Effect on ocean noise: Nyepi, a Balinese day of silence

TitleEffect on ocean noise: Nyepi, a Balinese day of silence
Publication TypeJournal Article
Year of Publication2018
AuthorsWilliams, R., Erbe C., Dewantama I.M.I., and Hendrawan I.G.
EndNote Rec Number12045

Taking advantage of a religious holiday called Nyepi that curtailed human activ- ities for one day, we recorded acous- tic noise levels for one week in shallow waters of a little-trafficked area west of Bali below the Ngurah Rai airport flight path (Figure 1). Sound is as important to many marine organisms as vision is to humans. From the song of the hump- back whale to the exquisite sonar system of the killer whale, many marine verte- brates have evolved sophisticated systems for sending and receiving acoustic signals to facilitate vital life functions. Coral reef fish sing in a dawn chorus, much as song- birds do (McCauley and Cato, 2000).