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Aoki N, Weiss B, Jézéquel Y, Zhang WG, Apprill A, Mooney TA. Soundscape enrichment increases larval settlement rates for the brooding coral Porites astreoides. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231514. [PMID: 38481984 PMCID: PMC10933538 DOI: 10.1098/rsos.231514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 04/26/2024]
Abstract
Coral reefs, hubs of global biodiversity, are among the world's most imperilled habitats. Healthy coral reefs are characterized by distinctive soundscapes; these environments are rich with sounds produced by fishes and marine invertebrates. Emerging evidence suggests these sounds can be used as orientation and settlement cues for larvae of reef animals. On degraded reefs, these cues may be reduced or absent, impeding the success of larval settlement, which is an essential process for the maintenance and replenishment of reef populations. Here, in a field-based study, we evaluated the effects of enriching the soundscape of a degraded coral reef to increase coral settlement rates. Porites astreoides larvae were exposed to reef sounds using a custom solar-powered acoustic playback system. Porites astreoides settled at significantly higher rates at the acoustically enriched sites, averaging 1.7 times (up to maximum of seven times) more settlement compared with control reef sites without acoustic enrichment. Settlement rates decreased with distance from the speaker but remained higher than control levels at least 30 m from the sound source. These results reveal that acoustic enrichment can facilitate coral larval settlement at reasonable distances, offering a promising new method for scientists, managers and restoration practitioners to rebuild coral reefs.
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Affiliation(s)
- Nadège Aoki
- Department of Biology, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Falmouth, MA 02543, USA
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Benjamin Weiss
- Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Falmouth, MA 02543, USA
| | - Youenn Jézéquel
- Department of Biology, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Falmouth, MA 02543, USA
| | - Weifeng Gordon Zhang
- Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Falmouth, MA 02543, USA
| | - Amy Apprill
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Falmouth, MA 02543, USA
| | - T. Aran Mooney
- Department of Biology, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Falmouth, MA 02543, USA
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Nieto-Mora D, Rodríguez-Buritica S, Rodríguez-Marín P, Martínez-Vargaz J, Isaza-Narváez C. Systematic review of machine learning methods applied to ecoacoustics and soundscape monitoring. Heliyon 2023; 9:e20275. [PMID: 37790981 PMCID: PMC10542774 DOI: 10.1016/j.heliyon.2023.e20275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 10/05/2023] Open
Abstract
Soundscape ecology is a promising area that studies landscape patterns based on their acoustic composition. It focuses on the distribution of biotic and abiotic sounds at different frequencies of the landscape acoustic attribute and the relationship of said sounds with ecosystem health metrics and indicators (e.g., species richness, acoustic biodiversity, vectors of structural change, gradients of vegetation cover, landscape connectivity, and temporal and spatial characteristics). To conduct such studies, researchers analyze recordings from Acoustic Recording Units (ARUs). The increasing use of ARUs and their capacity to record hours of audio for months at a time have created a need for automatic processing methods to reduce time consumption, correlate variables implicit in the recordings, extract features, and characterize sound patterns related to landscape attributes. Consequently, traditional machine learning methods have been commonly used to process data on different characteristics of soundscapes, mainly the presence-absence of species. In addition, it has been employed for call segmentation, species identification, and sound source clustering. However, some authors highlight the importance of the new approaches that use unsupervised deep learning methods to improve the results and diversify the assessed attributes. In this paper, we present a systematic review of machine learning methods used in the field of ecoacoustics for data processing. It includes recent trends, such as semi-supervised and unsupervised deep learning methods. Moreover, it maintains the format found in the reviewed papers. First, we describe the ARUs employed in the papers analyzed, their configuration, and the study sites where the datasets were collected. Then, we provide an ecological justification that relates acoustic monitoring to landscape features. Subsequently, we explain the machine learning methods followed to assess various landscape attributes. The results show a trend towards label-free methods that can process the large volumes of data gathered in recent years. Finally, we discuss the need to adopt methods with a machine learning approach in other biological dimensions of landscapes.
