한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제33권6호
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- Pages.581-584
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- 2000
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
수중 가청음에 의한 볼락의 청각 능력 -1. 청각 문턱치-
The Hearing Ability of Black Rockfish Sebastes inermis to Underwater Audible Sound -1. The Auditory Threshold-
- LEE Chang-Heon (Cheju National University) ;
- Seo Du-Ok (Cheju National University)
- 발행 : 2000.11.01
초록
제주 연안역에 서식하고 있는 볼락의 수중음에 대한 청각 특성을 파악하여 수중음에 대한 어군의 행동양상을 파악할 수 있는 기초자료를 제공할 목적으로 측정주파수
In order to obtain the fundamental data about method of luring fish schools by underwater audible sound, the auditory threshold of black rockfish Sebastes inermis on the coast of Cheju Island was investigated by heartbeat conditioning technique using pure tones coupled with a delayed electric shock, The audible range of black rockfish extended from 80 Hz to 800 Hz with a peak sensitivity at 300 Hz. The mean auditory thresholds of black rockfish at the frequencies of 80 Hz, 100 Hz, 200 Hz, 300 Hz, 500 Hz and 800 Hz were 102 dB, 103 dB, 99 dB, 96 dB, 116 dB and 122 dB, respectively, As the frequency became higher than 300 Hz, the auditory threshold increased rapidly.