- Volume 52 Issue 4
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Properties of aggregation and spatial distribution of fish in the South Sea of Korea using hydroacoustic data
수산음향기법의 주파수에 따른 남해안의 어류의 군집 및 공간분포 특징
- HWANG, Kangseok (Fisheries Resources Management Division, National Institute of Fisheries Science) ;
- PARK, Jeong-Ho (Fisheries Resources Management Division, National Institute of Fisheries Science) ;
- LEE, Jeonghoon (Fisheries Resources Management Division, National Institute of Fisheries Science) ;
- CHA, Hyung-Kee (Fisheries Resources Management Division, National Institute of Fisheries Science) ;
- PARK, Junseong (Department of Maritime Police and Production System/Institute of Marine Industry, Gyeongsang National University) ;
- KANG, Myounghee (Department of Maritime Police and Production System/Institute of Marine Industry, Gyeongsang National University)
- 황강석 (국립수산과학원 연근해자원과) ;
- 박정호 (국립수산과학원 연근해자원과) ;
- 이정훈 (국립수산과학원 연근해자원과) ;
- 차형기 (국립수산과학원 연근해자원과) ;
- 박준성 (경상대학교 해양경찰시스템학과/해양산업연구소) ;
- 강명희 (경상대학교 해양경찰시스템학과/해양산업연구소)
- Received : 2016.08.09
- Accepted : 2016.11.02
- Published : 2016.11.30
Properties of aggregation and spatial distribution of fish were examined based on three lines in the South Sea of Korea using three frequencies (18, 38, and 120 kHz) of a scientific echosounder. The vertical distribution of fish was displayed using acoustic biomass namely nautical area scattering coefficient (NASC). As a result, at 120 kHz high NASC showed from water surface to 20 meters in deep while at 18 and 38 kHz very high NASC presented in 70 ~ 90 meters in depth, especially at line 3. Among three lines, the line 2 had lowest NASC. The horizontal distribution of fish using three frequencies together exhibited high NASC between the eastern South Sea and center of South Sea. In especial, NASC (
Supported by : 국립수산과학원
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