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Experiment 1 Original Reef Recordings:\u00a0 Continuous recordings of Tektite and Ramhead reefs in August 2013 Pa
\nExperiment 1 Playback Experiment:\u00a0 Recordings Recordings of playbacks from experiment 1 in 2016 for each site in each night
\nExperiment 2 Original Reef Recordings: Continuous recordings of Tektite and Booby Rock reefs in summer 2017
\nExperiment 2 Playback Experiment Recordings: Recordings of playbacks from experiment 2 in 2017 for each site in each nightFull Methods can be found in Suca et al. (2020). The following descriptions are exercpts from the methods of this paper.<\/p>\n
Units in these data are Pa.<\/p>\n
Experiment 1 Original Reef Recordings: Natural reef soundscape treatments were randomly selected 24 h periods from a 4 d continuous recording of 2 nearby reefs, Tektite (18.310\u00b0 N, 64.722\u00b0 W) and Ram Head (18.301\u00b0 N, 64.704\u00b0 W) (see Fig. 1 in Suca et al., 2020). Initial recordings were made in August 2013 using a 120 kHz sampling rate and 50 kHz low-pass filter, and were down-sampled to 48 kHz for this experiment.<\/p>\n
Experiment 1 Playback Experiment Recordings: The reef soundscape recordings were amplified using Adobe Audition (Adobe Systems) to ensure broadband SPLrms were similar to the original reef recordings. At the initiation of a given trial, the playback recordings were started at the time of day matching the start time of the experiment. This allowed the playback recordings to match the diel cycle, including the crepuscular fish chorus, of the local coral reefs. High and low sound level treatments were manipulated through the volume settings on the audio players such that the full-band SPLrms (0.1\u221220 kHz) of the high and low treatments were approximately 120 and 115 dB re 1 \u00b5Pa, respectively. Because decibels are logarithmic, this 5 dB difference is equivalent to one treatment being about twice the amplitude of the other in terms of sound pressure. A silent file was played on loop as the silent control treatment to account for potential effects of the electromagnetic field generated by the playback equipment. Locations of treatments (high, low, and silent) were randomly selected each night to minimize confounding spatial effects on settlement.<\/p>\n
Experiment 2 Original Reef Recordings: Soundscape playback treatments consisted of natural reef soundscapes, recorded continuously for 24 h from 1\u22124 nights prior to each trial. This allowed us to closely match season and lunar phase of fish settlement (unlike Expt 1), as reef soundscapes are known to vary (though weakly) at these temporal scales. Recordings were made using a SoundTrap ST300 with a 48 kHz sampling rate, at 2 reefs, both with high coral cover and fish abundance relative to other reefs in the region (Booby Rock, 18.302\u00b0 N, 64.710\u00b0 W; Tektite, 18.310\u00b0 N, 64.722\u00b0 W) maximizing the likelihood of elevated SPLrms in frequencies below 3000 Hz. While it is unlikely that most fish hear the high frequencies of snapping shrimp, it is worth noting that these reefs had similar SPLrms in the snapping shrimp acoustic band (which generally have greatest acoustic energy above 2000 Hz). Five continuous recordings of reef sounds were collected and used for playbacks.<\/p>\n
Experiment 2 Playback Experiment Recordings: A hydrophone (SoundTrap ST300, Ocean Instruments) was attached to the bottom of each light trap and recorded at a sampling rate of 48 kHz for 63 s every 5 min to acquire sufficient recordings of playbacks while maximizing the efficiency of data processing. The playback experiment was conducted for 13 nights, with 10 nights occurring in July and 3 in August. Five continuous recordings of reef sounds were collected and used for playbacks. Three of these recordings were collected at Tektite reef and 2 at Booby Rock reef. Most recordings were used for less than 3 playbacks, except for 20\u221223 July when the same recording was used for 4 experiments due to time constraints precluding the collection and processing of an additional continuous recording. Overall, this randomization of multiple acoustic treatments sought to reduce pseudoreplication of sound stimuli and more closely replicate natural soundscapes from reefs with abundant fish sounds. The continuous recordings of reef soundscapes were amplified and initiated, and treatments (high, low, silent) were assigned in the same manner as Expt 1.<\/p>\n