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Affiliation(s)
- D.A. Nieto-Mora
- MIRP-Instituto Tecnológico Metropolitano ITM, Cl. 54a N∘30-01, Medellín, Colombia
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Jézéquel Y, Aoki N, Cones SF, Mooney TA. Daytime boat sound does not affect the behavior of wild thorny oysters (Spondylus americanus): A field-based study. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:1041-1047. [PMID: 37584466 DOI: 10.1121/10.0020725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/03/2023] [Indexed: 08/17/2023]
Abstract
There is increasing awareness of boat sound effects on coral reef assemblages. While behavioral disturbances have been found in fishes, the effects on marine invertebrates remain largely unknown. Here, the behavioral effects of recreational boat sound on thorny oysters at two coral reef habitats within the U.S. Virgin Island National Park were assessed. The "treatment" site was characterized by frequent boat traffic, which increased daytime mean particle acceleration levels (PALrms) by more than 6 dB, while mean PALrms at the "control" site were not contaminated by boat sound. Despite these contrasting soundscapes, all oysters showed the same diurnal cycle, with their valves open at night and partially closed during the day. There was no statistical evidence of behavioral responses in oysters exposed to daytime boat sound. This can be explained by low auditory sensitivity, habituation to a noisy environment due to the pervasiveness of boat sound pollution, or that boat sound may not represent an immediate concern for this species. These findings contrast with laboratory studies that have shown behavioral responses in bivalves exposed to boat sound, highlighting the need for more realistic field-based studies when evaluating potential effects of anthropogenic sounds on this group.
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Affiliation(s)
- Youenn Jézéquel
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
| | - Nadège Aoki
- Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge, Massachusetts 02139, USA
| | - Seth F Cones
- Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge, Massachusetts 02139, USA
| | - T Aran Mooney
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
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Somogyi NA, Rountree RA. The sound production of Aplodinotus grunniens in the presence of boat sounds. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:831-840. [PMID: 37563830 DOI: 10.1121/10.0020542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/16/2023] [Indexed: 08/12/2023]
Abstract
Archived soundscape data from Lake Champlain, New York, were used to examine the effect of anthropogenic sounds produced by recreational boating on freshwater drum (Aplodinotus grunniens) soniferous behavior. Drum progressed from sporadic calling during the day to calls that increasingly overlapped culminating in a chorus in the late afternoon and evening. The response of drum to boat noise appeared to differ among these states, perhaps reflecting differences in the underlying behaviors. In response to boat noise, freshwater drum spawning choruses occurred later in the day, thus avoiding the noisiest periods. The peak frequency and knock rate of calls also increased in the presence of boat noise. Of the acoustical adjustments observed, the most strongly shown were those which increased the likelihood of signal reception, suggesting a Lombard effect response. Therefore, these data suggest freshwater drum have plasticity in their acoustical behavior, potentially shifting chorusing time, and altering sound characteristics to optimize communication in the presence of anthropogenic noise. However, additional work is needed to further clarify the response of freshwater drum to anthropogenic noise.
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Affiliation(s)
- Nicholas A Somogyi
- Department of Fish and Wildlife Science, Oregon State University, Corvallis, Oregon 97331, USA
| | - Rodney A Rountree
- Department of Biology, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada
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Wilson L, Constantine R, Pine MK, Farcas A, Radford CA. Impact of small boat sound on the listening space of Pempheris adspersa, Forsterygion lapillum, Alpheus richardsoni and Ovalipes catharus. Sci Rep 2023; 13:7007. [PMID: 37117196 PMCID: PMC10147705 DOI: 10.1038/s41598-023-33684-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/17/2023] [Indexed: 04/30/2023] Open
Abstract
Anthropogenic stressors, such as plastics and fishing, are putting coastal habitats under immense pressure. However, sound pollution from small boats has received little attention given the importance of sound in the various life history strategies of many marine animals. By combining passive acoustic monitoring, propagation modelling, and hearing threshold data, the impact of small-boat sound on the listening spaces of four coastal species was determined. Listening space reductions (LSR) were greater for fishes compared to crustaceans, for which LSR varied by day and night, due to their greater hearing abilities. Listening space also varied by sound modality for the two fish species, highlighting the importance of considering both sound pressure and particle motion. The theoretical results demonstrate that boat sound hinders the ability of fishes to perceive acoustic cues, advocating for future field-based research on acoustic cues, and highlighting the need for effective mitigation and management of small-boat sound within coastal areas worldwide.
