Observation Environment Quotes

"A long-term acoustic recording system was used to record 10 s of sound every 10 min within the frequency range of 0–1,250 Hz. Diel patterns in fish sound production were well defined throughout the study period."

Full Description

"Maximum levels of drumming activity in the evening, generally from 1800 to 2200 hours, have been noted in the field for a number of sciaenid species, including the orangemouth corvina C. xanthulus (Fish and Cummings 1972), spotted seatrout, black drum Pogonias cromis (Mok and Gilmore 1983; Saucier and Baltz 1993; Connaughton and Taylor 1995), silver perch (Mok and Gilmore 1983; Connaughton and Taylor 1995), white flower croaker Nibea albiflora, and white croaker Argyrosomus argentatus (Takemura et al. 1978; Connaughton and Taylor 1995). Many of these authors also reported that the sound level dropped substantially by early morning (;0000–0300 hours)."

Observation Environment Quotes

"A long-term acoustic recording system was used to record 10 s of sound every 10 min within the frequency range of 0–1,250 Hz. Diel patterns in fish sound production were well defined throughout the study period."

Sound Name Quotes

"Maximum levels of drumming activity in the evening, generally from 1800 to 2200 hours, have been noted in the field for a number of sciaenid species, including the orangemouth corvina C. xanthulus (Fish and Cummings 1972), spotted seatrout, black drum Pogonias cromis (Mok and Gilmore 1983; Saucier and Baltz 1993; Connaughton and Taylor 1995), silver perch (Mok and Gilmore 1983; Connaughton and Taylor 1995), white flower croaker Nibea albiflora, and white croaker Argyrosomus argentatus (Takemura et al. 1978; Connaughton and Taylor 1995). Many of these authors also reported that the sound level dropped substantially by early morning (;0000–0300 hours)."

Full Description

"Chorusing events dominated by sand seatrout Cynoscion arenarius reached a mean daily (24-h period) maximum sound pressure level of 117 dB relative to a reference effective pressure of 1 lPa. Mean daily chorus start and end times were 1726 and 0210 hours Eastern Standard Time, respectively, and chorus events lasted an average of 8.7 h."

"Call duration and pulse period estimated from waveform and spectral analyses of the laboratoryrecorded sand seatrout were 174 and 43.5 ms, respectively (Figure 6). For this same individual, the received call level was calculated at 130 dB relative to 1 lPa. The mean call duration of 72 field-recorded calls was 234.8 ms (SD = 93 ms), and the pulse period was 45.8 ms (SD = 5.5 ms). The number of pulses per call from field recordings ranged from 2 to 12 (mode = 6 pulses/call). A comparison between the laboratory recording and a selected field recording with the same number of pulses (4) is shown in Figure 6C and D. Both laboratory and field-recorded calls had a dominant frequency around 350 Hz. The sound recorded in the laboratory had an initial peak in SPL that was not as prominent as the SPL peak in the field recordings."

"Sand seatrout produce a purring sound very similar to the call of the weakfish, a closely related species occurring on the Atlantic coast."

"In this study, we calculated a rate of 21.8 pulses/s from field-recorded calls of sand seatrout (n = 72), which had 2–12 pulses/call."

Observation Environment Quotes

"A long-term acoustic recording system was used to record 10 s of sound every 10 min within the frequency range of 0–1,250 Hz. Diel patterns in fish sound production were well defined throughout the study period. "

"To validate the presence of sand seatrout C. arenarius, we recorded the call of a captive individual (standard length _ 189 mm) for comparison with fish calls recorded in the field."

Sound Name Quotes

"Chorusing events dominated by sand seatrout Cynoscion arenarius reached a mean daily (24-h period) maximum sound pressure level of 117 dB relative to a reference effective pressure of 1 uPa. Mean daily chorus start and end times were 1726 and 0210 hours Eastern Standard Time, respectively, and chorus events lasted an average of 8.7 h. "

"Call duration and pulse period estimated from waveform and spectral analyses of the laboratoryrecorded sand seatrout were 174 and 43.5 ms, respectively (Figure 6). For this same individual, the received call level was calculated at 130 dB relative to 1 lPa. The mean call duration of 72 field-recorded calls was 234.8 ms (SD = 93 ms), and the pulse period was 45.8 ms (SD = 5.5 ms). The number of pulses per call from field recordings ranged from 2 to 12 (mode = 6 pulses/call). A comparison between the laboratory recording and a selected field recording with the same number of pulses (4) is shown in Figure 6C and D. Both laboratory and field-recorded calls had a dominant frequency around 350 Hz. The sound recorded in the laboratory had an initial peak in SPL that was not as prominent as the SPL peak in the field recordings."

"Sand seatrout produce a purring sound very similar to the call of the weakfish, a closely related species occurring on the Atlantic coast."

Full Description

"Silver perch calls were recorded only during the latter portion of the evening (typically after midnight) as the chorus faded (Figure 7)."

Observation Environment Quotes

"A long-term acoustic recording system was used to record 10 s of sound every 10 min within the frequency range of 0–1,250 Hz. Diel patterns in fish sound production were well defined throughout the study period."

Sound Name Quotes

"Maximum levels of drumming activity in the evening, generally from 1800 to 2200 hours, have been noted in the field for a number of sciaenid species, including the orangemouth corvina C. xanthulus (Fish and Cummings 1972), spotted seatrout, black drum Pogonias cromis (Mok and Gilmore 1983; Saucier and Baltz 1993; Connaughton and Taylor 1995), silver perch (Mok and Gilmore 1983; Connaughton and Taylor 1995), white flower croaker Nibea albiflora, and white croaker Argyrosomus argentatus (Takemura et al. 1978; Connaughton and Taylor 1995). Many of these authors also reported that the sound level dropped substantially by early morning (;0000–0300 hours)."