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. 2020 Jun 16;9:e56760. doi: 10.7554/eLife.56760

Figure 3. Received levels in noise treatment calibration quantified as third-octave level bands in dB re 1 μPa RMS.

RLs are across third-octave band frequencies 400 Hz-20 kHz. The vessel was transiting at 800 rpm at ~100 m (range 85–113 m) distance to the SoundTrap, in 14 m water depth. 50th percentiles of control (purple line), low (yellow line), medium (red line) and high (blue line) vessel noise. Ambient noise 18th August (dark green): humpback whale male whale song absent. Ambient noise 18th September (medium green): peak whale season with song. Ambient noise 18th October (light green): towards the end of the whale season (integration bins 0.125 s). The transparent area around each percentile line corresponds to the 25th and 95th exceedance levels. Self-noise of the SoundTrap plotted as dashed black line.

Figure 3.

Figure 3—figure supplement 1. Noise treatment received levels quantified as third-octave level bands (TOLs) in dB re 1 μPa RMS in 6.8 m depth.

Figure 3—figure supplement 1.

Figure 3—figure supplement 2. Ambient noise recorded in Exmouth Gulf, Western Australia.

Figure 3—figure supplement 2.