On the Fishing Grounds of Buse and Oceanographic Condition in the Yellow Sea and the East China Sea

동지나해${\cdot}$황해의 부세어장과 해황과의 관계

The relationship between the fishing grounds of Buse, Pseudosciaena crocea (Richardson), and oceanographic condition in the Yellow Sea and the East China Sea is studied on the basis of the data of the catches of stow net fishery (Fisheries Research and Development Agency, $1967{\sim}1979$) and the oceanographic observation data. The main fishing grounds of the Buse was concentrated in southwestern area of Cheju island and the best catch was in April. CPUE was less than 50 kg/haul in the most pare of fishing grounds, there-fore the conditions of fishing grounds generally were poor and coefficients of variance were also large. In the main fishing period, April, the fishing grounds were generally distributed in colder region of $8^{\circ}C$ through $10^{\circ}C$ isotherm at 50 m depth, than Yellow croaker and Gangdali which were distributed between $10^{\circ}C$ and $15^{\circ}C$.

동지나해${\cdot}$황해의 안강망에 의한 어획통계 자료($1967{\sim}1979$) 및 해양관측 자료를 이용하여 부세의 어획량, 어장의 변동과 수온 구조와의 관계를 조사하였다. 그 결과 부세의 주요 어장은 제주도 남서방해역에 집중하였으며, 주어기는 4월이었다. 또한 CPUE는50kg/haul 이상의 해역이 거의 없어 전반적으로 어장이 좋지 않았으며, 변동계수(C.V.)도 컸다. 특히 주어기인 4월에는 수심 50 m의 $10{\sim}8^{\circ}C$ 등온선역에 어장이 분포하였고, 같은 민어과인 참조기${\cdot}$강달이 등에 비해 냉수측에 분포하였다.