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 Whale2020 Webinar SeriesAbout DOSITSHow is sound used to estimate marine mammal abundance?Reference List: Animals and SoundEchosounders Chris Knowlton2018-03-09T14:27:15-05:00