Sound PostcardPosted: March 9, 2022 “These fish languages, they really only work underwater. It's fascinating! The basic system is mouth movements and bubbles signals. At the moment, I can only make big bubbles and they keep on telling me I'm shouting.” --- The Voyages of Doctor Doolittle, by Hugh Lofting Aquatic scientists who listen to and record underwater soundscapes with Passive Acoustic Monitoring (PAM) hydrophones and unmanned autonomous vehicles are working to create a Global Library of Underwater Biological Sounds (GLUBS). While an estimated one million animal species live in the ocean, recordings exist for only thousands. In addition to adding to our knowledge of known and unknown underwater sound sources (e.g., animal species and human activity-related noise), GLUBS may, one day, allow us to both identify the aquatic sounds we hear and discover never-before-heard sounds. NHCA members can connect hydrophones to their smartphones to listen to their local underwater communities. Many of us are bird-listeners. Now, we can fish-listen, too. To learn more: https://www.frontiersin.org/articles/10.3389/fevo.2022.810156/full https://dosits.org/decision-makers/webinar-series/2021-webinar-series/webinar-passive-acoustic/ |