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Affiliation(s)
- Louise Wilson
- Leigh Marine Laboratory, Institute of Marine Science, Waipapa Taumata Rau The University of Auckland, 160 Goat Island Road, Leigh, 0985, New Zealand.
| | - Rochelle Constantine
- Leigh Marine Laboratory, Institute of Marine Science, Waipapa Taumata Rau The University of Auckland, 160 Goat Island Road, Leigh, 0985, New Zealand
- School of Biological Sciences, Waipapa Taumata Rau The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Matthew K Pine
- Department of Biology, University of Victoria, Victoria, BC, Canada
| | - Adrian Farcas
- Centre for Environment, Fisheries & Aquaculture Science (CEFAS), Lowestoft, Suffolk, UK
| | - Craig A Radford
- Leigh Marine Laboratory, Institute of Marine Science, Waipapa Taumata Rau The University of Auckland, 160 Goat Island Road, Leigh, 0985, New Zealand
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Jones IT, D Gray M, Mooney TA. Soundscapes as heard by invertebrates and fishes: Particle motion measurements on coral reefs. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 152:399. [PMID: 35931548 DOI: 10.1121/10.0012579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Coral reef soundscapes are increasingly studied for their ecological uses by invertebrates and fishes, for monitoring habitat quality, and to investigate effects of anthropogenic noise pollution. Few examinations of aquatic soundscapes have reported particle motion levels and variability, despite their relevance to invertebrates and fishes. In this study, ambient particle acceleration was quantified from orthogonal hydrophone arrays over several months at four coral reef sites, which varied in benthic habitat and fish communities. Time-averaged particle acceleration magnitudes were similar across axes, within 3 dB. Temporal trends of particle acceleration corresponded with those of sound pressure, and the strength of diel trends in both metrics significantly correlated with percent coral cover. Higher magnitude particle accelerations diverged further from pressure values, potentially representing sounds recorded in the near field. Particle acceleration levels were also reported for boat and example fish sounds. Comparisons with particle acceleration derived audiograms suggest the greatest capacity of invertebrates and fishes to detect soundscape components below 100 Hz, and poorer detectability of soundscapes by invertebrates compared to fishes. Based on these results, research foci are discussed for which reporting of particle motion is essential, versus those for which sound pressure may suffice.
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Affiliation(s)
- Ian T Jones
- Biology Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, USA
| | - Michael D Gray
- Institute of Biomedical Engineering, University of Oxford, Oxford, OX3 7LD, United Kingdom
| | - T Aran Mooney
- Biology Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, USA
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Wilson L, Pine MK, Radford CA. Small recreational boats: a ubiquitous source of sound pollution in shallow coastal habitats. MARINE POLLUTION BULLETIN 2022; 174:113295. [PMID: 35090280 DOI: 10.1016/j.marpolbul.2021.113295] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Sound from small recreational boats spans a wide range of frequencies and source levels, but the degree to which this impacts the soundscapes of shallow coastal habitats is poorly understood. Here, long-term passive acoustic recordings at five shallow coastal sites, including two MPAs, were used to quantify spatio-temporal variation in small boat sound and its effect on the soundscape. Boats were detected almost every day at each site, irrespective of protection status, significantly elevating the low-frequency (100-800 Hz) component of the soundscape. This frequency band is used by many species for communication, orientation, and predator avoidance. Therefore, highlighting the potential for small boat sound to alter soundscapes and mask cues. Existing tools for monitoring sound pollution are targeted at sound from shipping. These data highlight that the broadband and highly variable sound emitted by small boats must be considered when evaluating anthropogenic impacts on coastal marine ecosystems worldwide.
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Affiliation(s)
- Louise Wilson
- Leigh Marine Laboratory, Institute of Marine Science, University of Auckland, PO Box 349, Warkworth 0941, New Zealand.
| | - Matthew K Pine
- Department of Biology, University of Victoria, BC, Canada
| | - Craig A Radford
- Leigh Marine Laboratory, Institute of Marine Science, University of Auckland, PO Box 349, Warkworth 0941, New Zealand
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Jézéquel Y, Bonnel J, Chauvaud L. Potential for acoustic masking due to shipping noise in the European lobster (Homarus gammarus). MARINE POLLUTION BULLETIN 2021; 173:112934. [PMID: 34537570 DOI: 10.1016/j.marpolbul.2021.112934] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Marine traffic is the most pervasive underwater anthropogenic noise pollution which can mask acoustic communication in marine mammals and fish, but its effect in marine invertebrates remains unknown. Here, we performed an at sea experiment to study the potential of shipping noise to mask and alter lobster acoustic communication. We used hydrophones to record buzzing sounds and accelerometers to detect lobster carapace vibrations (i.e. the buzzing sounds' sources). We demonstrated that male individuals produced carapace vibrations under various ambient noise conditions, including heavy shipping noise. However, while the associated waterborne buzzing sounds could be recorded under natural ambient noise levels, they were masked by shipping noise. Additionally, lobsters significantly increased their call rates in presence of shipping noise, suggesting a vocal compensation due to the reduction of intraspecific communication. This study reports for the first time the potential acoustic masking of lobster acoustic communication by chronic anthropogenic noise pollution, which could affect ecologically important behaviors.
