음향 실험 및 모델 기법을 이용한 도루묵 (Arctoscopus japonicus)의 음향산란반사강도 특성
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2015.08
- 9페이지/ 어도비 PDF
- 가격 4,000원
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국수산해양기술학회(구 한국어업기술학회)
ㆍ수록지정보 : 수산해양기술연구 / 51권 / 3호
ㆍ저자명 : 이형빈, 이경훈, 윤은아, 황강석, 최정화, 박태건
영어 초록
Acoustic target strength (TS) measurement and theoretical acoustic scattering models were applied to estimate the TS for assessing the fish biomass. TS measurement was made of ex situ sailfin sandfish Arctoscopus japonicus at 70 and 120 kHz, and then compared to backscatter model prediction. The live sandfish was tethered in seawater using monofilament lines. Measurements were made versus incidence angle, −50 to 50 relative to dorsal aspect directions. Distorted wave Born approximation (DWBA) model was used to calculated TS pattern. The TS values of sandfish (body length: 16.2 cm) at 70 and 120 kHz were ‒66.94 dB and ‒64.45 dB, respectively, and were about 20 dB lower than TS of other fishes in Korea waters. These TS levels were distributed within the range of the theoretical TS. Ex situ measurement and theoretical TS may be applied to improve acoustical detection and biomass estimation of the sandfish, and is necessary to measure with various lengths.
참고 자료
없음
"수산해양기술연구"의 다른 논문
더보기 (5/10)