Help identifying source of unusual clicks in Monterey Bay

To:	"" <>
Subject:	Help identifying source of unusual clicks in Monterey Bay
From:	Aguasonic Acoustics <>
Date:	Sat, 10 Sep 2016 19:35:30 +0000

Dear Bioacoustics,

The Smooth Ridge hydrophone [
http://www.mbari.org/underwater-microphone-provides-tantalizing-new-perspective-on-monterey-bay/
] picked up some pretty unusual clicks first couple of days of this
month.

Examples have been posted to:

https://aguasonic.com/files/MARS_20160902_UTC-13_s613745530_DSd-48ksps.mp3

https://aguasonic.com/files/MARS_20160902_UTC-14_s333314571_DSd-48ksps.mp3

https://aguasonic.com/files/MARS_20160902_UTC-23_s500368696_DSd-48ksps.mp3

Unlike most clicks we work with, these are actually very much
human-audible, center frequency around 1kHz. Lower than Cachalot even.
As such, I really have no idea what would be making clicks like these.

Has anyone seen/heard clicks like this before? Comments?

Sincerely,

Mark Fischer
~~~~~~~~~~~~~~~~~~~~~~
https://aguasonic.com/

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