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- W2506608997 abstract "【The author investigated the relation between the catches of tuna species and the distribution of horizontal mean temperature at the Jepth of 10m and of vertical temperture sections in the different fishing grounds, using the date of catches in 1980, showing a relative good ones during six years from 1975 to 1980, and of oceanographic observations. Yellowfin and bigeye are mainly caught in South Equatorial Current regions including equatorial upwelling region in 5 $^{circ}$ N to 5 $^{circ}$ S, and albacore is mainly caught in Subtropical region in 20 $^{circ}$ 5 to 40 $^{circ}$ 5. The good fishing grounds of yellowfin and bigeye are made in the depth layer of 100 m to 250 m and temperature of 15 $^{circ}$ C to 26 $^{circ}$ C having a smooth gradient of thermocline in the Central Pacific between 180 $^{circ}$ and 1500W. But albacore is caught well in which the temperature of thermocline ranges from 100e to 25 $^{circ}$ C and its gradient very smoothly. Approaching to the American Continent, the catches of yellowfin and big eye decrease because the thermocline becomes shallower and steeper at Eastern Pacific Region between 1500 and 800W.】" @default.
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- W2506608997 date "1986-01-01" @default.
- W2506608997 modified "2023-09-24" @default.
- W2506608997 title "태평양의 다랑어 ( 참치 ) 어획량과 수온 분포와의 관계" @default.
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