubble can be up to 218 decibels, with a temperature of up to 4,800 degrees celsius, slightly cooler than the surface of the Sun.
Hearing range describes the frequency range that can be heard by humans or other animals, though it can also refer to the range of levels. The human range is commonly given as 20 to 20,000 Hz, although there is considerable variation between individuals, especially at high frequencies, and a gradual loss of sensitivity to higher frequencies ...
Alpheus deuteropus or the petroglyph shrimp is a snapper or pistol shrimp in the family Alpheidae. It lives on coral reefs in tropical parts of the Indian and Pacific Oceans and in the Red Sea, as a commensal of corals such as Porites lobata. Its presence among the lobes leaves tunnels, cracks and grooves in the surface. [2]
Alpheus digitalis is a species of pistol shrimp in the family Alpheidae. [1] [2] The species was first discovered after a taxonomic study of a snapping shrimp from the genus Alpheus from Japan and the Gulf of Thailand, of which, it was found that two species was confounded under A.digitalis, which was originally described based on a single specimen possessing abnormal chelipeds.
Alpheus astrinx, also known as the candy-stripe pistol prawn, is a rare species of snapping shrimp found around Australia and Papua New Guinea. [ 3 ] [ 4 ] [ 5 ] It has recent presence in the fossil record, having been recorded from 0.012 million years ago . [ 1 ]