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本文以椎骨作为鉴定年龄的材料,研究了台湾海峡及其邻近海区扁舵鲣的生长与死亡的特性。其叉长与椎体半径的关系式为L=3.5517+7.6183R,叉长与纯体重(W)和总体重(w′)的关系式分别为W=2.505×10~(-6)L~(3.3193)和W′=1.658×10~(-(?))L~(3.4065)。生长参数L_∞=484.44mm,W_∞=2050.76g,K=0.5109,t_0=-0.3598,体重生长拐点在1.4461龄。瞬时总死亡率、瞬时自然死亡率和瞬时捕捞死亡率分别为1.1368、0.9040和0.2328。开发率为0.2048,属轻度开发的鱼类资源。
In this paper, vertebrae were used as materials for identification of age, and the characteristics of growth and death of the flat-faced rudder 台 in the Taiwan Strait and its adjacent sea areas were studied. The relationship between fork length and vertebral body radius is L = 3.5517 + 7.6183R, and the relationship between fork length and pure body weight (W) and total body weight (W ’) are W = 2.505 × 10 ~ (-6) (3.3193) and W ’= 1.658 × 10 ~ (- (?)) L ~ (3.4065). Growth parameters L_∞ = 484.44mm, W_∞ = 2050.76g, K = 0.5109, t_0 = -0.3598, body weight growth inflection point at 1.4461. The instantaneous total mortality, instantaneous natural mortality and instantaneous fishing mortality were 1.1368, 0.9040 and 0.2328 respectively. Development rate of 0.2048, is a mild development of fish resources.