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World Oceans Passive Acoustic Monitoring Day

Scientists all around the world participated in a global study of aquatic sound on June 8th, 2023. Underwater sound recordings from over 250 sites all over the world will be shared to create a snapshot of the cacophony of noises generated by wildlife and humans.

Scroll over the sites marked with stars to hear some of the interesting sounds that have already been submitted from the study!

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Blue whale (Balaenoptera musculus)
   






D call

sounds have been filtered and amplified for hearing, but may require headphones and volume turned up, as the calls are very low frequency

recorded by Will Oestreich and John Ryan with MBARI & SanctSound

00:00 / 00:11
00:00 / 00:09

Silver perch (Bairdiella chrysoura)
   

chorus
read more


chirp
read more
recorded by Eric Montie at University of South Carolina Beaufort

00:00 / 00:03
00:00 / 00:04

Atlantic croaker (Micropogonias undulatus)




knocks
read more 

recorded by Eric Montie at University of South Carolina Beaufort

00:00 / 00:08

Spotted trout (Cynoscion nebulosus)



chorus
read more

recorded by Eric Montie at University of South Carolina Beaufort

00:00 / 00:10

Oyster toadfish (Opsanus tau)



boat whistle
read more

recorded by Eric Montie at University of South Carolina Beaufort

00:00 / 00:05

Unidentified water bug (Order Hemiptera)

.
buzz train
recorded by Xavier Raick at University of Liège

00:00 / 00:07

Bottlenose dolphin (Tursiops truncatus)

 .
Bray sounds- grunts or gulps
 read more
recorded by Susanna Quer at Marine Directorate, Science Evidence and Data Division

00:00 / 00:04

Unknown reef animal




 harmonic tonal call

recorded by Michelle Schärer-Umpierre at HJR Reefscaping

00:00 / 00:02

Nassau grouper (Epinephelus striatus)




agonistic call - repeated pulses

recorded by Michelle Schärer-Umpierre at HJR Reefscaping

00:00 / 00:04

Bomb fishing



echoing blast

 bomb fishing is illegal but still employed in certain regions, read more about the current state of the practice
recorded by Ben Williams at University College London

00:00 / 00:03

Unknown sounds



rattle



 creaking

recorded by Lucille Chapuis at La Trobe University

00:00 / 00:17
00:00 / 00:11

Unknown reef fish

.
series of downswept tonal grunts
.

pulse train
recorded by Aran Mooney at WHOI Sensory Ecology and Bioacoustics Lab

00:00 / 00:04
00:00 / 00:02

Rioja tree frog (Boana riojana)





modulated call with 2 notes (recorded underwater)

recorded by Martin Boulhesen at Instituto de Ecorregiones Andinas, UNJu-CONICET

00:00 / 00:01
00:00 / 00:01

Echosounder



pinging

recorded by Renata Sousa-Lima with UFRN Laboratory of Bioacoustics & Maria Isabel Goncalves, Lara Lopes, Alice Lima with UESC Projeto Baleias na Serra

00:00 / 00:30

Guiana dolphin (Sotalia guianensis)





whistles

recorded by Renata Sousa-Lima with UFRN Laboratory of Bioacoustics & Maria Isabel Goncalves, Lara Lopes, Alice Lima with UESC Projeto Baleias na Serra

00:00 / 00:03
00:00 / 00:02

Unknown biological sounds


.

croaks




knocks

.
drumming
.

gurgle
recorded by Erin Ross-March with Sea Search Research & Conservation

00:00 / 00:02
00:00 / 00:02
00:00 / 00:28
00:00 / 00:01
00:00 / 00:02
00:00 / 00:02

Bottlenose Dolphins (Tursiops truncatus)
.

echolocation

.
echolocation & whistles

.
brays  & whistles

recorded by Paul Thompson with the University of Aberdeen

00:00 / 00:09
00:00 / 00:06
00:00 / 00:09

Snapping shrimp (family Alpheidae) and unknown fish

.
snaps and grunts
recorded by Rachel Probert with Sea Search Research & Conservation

00:00 / 00:10

Unknown fish

.
pulse trains

.
knocks
recorded by Xavier Mouy with NOAA Fisheries and Coral Morphologic

00:00 / 00:08
00:00 / 00:06
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