Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)
- Volume 20 Issue 1
- /
- Pages.11-16
- /
- 1984
- /
- 2671-9940(pISSN)
- /
- 2671-9924(eISSN)
Measurement of Backscattering Cross Sections of Live Fish
활어의 후방산란 단면적 측정
- Park, Hae-Hun (National Fisheries University of Pusan) ;
- Jang, Ji-Won (National Fisheries University of Pusan)
- Published : 1984.03.01
Abstract
The backscattering cross sections of live fish and the probability density function of fish echoes were measured at side aspect. The measurements were made at 40 and 170 in KHz. The specimen fishes on the experiments were two catfish-total length of 16.8cm(L/λ is about 4.5, where the L is length, the λ is the sound wavelength) and 23cm(L/λ, ~6.1), a carp(Cyprinus carpio) of 17.5cm(L/λ, ~4.7), a Telapia(Tilapia mossambica)of 19.5cm(L/λ, ~5.2) and several fishes. Those lengths ranged from 10.7 to 24.0cm. The results of the measured maximum backscattering cross sections were 5.62
어군량의 추정에 필요한 활어체의 후방산란단면적을 실험수조 내에서 40KHz와 170KHz의 음파로써 담수어인 메기.잉어.틸라피아, 해수어인 볼낚.농어.숭어.용치놀래기 등에 대해 측면(side aspect)에서 각각 75~216회 측정한 결과는 다음과 같다. 1. 전장(total length)이 10.7~24.0cm인 어체들의 후방산란단면적은 5.62
Keywords