Inter-seasonal comparison of acoustic propagation in a Thalassia testudinum seagrass meadow in a shallow sub-tropical lagoon

Authors

Kevin M. Lee
Megan S. Ballard, University of Texas at Austin
Andrew R. McNeese, University of Texas at Austin
Preston S. Wilson, University of Texas at Austin
Gabriel R. Venegas, University of Texas at Austin
Mathew C. Zeh
Abdullah Rahman, The University of Texas Rio Grande Valley

Document Type

Article

Publication Date

1-4-2023

Abstract

Acoustic propagation measurements were collected in a seagrass meadow in a shallow lagoon for periods of over 65 h in winter and 93 h in summer. A bottom-deployed sound source transmitted chirps (0.1–100 kHz) every 10 min that were received on a four-receiver horizontal hydrophone array. Oceanographic probes measured various environmental parameters. Daytime broadband acoustic attenuation was 2.4 dB greater in summer than winter, and the median received acoustic energy levels were 8.4 dB lower in summer compared to winter. These differences were attributed in part to seasonal changes in photosynthesis bubble production and above-ground seagrass biomass.

Comments

© 2023 Author(s).

Recommended Citation

Lee, Kevin M., et al. "Inter-seasonal comparison of acoustic propagation in a Thalassia testudinum seagrass meadow in a shallow sub-tropical lagoon." JASA Express Letters 3.1 (2023): 010801. https://doi.org/10.1121/10.0016752

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Title

JASA Express Letters

DOI

10.1121/10.0016752