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Affiliation(s)
- Youenn Jézéquel
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, Plouzane, France; Woods Hole Oceanographic Institution, Biology Department, Woods Hole, MA 02543, USA.
| | - Julien Bonnel
- Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering Department, Woods Hole, MA 02543, USA.
| | - Laurent Chauvaud
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, Plouzane, France.
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9
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Bertucci F, Lecchini D, Greeven C, Brooker RM, Minier L, Cordonnier S, René-Trouillefou M, Parmentier E. Changes to an urban marina soundscape associated with COVID-19 lockdown in Guadeloupe. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117898. [PMID: 34375848 PMCID: PMC9188413 DOI: 10.1016/j.envpol.2021.117898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/18/2021] [Accepted: 08/01/2021] [Indexed: 05/30/2023]
Abstract
In 2020, the COVID-19 pandemic led to government-enforced limits on activities worldwide, causing a marked reduction of human presence in outdoors environments, including in coastal areas that normally support substantial levels of boat traffic. These restrictions provided a unique opportunity to quantify the degree to which anthropogenic noise contributes to and impacts underwater soundscapes. In Guadeloupe, French West Indies, a significantly lower number of motor boats were recorded in the vicinity of the major urban marina during the peak of the first COVID-19 lockdown (April-May 2020), compared with the number recorded post-lockdown. The resumption of human activities at the end of May was correlated with a maximum increase of 6 decibels in the ambient noise level underwater. The change in noise level did not impact daily sound production patterns of vocal fishes, with increased activity at dusk seen both during and after the lockdown period. However, during the lockdown vocal activity was comprised of a reduced number of sounds, suggesting that anthropogenic noise has the potential to interfere with vocalization behaviours in fishes.
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Affiliation(s)
- Frédéric Bertucci
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université des Antilles - MNHN - CNRS 8067 - SU - IRD 207 - UCN, Bâtiment de Biologie Marine, Campus de Fouillole, B.P. 592, 97159, Pointe-à-Pitre, Guadeloupe; Laboratoire d'Excellence CORAIL, 58 avenue Paul Alduy, 66860, Perpignan CEDEX, France; Functional and Evolutionary Morphology Lab, AFFISH-RC, UR FOCUS, University of Liège, Campus du Sart Tilman - Bât. B6c, Quartier Agora, Allée de la Chimie, 3, 4000, Liège, Belgium.
| | - David Lecchini
- Laboratoire d'Excellence CORAIL, 58 avenue Paul Alduy, 66860, Perpignan CEDEX, France; PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Moorea, French Polynesia
| | - Céline Greeven
- Functional and Evolutionary Morphology Lab, AFFISH-RC, UR FOCUS, University of Liège, Campus du Sart Tilman - Bât. B6c, Quartier Agora, Allée de la Chimie, 3, 4000, Liège, Belgium
| | - Rohan M Brooker
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC, 3216, Australia; Australian Institute of Marine Science, University of Western Australia, Perth, WA, 6009, Australia
| | - Lana Minier
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Moorea, French Polynesia
| | - Sébastien Cordonnier
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université des Antilles - MNHN - CNRS 8067 - SU - IRD 207 - UCN, Bâtiment de Biologie Marine, Campus de Fouillole, B.P. 592, 97159, Pointe-à-Pitre, Guadeloupe
| | - Malika René-Trouillefou
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université des Antilles - MNHN - CNRS 8067 - SU - IRD 207 - UCN, Bâtiment de Biologie Marine, Campus de Fouillole, B.P. 592, 97159, Pointe-à-Pitre, Guadeloupe; Laboratoire d'Excellence CORAIL, 58 avenue Paul Alduy, 66860, Perpignan CEDEX, France
| | - Eric Parmentier
- Functional and Evolutionary Morphology Lab, AFFISH-RC, UR FOCUS, University of Liège, Campus du Sart Tilman - Bât. B6c, Quartier Agora, Allée de la Chimie, 3, 4000, Liège, Belgium
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Ferrier-Pagès C, Leal MC, Calado R, Schmid DW, Bertucci F, Lecchini D, Allemand D. Noise pollution on coral reefs? - A yet underestimated threat to coral reef communities. MARINE POLLUTION BULLETIN 2021; 165:112129. [PMID: 33588103 DOI: 10.1016/j.marpolbul.2021.112129] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 05/08/2023]
Abstract
Noise pollution is an anthropogenic stressor that is increasingly recognized for its negative impact on the physiology, behavior and fitness of marine organisms. Driven by the recent expansion of maritime shipping, artisanal fishing and tourism (e.g., motorboats used for recreational purpose), underwater noise increased greatly on coral reefs. In this review, we first provide an overview on how reef organisms sense and use sound. Thereafter we review the current knowledge on how underwater noise affects different reef organisms. Although the majority of available examples are limited to few fish species, we emphasize how the impact of noise differs based on an organisms' acoustic sensitivity, mobility and developmental stage, as well as between noise type, source and duration. Finally, we highlight measures available to governments, the shipping industry and individual users and provide directions for polices and research aimed to manage this global issue of noise emission on coral reefs.
