Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 32 Issue 5
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- Pages.618-623
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- 1999
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
Relationship between SST Fronts and Purse-seine Fishing Grounds in the South-West Sea of Korea and the Northern Area of the East China Sea
한국 남$\cdot$ 서해 및 동중국해$\cdot$ 북부해역에 출현하는 표층수온전선과 선망어장과의 관계
- YANG Young Jin (College of Ocean Sciences, Cheju National University) ;
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KIM Sang Hyun
(College of Ocean Sciences, Cheju National University) ;
- RHO Hong Kil (College of Ocean Sciences, Cheju National University) ;
- JEONG Dong Gun (College of Ocean Sciences, Cheju National University)
- Published : 1999.09.01
Abstract
A relationship between SST (Sea Surface Temperature) fronts and formation of fishing grounds was examined using the data on fishing conditions obtained from 41 Korean purse-seiners during the period of 1991 to 1996. Good fishing grounds observed in the southern sea of Korea and the nothern area of the East China Sea were yearly found around the frontal zone and around the marginal area of Tsushima Current which was the periphery of fronts, Also, there were several fishing grounds, which are not related to the fronts. They can be classified into the following four types : The first type was found in the warm water pocket located in the western area of Cheju Island in winter. The second type was made in a intensive bending of isobathytherm with a higher temperature in the main stream of Tsushima Current between Cheju Island and the Goto Islands in winter. The third type was formed by the topographical vortex motion near the Tsushima Island in winter and spring. The fourth type was found at the area of the reflow Sea Warm Current in southwest sea of Korea between the costal front zone and the Yellow Bottom Cold Waters in summer and autumn.
표층 수온전선과 어장형성과의 관계를 규명하기 위하여 1991년부터 1996년까지 한국선망 41개 선단의 어획자료와 인공위성에 의해 관측된 표층수온자료로부터 구한 표층수온전선과의 관계를 분석 정리한 결과를 요약하면 다음과 같다. 남해 및 동중국해 북부 해역의 선망어장은 주년 전선대 및 그 주변 대마 난류수 연변부에서 좋은 어장이 형성되고 있지만 전선역어장 외에 동계에는 제주도 서쪽 해역의 Water pocket내의 난류역어장, 제주도와 고도열도 사이 등고수온선이 심한 굴곡부내의 대마난류 주류역 어장, 동
Keywords
- SST Fronts;
- Purse-seine fishing grounds;
- fishing conditions;
- the south and west sea of Korea;
- the northern area of the East China Sea