Auditory Threshold and Critical Ratio of Black Rockfish Sebastes schlegeli.
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- Motomatsu Keiichiro
- Faculty of Fisheries, Hokkaido University
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- Hiraishi Tomonori
- Faculty of Fisheries, Hokkaido University
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- Yamamoto Katsutaro
- Faculty of Fisheries, Hokkaido University
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- Nashimoto Katsuaki
- Faculty of Fisheries, Hokkaido University
Bibliographic Information
- Other Title
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- クロソイの聴覚しきい値と臨界比
- クロソイの聴覚閾値と臨界比
- クロソイ ノ チョウカク イキチ ト リンカイヒ
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Abstract
The auditory threshold of the black rockfish Sebastes schlegeli was determined by heartbeat conditioning using six pure tone stimuli from 100Hz to 1000Hz, which was coupled with an electric shock. In order to measure the critical ratio, noise was projected to stable spectrum levels at all test frequencies of background noise. Black rockfish could hear a sound in the frequency range from 100Hz to 1000Hz, with greatest sensitivity of 90.7dB at 200Hz. The threshold at 500Hz was higher than others. Until 500Hz the critical ratio increased from 29.7dB to 59.8dB. These results show that the auditory sensitivity of the black rockfish at 500Hz is poor.
Journal
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- NIPPON SUISAN GAKKAISHI
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NIPPON SUISAN GAKKAISHI 62 (5), 785-790, 1996
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390282681388167296
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- NII Article ID
- 10004850613
- 10004849928
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- NII Book ID
- AN00193422
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- ISSN
- 1349998X
- 00215392
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- NDL BIB ID
- 4029278
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed