한국음향학회:학술대회논문집 (Proceedings of the Acoustical Society of Korea Conference)
- 한국음향학회 2000년도 하계학술발표대회 논문집 제19권 1호
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- Pages.233-236
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- 2000
Application of sound scattering models to swimbladdered fish, red seabream (Chrysophys major)
- Kang Donhyug (Ocean acoustics lab. Department of Earth and Marine Sciences, Hanyang University) ;
- Hwang Doojin (Department of Marine sciences and Technology, Yosu National University) ;
- Na Jungyul (Ocean acoustics lab. Department of Earth and Marine Sciences, Hanyang University) ;
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Kim Suam
(Department of Marine Biology, Pukyong National University)
- 발행 : 2000.07.07
초록
The acoustical response of fish depends on size and physical structure na, most important, on the presence or absence of a swimbladder. Acoustic scattering models for swimbladdered fish represent a fish by an ideal pressure-release surface having the size and shape as the swimbladder. Target strength experiments of red seabream (Chrysophrys major) have been conducted using 38 (split-beam), 120 (split-beam) and 200kHz (dual-beam) frequencies. At each start of each experiment, the live fish are placed in the cage at the surface, then the cage is lowed to about
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