Marine crustaceans produce broadband sounds that are useful for passive acoustic monitoring to support conservation and management efforts. However, the propagation characteristics and detection ranges of their signals are poorly known, limiting our leveraging of these sounds. Here, we used a four-hydrophone linear array to measure source levels (SLs) and sound propagation from Caribbean spiny lobsters (Panulirus argus) of a wide range of sizes within a natural, shallow water habitat (3.3 m depth). Source level in peak-peak (SLpp) varied with body size; larger individuals produced SLpp up to 166 dB re 1 μPa. However, transmission losses (TL) were similar across all sizes, with a global fitted TL of 12.1 dB. Correspondingly, calculated detection ranges varied with body size, ranging between 14 and 364 m for small and large individuals (respectively). This increased up to 1612 m for large spiny lobsters when considering lower ambient noise levels. Despite the potential ease of tank studies, our results highlight the importance of empirical in situ sound propagation studies for marine crustaceans. Given the important ecological and economic role of spiny lobsters, these data are a key step to supporting remote monitoring of this species for fisheries management and efforts to acoustically quantify coral reefs' health.
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January 2023
January 24 2023
Acoustic properties and shallow water propagation distances of Caribbean spiny lobster sounds (Panulirus argus)
Youenn Jézéquel
;
Youenn Jézéquel
a)
Biology Department, Woods Hole Oceanographic Institution
, Woods Hole, Massachusetts 02543, USA
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Nadège Aoki;
Nadège Aoki
b)
Biology Department, Woods Hole Oceanographic Institution
, Woods Hole, Massachusetts 02543, USA
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T. Aran Mooney
T. Aran Mooney
Biology Department, Woods Hole Oceanographic Institution
, Woods Hole, Massachusetts 02543, USA
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a)
Electronic mail: [email protected]
b)
Also at: MIT-WHOI Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge, MA 02139, USA.
J. Acoust. Soc. Am. 153, 529–537 (2023)
Article history
Received:
September 01 2022
Accepted:
January 04 2023
Citation
Youenn Jézéquel, Nadège Aoki, T. Aran Mooney; Acoustic properties and shallow water propagation distances of Caribbean spiny lobster sounds (Panulirus argus). J. Acoust. Soc. Am. 1 January 2023; 153 (1): 529–537. https://doi.org/10.1121/10.0016898
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