Red and White Muscle Activity of the Jack Mackerel Trachurus japonicus During Swimming.
Red and White Muscle Activity of the Jack Mackerel Trachurus japonicus During Swimming.
复制标题
竹荚鱼游泳期间的红肌和白肌活动。
DOI：
10.2331/suisan.59.745
复制
发表时间：
1993
影响因子：
0.4
通讯作者：
M. Inoue
中科院分区：
文献类型：
--
作者：
Gang Xu;T. Arimoto;M. Inoue
为研究竹荚鱼红肌和白色肌在游泳运动中的功能，解剖了竹荚鱼红肌和沿着肌在身体上的分布。使用电生理技术分析外侧肌的电活动。在鱼体的横切面上，红肌占总肌的比例在距吻部叉长的55%~ 65%之间的位置处达到最大值。红肌和白色肌分别占体重的5.1%和61%。白色肌肉的重量是红色肌肉的12倍。在肌电观察中，对于叉长为17.8cm的鱼，红肌在低速持续游泳时是活跃的，而白色肌在低于108 cm/s的速度下没有电活动。出现在肌电图仪中的放电脉冲被测量为三个分量：频率、幅度和持续时间。频率增加成比例的游泳速度在这两个肌肉。红肌的振幅随游泳速度的增加而增加的趋势比白色肌明显得多。随着游泳速度的增加，红肌的持续时间减少，而白色肌的持续时间增加。结果表明，竹荚鱼在持续游泳时仅使用红肌，而在6.4BL/s以上的爆发性游泳时，红肌和白色肌一起使用。
In order to examine the functions of the red and white muscle of jack mackerel Trachurus japonicus during swimming locomotion, the fish was dissected to observe muscle distribution along the body. The electrical activity of the lateral muscle was analyzed using an electrophysiological technique. The ratio of red muscle to total muscle in a transverse section of the fish body reached a maximum at a position between 55% and 65% of fork length from the snout. The red and white muscles accounted for 5.1% and 61% of the body weight respectively. The white muscle was 12 times as heavy as the red muscle. In the electromyographic observations, the red muscle was active in sustained swimming at low speeds, whereas there was no electrical activity from the white muscle at speeds below 108cm/s for fish of 17.8cm in fork length. The bursts of discharge appearing in the electromyograph were measured for three components: frequency, amplitude, and duration. The frequency increased in proportion to swimming speed in both muscles. The tendency for the amplitude to increase with swimming speed was much more remarkable in the red muscle than in the white muscle. The duration in the red muscle decreased, whereas in the white muscle it rose with the swimming speed. The results indicate that for jack mackerel only the red muscle is used in sustained swimming, while the white muscle is used during burst swimming above a threshold speed of 6.4BL/s, together with red muscle.