Article (Scientific journals)
‘Posidonia meadows calling’: a ubiquitous fish sound with monitoring potential
Di Iorio, Lucia; Raick, Xavier; Parmentier, Eric et al.
2018In Remote Sensing in Ecology and Conservation
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Keywords :
Posidonia oceanica; Seagrass meadows; Fish sounds; passive acoustic monitoring; Soundscape; Habitat
Abstract :
[en] In the Mediterranean Sea, the seagrass Posidonia oceanica plays a key ecological role, and is protected by a range of legislation. Standard Posidonia monitoring programmes generally focus on the plant at different spatial and short temporal scales, without considering the organisms dependent on the ecosystem. Passive acoustic monitoring (PAM) has a high potential to non-intrusively monitor biological activities and biodiversity at high temporal resolution, and to assess ecosystem health. This is particularly relevant considering that Posidonia meadows host numerous sound-producing fish species. In this study, bottommoored hydrophones were deployed in nine Western Mediterranean meadows covering a distance of more than 200 km to identify acoustic features potentially relevant to monitor this critical habitat. Among eight identified fish sound categories, we found a single type of sound (that we will refer to as /kwa/) dominating the soundscape of Posidonia meadows over a time span of 7 months. Compared to other low-frequency sounds, the /kwa/ presented unique characteristics that suggest it is produced by a fish via fast contracting muscles. The /kwa/ was the only sound detectable under anthropogenic noise conditions, and little affected by it. Cluster analyses performed on 13 acoustic features revealed a high degree of call diversity. /Kwa/ diversity, combined with its large-scale (all meadows), long-term (7 months) occurrence and low noise interference, make the /kwa/ a promising candidate for PAM of Posidonia meadows. Furthermore, variability in acoustic features suggests a central role of the /kwa/ in communication. Overall, this work sets the basis for establishing the relevance of the /kwa/ in monitoring P. oceanica meadows and developing PAM techniques for this critical habitat.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Di Iorio, Lucia ;  Chorus Research Institute
Raick, Xavier   ;  Chair Chorus, Foundation of the Grenoble Institute of Technology
Parmentier, Eric  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive
Boissery, Pierre;  Agence de l’Eau Rhone Méditerranée Corse
Valentini-Poirier, Cathy-Anna;  Agence de l’Eau Rhone Méditerranée Corse
Gervaise, Cédric;  Chorus Research Institute
 These authors have contributed equally to this work.
Language :
English
Title :
‘Posidonia meadows calling’: a ubiquitous fish sound with monitoring potential
Alternative titles :
[fr] 'L'appel de l'herbier de posidonies" : un son omniprésent avec un potentiel de monitoring
[es] 'La llamada de la pradera de posidonia" : un sonido omnipresente con un potencial de monitoreo
Publication date :
January 2018
Journal title :
Remote Sensing in Ecology and Conservation
eISSN :
2056-3485
Publisher :
y John Wiley & Sons Ltd on behalf of Zoological Society of London
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 January 2018

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