スケトウダラの聴覚特性
The auditory threshold levels of walleye pollock Theragra chalcogramma (Pallas) were measured in order to determine the optimum conditions for marine ranching utilizing underwater sound. The auditory characteristics of walleye pollock were determined by heart beat conditioning using 8 frequencies of...
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日本水産学会
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Online Access: | http://hdl.handle.net/2115/35563 https://doi.org/10.2331/suisan.61.159 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/35563 2023-05-15T18:32:50+02:00 スケトウダラの聴覚特性 Auditory characteristics of walleye pollock Theragra chalcogramma (Pallas) 朴, 容石 飯田, 浩二 向井, 徹 桜井, 泰憲 http://hdl.handle.net/2115/35563 https://doi.org/10.2331/suisan.61.159 jpn jpn 日本水産学会 http://hdl.handle.net/2115/35563 日本水産学会誌, 61(2): 159-163 http://dx.doi.org/10.2331/suisan.61.159 © 1995 公益社団法人日本水産学会 © 1995 The Japanese Society of Fisheries Science スケトウダラ 聴覚閾値 条件付け 心電図 660 article fthokunivhus https://doi.org/10.2331/suisan.61.159 2022-11-18T01:01:42Z The auditory threshold levels of walleye pollock Theragra chalcogramma (Pallas) were measured in order to determine the optimum conditions for marine ranching utilizing underwater sound. The auditory characteristics of walleye pollock were determined by heart beat conditioning using 8 frequencies of pure tone stimuli from 60 to 1, 000Hz coupled with an electric shock. Pure tone conditioning stimuli were presented to the fish for 5 seconds with a 0.1 second 12V DC electric shock applied 3 seconds after the start of the sound projection. The positive response to the pure tone stimulus of the conditioned fish consisted of an inhibition of one or more heartbeats. Results show that tested walleye pollock are sensitive to pure tones in the frequency range from 60 to 1kHz, with greatest sensitivity in the range from 120 to 200Hz. At the most sensitive frequencies, the mean thresholds were between 97.7 and 100.2dB (re 1μPa) under a background noise level between 55 and 75dB (re 1μPa/√Hz). Hearing ability declined gradually with increasing frequency above 400Hz. The upper limit of audible frequency is believed to be about 1kHz. Article in Journal/Newspaper Theragra chalcogramma Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) NIPPON SUISAN GAKKAISHI 61 2 159 163 |
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Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
Japanese |
topic |
スケトウダラ 聴覚閾値 条件付け 心電図 660 |
spellingShingle |
スケトウダラ 聴覚閾値 条件付け 心電図 660 朴, 容石 飯田, 浩二 向井, 徹 桜井, 泰憲 スケトウダラの聴覚特性 |
topic_facet |
スケトウダラ 聴覚閾値 条件付け 心電図 660 |
description |
The auditory threshold levels of walleye pollock Theragra chalcogramma (Pallas) were measured in order to determine the optimum conditions for marine ranching utilizing underwater sound. The auditory characteristics of walleye pollock were determined by heart beat conditioning using 8 frequencies of pure tone stimuli from 60 to 1, 000Hz coupled with an electric shock. Pure tone conditioning stimuli were presented to the fish for 5 seconds with a 0.1 second 12V DC electric shock applied 3 seconds after the start of the sound projection. The positive response to the pure tone stimulus of the conditioned fish consisted of an inhibition of one or more heartbeats. Results show that tested walleye pollock are sensitive to pure tones in the frequency range from 60 to 1kHz, with greatest sensitivity in the range from 120 to 200Hz. At the most sensitive frequencies, the mean thresholds were between 97.7 and 100.2dB (re 1μPa) under a background noise level between 55 and 75dB (re 1μPa/√Hz). Hearing ability declined gradually with increasing frequency above 400Hz. The upper limit of audible frequency is believed to be about 1kHz. |
format |
Article in Journal/Newspaper |
author |
朴, 容石 飯田, 浩二 向井, 徹 桜井, 泰憲 |
author_facet |
朴, 容石 飯田, 浩二 向井, 徹 桜井, 泰憲 |
author_sort |
朴, 容石 |
title |
スケトウダラの聴覚特性 |
title_short |
スケトウダラの聴覚特性 |
title_full |
スケトウダラの聴覚特性 |
title_fullStr |
スケトウダラの聴覚特性 |
title_full_unstemmed |
スケトウダラの聴覚特性 |
title_sort |
スケトウダラの聴覚特性 |
publisher |
日本水産学会 |
url |
http://hdl.handle.net/2115/35563 https://doi.org/10.2331/suisan.61.159 |
genre |
Theragra chalcogramma |
genre_facet |
Theragra chalcogramma |
op_relation |
http://hdl.handle.net/2115/35563 日本水産学会誌, 61(2): 159-163 http://dx.doi.org/10.2331/suisan.61.159 |
op_rights |
© 1995 公益社団法人日本水産学会 © 1995 The Japanese Society of Fisheries Science |
op_doi |
https://doi.org/10.2331/suisan.61.159 |
container_title |
NIPPON SUISAN GAKKAISHI |
container_volume |
61 |
container_issue |
2 |
container_start_page |
159 |
op_container_end_page |
163 |
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1766217035650433024 |