passive acoustics passive acousticslistening to sound sources; sound is only receivedSynonyms: passive sonobuoysRelated Articles: Biological OceanographerHot Topic- Passive Acoustic Monitoring Critical to Vaquita Conservation EffortsChanges in Baleen Whale VocalizationsHow is sound used to find submarines?Blue WhaleAbout DOSITSHow is sound used to estimate marine mammal abundance?Reference List: Animals and SoundEchosoundersTutorial: Echosounders Chris Knowlton2018-03-09T14:27:15-05:00