Instruments:\u00a0
\nExperiment 1: DMON; Woods Hole Oceanographic Institution; flat frequency response from 100 Hz to 50 kHz and total design sensitivity of \u2212167 dB re V\/\u00b5Pa<\/p>\n
Experiment 2: SoundTrap ST300; Ocean Instruments; ST8 = -171.3 dB re V\/\u00b5Pa; ST10 = -171.9 dB re V\/\u00b5Pa; ST4 = -171.2 dB re V\/\u00b5P<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/www.w3.org\/2000\/01\/rdf-schema#label":[{"@value":"Acoustic Data: Larval fish response to reef soundscapes","@type":"xsd:string"}],"http:\/\/ocean-data.org\/schema\/hasProcessingDescription":[{"@value":"
Experiment 1: Acoustic recordings of the playback treatments and original recordings of reef soundscapes were processed using Matlab 9.2 (MathWorks). Prior to calculating SPLrms, data were down-sampled to 48 kHz and filtered to a 100\u22123000 Hz band (lowband) using a 4th order Butterworth filter for analyses relating playback to fish catches, though power spectral density (PSD) was also computed for the 100\u2212 20 000 Hz band. This frequency range omits low frequency electronic noise from the recording system, encompasses acoustic frequencies that reef fish are known to detect and is near the approximate cutoff frequency (~128 Hz) for this experiment based on water temperature, depth, and substrate. The SPLrms values were calculated from 1 min samples, each spaced 5 min apart, to generate a median SPLrms for each treatment level of each trial; median values were used because soundscape data are often not normally distributed. This also minimized the effects of noise from passing vessels, which generate high amplitude, but short duration, low frequency sounds that inflate mean SPLrms values. However, files containing boat noise from the vessel used to deploy and recover the experimental equipment were excluded from use in the analysis. For each treatment in each trial and the original recordings of reef soundscapes used for playbacks, PSDs (in dB re 1 \u00b5Pa2 \/Hz, with 1 Hz and 1 s bins, with 50% overlap of time bins) of each recording were calculated using Welch\u2019s method to assess the power of the soundscape at various frequencies.<\/p>\n
Experiment 2: Acoustic recordings of the playback treatments and original recordings of reef soundscapes were processed using Matlab 9.2 (MathWorks). SPLrms values for low-band (100\u22123000 Hz) frequencies for each treatment and PSDs were calculated in the same manner as Expt 1, including identical treatment of vessel noise.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/purl.org\/dc\/terms\/identifier":[{"@value":"833453","@type":"xsd:int"}],"http:\/\/purl.org\/dc\/terms\/title":[{"@value":"Acoustic Data: Larval fish response to reef soundscapes"}],"http:\/\/purl.org\/dc\/terms\/date":[{"@value":"2020-12-11T12:43:23-05:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/created":[{"@value":"2020-12-11T12:43:23-05:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/modified":[{"@value":"2022-11-17T15:07:04-05:00","@type":"xsd:dateTime"}],"http:\/\/rdfs.org\/ns\/void#inDataset":[{"@id":"http:\/\/www.bco-dmo.org\/"}],"http:\/\/ocean-data.org\/schema\/namedGraph":[{"@value":"urn:bcodmo:dataset:833453","@type":"xsd:token"}],"http:\/\/ocean-data.org\/schema\/osprey_page":[{"@id":"https:\/\/www.bco-dmo.org\/dataset\/833453"}],"http:\/\/ocean-data.org\/schema\/identifier":[{"@value":"_:Identifier833453"}],"http:\/\/ocean-data.org\/schema\/datasetTitle":[{"@value":"Original recordings of reef soundscapes and recordings of playbacks from coral reefs in St. John, U.S. Virgin Islands collected between 2013 to 2017","@language":"en-US"}],"http:\/\/ocean-data.org\/schema\/abstract":[{"@value":"Original recordings of reef soundscapes and recordings of playbacks used in Suca et al. 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