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A cicada sound...underwater?

To: "" <>
Subject: A cicada sound...underwater?
From: "Piercy, Julius J B" <>
Date: Mon, 24 Sep 2012 13:22:21 +0000
Dear all,

During some recent recordings in cenotes around the Yucatan peninsula (Mexico) 
using an omnidirectional hydrophone I picked up a sound very similar to that of 
a cicada...but underwater?? At the time I could hear no cicadas in the vicinity 
above the water surface.

One interesting but not very plausible possibility is that of a freshwater 
invertebrate producing these sounds- is anyone aware of any that may produce 
something similar to this?

Of course I do not exclude the possibility that it could also be a cicada in 
contact with the water in a nearby cenote (they are connected by underground 
tunnels), but the closest that I am aware of was around 200m away.

Are there any other suggestions/ideas?

Kind regards

Julius Piercy

PhD Marine Biology candidate
Department of Biological Sciences
University of Essex

Attachment: Cenote Cricket.mp3
Description: Cenote Cricket.mp3

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