Temporal and Spatial Comparisons of Underwater Sound Signatures of Different Reef Habitats in Moorea Island, French Polynesia

Bertucci, Frédéric; Parmentier, Éric; Berten, Laetitia; Brooker, Rohan M.; Lecchini, David

doi:10.1371/journal.pone.0135733

Cited by 42 publications

(41 citation statements)

References 32 publications

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“…Unlike the rest of the day when there was constant acoustic activity, dawn and dusk were nearly silent. The fact that such a wide‐open acoustic space was not more fully occupied is surprising, especially when compared to many other habitat types that have peaks of acoustic activity at dawn and dusk (Bertucci, Parmentier, Berten, Brooker, & Lecchini, ; Depraetere et al., ; Pijanowski, Farina, Gage, Dumyahn, & Krause, ; Radford, Jeffs, Tindle, & Montgomery, ). In our study, the only sound type with abundance peaks at dawn and dusk was Click.…”

Section: Discussionmentioning

confidence: 99%

Acoustic monitoring reveals diversity and surprising dynamics in tropical freshwater soundscapes

et al. 2018

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Freshwater systems are globally threatened and in need of enhanced monitoring and assessment. We applied soundscape recording and analysis—which presents an opportunity for long‐term, high‐resolution animal community monitoring and assessment—to a freshwater context to better understand the acoustic diversity and dynamics of these systems. We recorded the aquatic soundscape of a Neotropical freshwater swamp in Costa Rica for 23 days in January and February 2015 during the dry season. We classified biological sound types in these recordings and developed measurements of richness and occupancy based on this classification. We also calculated six complementary acoustic indices to assess soundscape diversity and daily and longer‐term soundscape dynamics, and we examined correlations between these acoustic indices and sound type metrics. We found rich soundscapes in which biological sounds were almost always present, and we classified 18 sound types that we attribute to aquatic insects. These sound types showed distinct daily patterns and exhibited temporal and spectral acoustic niche partitioning. Sound type richness was most correlated with the number of peaks index (correlation = .36; p < .001), while sound type occupancy was most correlated with the Bioacoustic Index (correlation = .92; p < .001). In contrast to generally high levels of acoustic activity, there were brief (approximately 1 hr), unexpected quiet periods around dawn and dusk. This study represents an early attempt to comprehensively describe tropical freshwater soundscapes in a systematic and quantitative manner. We demonstrate that sound type classification and the quantification of acoustic occupancy capture aspects of soundscape diversity and dynamics that are complementary to those assessed by acoustic indices. Our analyses reveal that the soundscapes of this tropical wetland were diverse and exhibited daily dynamics that differed from those found in other ecosystems.

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Section: Discussionmentioning

confidence: 99%

Acoustic monitoring reveals diversity and surprising dynamics in tropical freshwater soundscapes

et al. 2018

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“…These five species showed significant differences in their AEP threshold and frequency bandwidth, but they are all able to settle on patch reefs located in Moorea Island (Dufour and Galzin, 1993;Lecchini et al, 2006). Recently, Bertucci et al (2015) measured underwater sound signatures of different reef habitats in this area and they observed that the inner reef crest, the fringing reef and the barrier reef had similar spectral patterns with a maximum peak of sound intensities around 200 Hz. This peak intensity occurred at a frequency near the lowest AEP threshold of the studied species (Fig.…”

Section: Interspecific Differences In Auditory Capabilitiesmentioning

confidence: 99%

Auditory evoked potential audiograms in post-settlement stage individuals of coral reef fishes

Colleye

Kéver

Lecchini

et al. 2016

Journal of Experimental Marine Biology and Ecology

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Just after the reef colonization, fish species could use the acoustic cue to settle on different suitable habitats. In the present study, we used the auditory evoked potential (AEP) technique to measure and compare the detection abilities in five coral reef fish species, with some of these species that are found in the same habitat. We also examined the effect of fish size on sensitivity at the species level. All studied species except one showed size-related changes in sensitivity characterized by either a decrease (i.e. higher AEP thresholds) or an increase (i.e. lower AEP thresholds) in detection abilities with increasing size. The interspecific comparison of audiograms revealed that some species are more sensitive than others in terms of sound pressure level and frequency detection. Overall, this study indicates that the AEP threshold and the frequency bandwidth at early life stages may vary between and within fish species. The detection abilities are different in fish species that are not phylogenetically related, which might suggest that the establishment of their capabilities is not necessarily related to the reef conquest.

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“…These spatial patterns can be driven by species sorting in response to natural variation. For example, different coastal habitats , Lillis et al 2014, zones within a reef (Radford et al 2014, Bertucci et al 2015, and reefs varying in substrate composition (Kennedy et al 2010, Piercy et al 2014 can exhibit unique soundscapes. Spatial variation in soundscapes can also be created by different levels of anthropogenic disturbance between sites, how these sites are managed, and the level to which species are protected from fishing (Piercy et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

Salas¹,

Altieri²,

Wilson³

et al. 2018

Mar. Ecol. Prog. Ser.

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The combined acoustic activity of soniferous organisms living in benthic habitats produces habitat-specific soundscapes, which are predicted to influence fish and invertebrate larval behavior during the settlement process. Not every sound will have the amplitude and frequency characteristics relative to hearing sensitivity to be used as an acoustic cue, thus the cuescape is a subset of the soundscape. These sounds vary through space and time, and little is known about how this variability could influence their role in settlement. We recorded the soundscapes of 4 coral reefs in Caribbean Panama for 6 wk and conservatively identified the sounds most likely to compose the cuescapes used by larval fishes. While these sites represented the variation in reef condition across the study area, we observed the same 4 dominant taxa groups emerge as the most likely producers of acoustic cues. These results were consistent across both time and space when compared to short-term recordings taken at these 4 reefs and at an additional 11 sites 2 yr prior. Next, we used an individual-based model to test the relationship between settlement success and the natural spatiotemporal variability we observed in these potential cues. Temporal variation in the sounds resulted in variation in settlement success; however, even shortrange, intermittent cues improved the likelihood of settlement. Overall, we observed similar acoustic cuescapes across reefs that varied in condition, suggesting that cuescapes can be resilient to some forms of reef degradation by retaining sounds potentially useful to larval fishes for both navigation and habitat selection.KEY WORDS: Coral reef · Soundscape · Larval fish · Larval settlement · Acoustics · Modeling · Cues · Fish behavior Resale or republication not permitted without written consent of the publisher

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Temporal and Spatial Comparisons of Underwater Sound Signatures of Different Reef Habitats in Moorea Island, French Polynesia

Cited by 42 publications

References 32 publications

Acoustic monitoring reveals diversity and surprising dynamics in tropical freshwater soundscapes

Acoustic monitoring reveals diversity and surprising dynamics in tropical freshwater soundscapes

Auditory evoked potential audiograms in post-settlement stage individuals of coral reef fishes

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

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