Article (Scientific journals)
Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity.
Raick, Xavier; Parmentier, Eric; Gervaise, Cédric et al.
2024In Oecologia, 205 (2), p. 307 - 322
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Keywords :
Benthic invertebrate sounds; Broadband transient sounds; French Polynesia; Mesophotic coral ecosystems; Snapping shrimps; Animals; Polynesia; Acoustics; Anthozoa/physiology; Coral Reefs; Invertebrates/physiology; Sound; Biodiversity; Ecology, Evolution, Behavior and Systematics
Abstract :
[en] Although mesophotic coral ecosystems account for approximately 80% of coral reefs, they remain largely unexplored due to their challenging accessibility. The acoustic richness within reefs has led scientists to consider passive acoustic monitoring as a reliable method for studying both altiphotic and mesophotic coral reefs. We investigated the relationship between benthic invertebrate sounds (1.5-22.5 kHz), depth, and benthic cover composition, key ecological factors that determine differences between altiphotic and mesophotic reefs. Diel patterns of snaps and peak frequencies were also explored at different depths to assess variations in biorhythms. Acoustic recorders were deployed at 20 m, 60 m, and 120 m depths across six islands in French Polynesia. The results indicated that depth is the primary driver of differences in broadband transient sound (BTS) soundscapes, with sound intensity decreasing as depth increases. At 20-60 m, sounds were louder at night. At 120 m depth, benthic activity rhythms exhibited low or highly variable levels of diel variation, likely a consequence of reduced solar irradiation. On three islands, a peculiar peak in the number of BTS was observed every day between 7 and 9 PM at 120 m, suggesting the presence of cyclic activities of a specific species. Our results support the existence of different invertebrate communities or distinct behaviors, particularly in deep mesophotic reefs. Overall, this study adds to the growing evidence supporting the use of passive acoustic monitoring to describe and understand ecological patterns in mesophotic reefs.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Zoology
Author, co-author :
Raick, Xavier  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive
Parmentier, Eric  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive
Gervaise, Cédric;  Chorus Institute, Grenoble, France
Lecchini, David;  PSL University, EPHE-UPVD-CNRS, USR, CRIOBE, 3278, Moorea, French Polynesia ; Laboratoire d'Excellence "CORAIL", Perpignan, France
Under The Pole Consortium
Pérez-Rosales, Gonzalo;  PSL University, EPHE-UPVD-CNRS, USR, CRIOBE, 3278, Moorea, French Polynesia
Rouzé, Héloïse;  PSL University, EPHE-UPVD-CNRS, USR, CRIOBE, 3278, Moorea, French Polynesia ; Marine Laboratory, University of Guam, Mangilao, GU, USA
Bertucci, Frédéric;  Laboratory of Functional and Evolutionary Morphology, Freshwater and Oceanic Science Unit of Research, University of Liège, Liège, Belgium ; PSL University, EPHE-UPVD-CNRS, USR, CRIOBE, 3278, Moorea, French Polynesia
Di Iorio, Lucia;  University of Perpignan Via Domitia, CNRS, CEFREM, UMR 5110, Perpignan, France
Language :
English
Title :
Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity.
Publication date :
June 2024
Journal title :
Oecologia
ISSN :
0029-8549
eISSN :
1432-1939
Publisher :
Springer Science and Business Media Deutschland GmbH, Germany
Volume :
205
Issue :
2
Pages :
307 - 322
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
14. Life below water
Funders :
ANR - Agence Nationale de la Recherche
CNRS - French National Centre for Scientific Research
IFRECOR - Initiative Française pour les Récifs Coralliens
Funding text :
This research was funded by the ANR DEEPHOPE (ANRAAPG 2017 #168722), the D\u00E9l\u00E9gation \u00E0 la Recherche DEEPCORAL, the CNRS DEEPREEF and the IFRECOR. The technical dives were funded through the Under The Pole Expedition III.
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