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Affiliation(s)
- Christine Ferrier-Pagès
- Centre Scientifique de Monaco, Coral Ecophysiology Team, 8 Quai Antoine 1er, MC-98000, Monaco.
| | - Miguel C Leal
- ECOMARE, Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ricardo Calado
- ECOMARE, Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | | | - Frédéric Bertucci
- Functional and Evolutionary Morphology Lab, University of Liege, Belgium; PSL University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, 98729 Moorea, French Polynesia
| | - David Lecchini
- PSL University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, 98729 Moorea, French Polynesia; Laboratoire d'Excellence "CORAIL", Perpignan, France
| | - Denis Allemand
- Centre Scientifique de Monaco, Coral Ecophysiology Team, 8 Quai Antoine 1er, MC-98000, Monaco
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Mooney TA, Di Iorio L, Lammers M, Lin TH, Nedelec SL, Parsons M, Radford C, Urban E, Stanley J. Listening forward: approaching marine biodiversity assessments using acoustic methods. ROYAL SOCIETY OPEN SCIENCE 2020; 7:201287. [PMID: 32968541 PMCID: PMC7481698 DOI: 10.1098/rsos.201287] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/05/2020] [Indexed: 05/08/2023]
Abstract
Ecosystems and the communities they support are changing at alarmingly rapid rates. Tracking species diversity is vital to managing these stressed habitats. Yet, quantifying and monitoring biodiversity is often challenging, especially in ocean habitats. Given that many animals make sounds, these cues travel efficiently under water, and emerging technologies are increasingly cost-effective, passive acoustics (a long-standing ocean observation method) is now a potential means of quantifying and monitoring marine biodiversity. Properly applying acoustics for biodiversity assessments is vital. Our goal here is to provide a timely consideration of emerging methods using passive acoustics to measure marine biodiversity. We provide a summary of the brief history of using passive acoustics to assess marine biodiversity and community structure, a critical assessment of the challenges faced, and outline recommended practices and considerations for acoustic biodiversity measurements. We focused on temperate and tropical seas, where much of the acoustic biodiversity work has been conducted. Overall, we suggest a cautious approach to applying current acoustic indices to assess marine biodiversity. Key needs are preliminary data and sampling sufficiently to capture the patterns and variability of a habitat. Yet with new analytical tools including source separation and supervised machine learning, there is substantial promise in marine acoustic diversity assessment methods.
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Affiliation(s)
- T. Aran Mooney
- Biology Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543, USA
- Author for correspondence: T. Aran Mooney e-mail:
| | - Lucia Di Iorio
- CHORUS Institute, Phelma Minatec, 3 parvis Louis Néel, 38000 Grenoble, France
| | - Marc Lammers
- Hawaiian Islands Humpback Whale National Marine Sanctuary, 726 South Kihei Road, Kihei, HI 96753, USA
| | - Tzu-Hao Lin
- Biodiversity Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan
| | - Sophie L. Nedelec
- Biosciences, College of Life and Environmental Sciences, Hatherly Laboratories, University of Exeter, Prince of Wales Road, Exeter EX4 4PS, UK
| | - Miles Parsons
- Australian Institute of Marine Science, Perth, Western Australia 6009, Australia
| | - Craig Radford
- Institute of Marine Science, Leigh Marine Laboratory, University of Auckland, PO Box 349, Warkworth 0941, New Zealand
| | - Ed Urban
- Scientific Committee on Oceanic Research, University of Delaware, Newark, DE 19716, USA
| | - Jenni Stanley
- Biology Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543, USA
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