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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 405 - 413 (9page)
이용수
초록· 키워드
오류제보하기
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.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
D’Elia M / 2014 / Analysis of backscatter properties and application of classification procedures for the identification of small pelagic fish species in the Central Mediter
Foote KG. / 1980 / Importance of the swimbladder in acoustic scattering by fish: a comparison of gadoid and mackerel target strengths / J Acoust Soc Am 67 : 2084 ~ 2089
Forman KA / 2010 / Variability in the density and sound?speed of coastal zooplankton and nekton / ICES J Mar Sci 67 : 10 ~ 18
Greene CH / 1991 / Acoustic estimates of Antarctic krill / Nature 349 : 110 ~
Honkalehto T / 2011 / Using acoustic data from fishing vessels to estimate walleye pollock (Theragra chalcogramma) abundance in the eastern Bering Sea / Can J Fish Aquat Sci
Foote KG. / 1980 / Importance of the swimbladder in acoustic scattering by fish: a comparison of gadoid and mackerel target strengths / J Acoust Soc Am 67 : 2084 ~ 2089
Forman KA / 2010 / Variability in the density and sound?speed of coastal zooplankton and nekton / ICES J Mar Sci 67 : 10 ~ 18
Greene CH / 1991 / Acoustic estimates of Antarctic krill / Nature 349 : 110 ~
Honkalehto T / 2011 / Using acoustic data from fishing vessels to estimate walleye pollock (Theragra chalcogramma) abundance in the eastern Bering Sea / Can J Fish Aquat Sci
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