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World Oceans Passive Acoustic Monitoring Day
Listening in for World Oceans Day
Scientists all around the world participated in a global study of aquatic sound on June 8th, 2023. Underwater sound recordings from over 300 sites all over the world will be shared to create a snapshot of the cacophony of noises generated by wildlife and humans.
Start listening now! Scroll over the sites with stars to hear sounds that have already come in from June 8th 2023.

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
Epinephelus striatus (Nassau grouper)
agonistic call - repeated pulses
recorded by Michelle Schärer-Umpierre at HJR Reefscaping
00:00 / 00:04
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
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
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
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
Unknown sounds
rattle
creaking
recorded by Lucille Chapuis at La Trobe University
00:00 / 00:17
00:00 / 00:11
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 / 00:02
00:00 / 00:03
Guiana dolphin (Sotalia guianensis)
echolocation clicks and whistles
recorded by Renata Sousa-Lima with UFRN Laboratory of Bioacoustics & Maria Isabel Goncalves, Lara Lopes, Alice Lima with UESC Projeto Baleias na Serra
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