passive acoustics passive acousticslistening to sound sources; sound is only receivedSynonyms: passive sonobuoysRelated Articles: Biological OceanographerHot Topic- Passive Acoustic Monitoring Critical to Vaquita Conservation EffortsHow is sound used to find submarines?About DOSITSHow is sound used to estimate marine mammal abundance?Reference List: Animals and SoundSonobuoysEchosoundersTutorial: EchosoundersHow is acoustics used to monitor Arctic marine mammals? Chris Knowlton2018-03-09T14:27:15-05:00