Hearing Thresholds from Toadfish,Opsanus tau, Measured in the Laboratory and Field
作者:
James F. Fish,
George C. Offutt,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1972)
卷期:
Volume 51,
issue 4B
页码: 1318-1321
ISSN:0001-4966
年代: 1972
DOI:10.1121/1.1912977
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Laboratory and field experiments are described in which toadfish hearing was investigated. The threshold to tonal stimuli determined in the laboratory using a conditional heart rate technique agreed closely with the field‐determined threshold using an unconditional behavioral response. Below 150 Hz, the hearing threshold was about 100 dBre1 μN/m2. Above 200 Hz, it increased rapidly at about 22 dB/oct. In addition to the tonal threshold experiments, a threshold to prerecorded playbacks of toadfish sounds was measured in the field. This threshold was about 15 dB higher than the tonal threshold in the same frequency range.
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