Underwater temporary threshold shift induced by octave-band noise in three species of pinniped
D Kastak, RJ Schusterman, BL Southall… - The Journal of the …, 1999 - pubs.aip.org
Pure-tone sound detection thresholds were obtained in water for one harbor seal (Phoca
vitulina), two California sea lions (Zalophus californianus), and one northern elephant seal
(Mirounga angustirostris) before and immediately following exposure to octave-band noise.
Additional thresholds were obtained following a 24-h recovery period. Test frequencies
ranged from 100 Hz to 2000 Hz and octave-band exposure levels were approximately 60–
75 dB SL (sensation level at center frequency). Each subject was trained to dive into a noise …
vitulina), two California sea lions (Zalophus californianus), and one northern elephant seal
(Mirounga angustirostris) before and immediately following exposure to octave-band noise.
Additional thresholds were obtained following a 24-h recovery period. Test frequencies
ranged from 100 Hz to 2000 Hz and octave-band exposure levels were approximately 60–
75 dB SL (sensation level at center frequency). Each subject was trained to dive into a noise …
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