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| Main Authors: | , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
The Journal of the Acoustical Society of America
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41288555/ |
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Table of Contents:
- Sound properties and shallow water propagation for acoustic enrichment in coral reefs. Jézéquel, Youenn Jarriel, Sierra Bonnel, Julien Formel, Nathan Weiss, Benjamin S Aoki, Nadège Mooney, T Aran Animals Coral Reefs Acoustics Sound Sound Spectrography Pressure Motion Larva Time Factors Fishes Signal Processing, Computer-Assisted Anthozoa Water Vocalization, Animal Acoustic enrichment can facilitate coral and fish larval settlement, offering a promising method to rebuild degraded reefs. Yet it is critical to understand sound propagation in complex shallow-water coral reefs to effectively apply this method over large restoration-scale areas. In this field-based study, we quantified propagation features of multiple sound types emitted through a custom playback system over varying coral reef habitat. Sound levels were computed at different distances from the source in both pressure and particle motion, the latter being detected by marine invertebrates. Detection distances were primarily determined by source levels, and depth-dependent transmission losses. Transmission losses and detection distances were similar for sound pressure and particle acceleration measurements. Importantly, broadband particle acceleration levels could be closely estimated at distances >10 m using a single hydrophone and a plane wave approximation. Using empirically determined coral larvae sound detection thresholds, we found that low frequency sounds (