Article (Scientific journals)
Highlighting the resilience potential of marine protected areas in the face of coral bleaching with passive acoustic monitoring
Raick, Xavier; Parmentier, Eric; Lecchini, David et al.
2025In Royal Society Open Science, 12 (7)
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Keywords :
coral reefs; ecoacoustics; soundscape; French Polynesia; passive acoustic monitoring; conservation bioacoustics
Abstract :
[en] Marine Protected Areas (MPAs) can increase the resilience of reef communities to disturbances, playing a role in sheltering biodiversity from climate-related impacts. To determine if the protection status allows for better resilience after coral bleaching events, we recorded soundscapes of eight reefs of Moorea Island (French Polynesia). We compared the biophony of MPAs to the one of adjacent non-protected zones recorded in 2015, before two bleaching events (2016 and 2019), to the one in 2021. Then, the biophony from 2021 was compared within and outside MPAs. We hypothesize that differences in the biophony between these periods vary within and outside MPAs. The main result is an increase in the nocturnal high frequency (2–22 kHz) mass phenomena of benthic invertebrates, observed at sites with higher coral cover post-bleaching compared to pre-bleaching: nocturnal power spectral density (PSD) and peak frequency of invertebrate sounds varied between 2015 and 2021. For fish sounds, no daytime difference was observed, while nocturnal PSD was higher in 2021. These observations reflect distinct bleaching histories. High-frequency PSD measurements and the associated frequency values demonstrated strong correlation with temporal changes in coral cover. We suggest including it in long-term reef monitoring due to its complementary nature with respect to classical methods.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Raick, Xavier  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive ; K. Lisa Yang Center for Conservation Bioacoustics, Cornell University
Parmentier, Eric  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive
Lecchini, David;  USR 3278 CRIOBE, PSL University, EPHE-UPVD-CNRS ; Laboratoire d’Excellence ‘CORAIL’
Gervaise, Cédric;  Chorus Institute
Bertucci, Frédéric;  UMR MARBEC, University of Montpellier-CNRS-IFREMER-IRD
Iwankow, Guillaume;  USR 3278 CRIOBE, PSL University, EPHE-UPVD-CNRS ; GUMP Scientific Station, University of California Santa Barbara
Chancerelle, Yannick;  USR 3278 CRIOBE, PSL University, EPHE-UPVD-CNRS
Siu, Gilles;  USR 3278 CRIOBE, PSL University, EPHE-UPVD-CNRS
Di Iorio, Lucia;  CEFREM, CNRS, UMR 5110, Université de Perpignan Via Domitia
Language :
English
Title :
Highlighting the resilience potential of marine protected areas in the face of coral bleaching with passive acoustic monitoring
Publication date :
2025
Journal title :
Royal Society Open Science
eISSN :
2054-5703
Publisher :
The Royal Society
Volume :
12
Issue :
7
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
14. Life below water
13. Climate action
Funders :
King Leopold III Fund for Nature Exploration and Conservation
ULg - University of Liège
Funding text :
University of Liège “financement mission scientifique”
Data Set :
Commentary :
This research is part of the project ‘Acoustics to Assess the Health Status of Reefs’ hosted by the Ocean Decade Research Programme on the Maritime Acoustic Environment (OD-MAE) endorsed by the 2021–2030 United Nations Decade of Ocean Science for Sustainable Development (UNESCO).
Available on ORBi :
since 10 July 2025

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