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Temporal and spatial comparisons of underwater sound signatures of different reef habitats in Moorea Island, French Polynesia

Bertucci, Frédéric, Parmentier, Eric, Berten, Laëtitia, Brooker, Rohan M. and Lecchini, David 2015, Temporal and spatial comparisons of underwater sound signatures of different reef habitats in Moorea Island, French Polynesia, PLOS One, vol. 10, no. 9, pp. 1-12, doi: 10.1371/journal.pone.0135733.

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Title Temporal and spatial comparisons of underwater sound signatures of different reef habitats in Moorea Island, French Polynesia
Author(s) Bertucci, Frédéric
Parmentier, Eric
Berten, Laëtitia
Brooker, Rohan M.ORCID iD for Brooker, Rohan M. orcid.org/0000-0001-8739-6914
Lecchini, David
Journal name PLOS One
Volume number 10
Issue number 9
Article ID e0135733
Start page 1
End page 12
Total pages 12
Publisher Public Library of Science
Place of publication San Francisco, Calif.
Publication date 2015
ISSN 1932-6203
Keyword(s) Acoustics
Animal Distribution
Animals
Coral Reefs
Crustacea
Ecosystem
Fishes
Larva
Polynesia
Sound
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
PELAGIC LARVAE
AMBIENT NOISE
DEEP-OCEAN
FISH
ORIENTATION
SETTLEMENT
BEHAVIOR
ENVIRONMENT
AUSTRALIA
PATTERNS
Summary As environmental sounds are used by larval fish and crustaceans to locate and orientate towards habitat during settlement, variations in the acoustic signature produced by habitats could provide valuable information about habitat quality, helping larvae to differentiate between potential settlement sites. However, very little is known about how acoustic signatures differ between proximate habitats. This study described within- and between-site differences in the sound spectra of five contiguous habitats at Moorea Island, French Polynesia: the inner reef crest, the barrier reef, the fringing reef, a pass and a coastal mangrove forest. Habitats with coral (inner, barrier and fringing reefs) were characterized by a similar sound spectrum with average intensities ranging from 70 to 78 dB re 1 μPa.Hz(-1). The mangrove forest had a lower sound intensity of 70 dB re 1 μPa.Hz(-1) while the pass was characterized by a higher sound level with an average intensity of 91 dB re 1 μPa.Hz(-1). Habitats showed significantly different intensities for most frequencies, and a decreasing intensity gradient was observed from the reef to the shore. While habitats close to the shore showed no significant diel variation in sound intensities, sound levels increased at the pass during the night and barrier reef during the day. These two habitats also appeared to be louder in the North than in the West. These findings suggest that daily variations in sound intensity and across-reef sound gradients could be a valuable source of information for settling larvae. They also provide further evidence that closely related habitats, separated by less than 1 km, can differ significantly in their spectral composition and that these signatures might be typical and conserved along the coast of Moorea.
Language eng
DOI 10.1371/journal.pone.0135733
Field of Research MD Multidisciplinary
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015 Bertucci et al.
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30112922

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.