A Basic Study on Acoustic Conditioning of Fish Suitable for a Marine Ranch -1. The Sound Sensitivity of Japanese Parrot Fish Oplegnathus fasciatus-

Ho, Kim Seong; Heon, Lee Chang; Ok, Seo Du; Ju, Kim Yong

doi:10.5657/kfas.2002.35.6.563

Korean Journal of Fisheries and Aquatic Sciences

2002

DOI: 10.5657/kfas.2002.35.6.563

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A Basic Study on Acoustic Conditioning of Fish Suitable for a Marine Ranch -1. The Sound Sensitivity of Japanese Parrot Fish Oplegnathus fasciatus-

Kim Seong Ho¹,

Lee Chang Heon²,

Seo Du Ok³

et al.

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Cited by 5 publications

References 3 publications

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Hearing Ability of Sharp Toothed Eel Muraenesox cinereus caught in the Southern Korean Waters

Ahn¹,

Lee²

2013

Journal of Fisheries and Marine Sciences Education

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The auditory thresholds for 7 specimens of the sharp toothed eel Muraensox cinerus were measured at 5 frequencies by heartbeat conditioning method using pure tones coupled with a delayed electric shock. The audible range of the sharp toothed eel extended from 80Hz to 300Hz with the best sensitivity around 80Hz and 100Hz. In addition, the auditory thresholds over 200Hz increased rapidly. The mean auditory thresholds of the sharp toothed eel at the test frequencies of 80Hz, 100Hz, 200Hz and 300Hz were 87dB, 86dB, 105dB and 126dB, respectively. Auditory masking was determined for the sharp toothed eel by using masking stimuli with the spectrum level range of about 70~80dB (0dB re 1  ). According to white noise level, the auditory thresholds increased as compared with thresholds in a quiet background noise. The noise spectrum level at the start of masking was distributed at the range of about 64dB within 80~100Hz. Critical ratio ranged from minimum 24dB to maximum 40dB at test frequencies of 80Hz~200Hz.

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Hearing Ability of Sharp Toothed Eel Muraenesox cinereus caught in the Southern Korean Waters

Ahn¹,

Lee²

2013

Journal of Fisheries and Marine Sciences Education

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Hearing Ability of Bambooleaf wrasse Pseudolabrus japonicus caught in the coast of Jeju

Choi¹,

Park²,

Lee³

2013

Journal of Fisheries and Marine Sciences Education

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In order to improve the availability of underwater sound by the fundamental data on the hearing ability, the auditory thresholds for the bambooleaf wrasse pseudolabrus japonicus were determined at 80Hz, 100Hz, 200Hz, 300Hz, 500Hz and 800Hz by heartbeat conditioning method using pure tones coupled with a delayed electric shock. The audible range of the bambooleaf wrasse extended from 80Hz to 800Hz with the best sensitivity around 100Hz and 200Hz. In addition, the auditory thresholds over 300Hz increased rapidly. The mean auditory thresholds of the bambooleaf wrasse at the test frequencies, 80Hz, 100Hz, 200Hz, 300Hz, 500Hz and 800Hz were 100dB, 95.1dB, 94.8dB, 109dB, 121dB and 125dB, respectively. Auditory critical ratios for the bambooleaf wrasse were measured using masking stimuli with the spectrum level range of about 70, 74, 78dB (0dB re 1  ). According to white noise level, the auditory thresholds increased as compared with thresholds in a quiet background noise. The Auditory masking by the white noise spectrum level was stared over about 60dB within 80~300Hz. Critical ratios to be measured at frequencies from 80Hz to 300Hz were minimum 33dB and maximum 39dB.

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Auditory Characteristics of Tiger shark Scyliorhinus torazame caught in the Coast of jeju Island

Ahn¹,

Choi²,

Lee³

2011

Bulletin of the Korean society of Fisheries Technology

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In order to obtain the fundamental data about the behavior of sharks by underwater audible sound, this experiment was carried out to investigate the auditory characteristics of tiger shark Scyliorhinus torazame which was caught in the coast of Jeju Island by heart rate conditioning method using pure tones coupled with a delayed electric shock. The audible range of tiger shark extended from 80Hz to 300Hz with a peak sensitivity at 80Hz including less sensitivity at 300Hz. The mean auditory thresholds of tiger shark at the frequencies of 80Hz, 100Hz, 200Hz and 300Hz were 90dB, 103dB, 94dB and 115dB, respectively. The positive response of tiger shark was not evident after the sound projection of over 300Hz. At the results, the sensitive frequency range of tiger shark is narrower than that of fish that has swim bladder. In addition, it is assumed that the most sensitive frequency in auditory thresholds of Chondrichthyes is lower than that of Osteichthyes. Critical ratios of tiger shark measured in the presence of masking noise in the spectrum level range of about 60-70dB (0dB re 1mPa/ Hz) increased from minimum 27dB to maximum 39dB at test frequencies of 80-200Hz. The noise spectrum level at the start of masking was distributed at the range of about 65dB within

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A Basic Study on Acoustic Conditioning of Fish Suitable for a Marine Ranch -1. The Sound Sensitivity of Japanese Parrot Fish Oplegnathus fasciatus-

Cited by 5 publications

References 3 publications

Hearing Ability of Sharp Toothed Eel Muraenesox cinereus caught in the Southern Korean Waters

Hearing Ability of Sharp Toothed Eel Muraenesox cinereus caught in the Southern Korean Waters

Hearing Ability of Bambooleaf wrasse Pseudolabrus japonicus caught in the coast of Jeju

Auditory Characteristics of Tiger shark Scyliorhinus torazame caught in the Coast of jeju Island

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