Age and growth of the hexagrammid fish Hexagrammos agrammus at Aburatsubo, Japan
Age and growth of the hexagrammid fish Hexagrammos agrammus at Aburatsubo, Japan
复制标题
日本油坪的六棱鱼 Hexagrammos agrammus 的年龄和生长
DOI：
10.2331/suisan.57.1293
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
M. Shimizu
中科院分区：
文献类型：
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作者：
Y. Kurita;M. Sano;M. Shimizu
油壶六棱鱼 Hexagrammos agrammus 的年龄和生长是根据 278 条鱼的耳石估算的。半透明区每年都会形成，其形成完成于一月至二月期间，此时是该物种在油壶产卵季节的末期。据估计，最年长的男性有5岁，最年长的女性有7岁。 von Bertalanffy 生长方程如下：男性，Lt=168.8[1-exp{-0.48(t+1.05)}]，女性，Lt=178.0[1-exp{-0.49(t+1.04)}]，其中 t 是年龄（以岁为单位），Lt 是 t 岁时的标准长度（以毫米为单位）。标记重捕实验和各年班月平均长度分析表明，黄花藻在春季生长较快，一般在2月至5月期间，其余季节生长缓慢。
Age and growth of the hexagrammid fish Hexagrammos agrammus from Aburatsubo were estimated from otoliths of 278 fish. A translucent zone was formed annually, and its formation was completed at a period between January and February, which is the end of the spawning season for this species at Aburatsubo. The oldest male was estimated to be 5 years old and the oldest female was 7 years old. The von Bertalanffy growth equations were as follows: males, Lt=168.8[1-exp{-0.48(t+1.05)}] and females, Lt=178.0[1-exp{-0.49(t+1.04)}], where t is age in years and Lt is standard length in mm at age t. A mark-recapture experiment and analysis of monthly mean length of each year class showed that the growth of H. agrammus is rapid in spring, generally between February and May, and slow in the remaining seasons.