Chris Watson, sound recordist and longstanding collaborator of David Attenborough, hosted a fascinating workshop at Berry Head Quarry, Brixham in September. With a storm raging outside we gathered in the Artillery Store for Chris’ introduction to sound recording and the acoustic world of the ocean. (As a novice sound recordist I had my Zoom H4n handy recorder with me, eager to pick up some tips). During a brief break in the weather we walked down to the Quarry Quay and Chris showed us how to set up the hydrophone (underwater microphone) equipment with plastic bottle floats, canes as fishing rods and cable lines – literally fishing for sounds. With a speaker set up under an umbrella, we could clearly hear the pistol shrimps (or snapping shrimps)
Pistol shrimps are common throughout the world’s oceans, and their sounds are the background fuzz of the underwater soundscape around any shoreline. The snapping sound is made by the implosion of an air bubble produced by the shrimp’s powerful claw, in order to stun their prey.