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为获得钓渔业方面有价值的基本知识,作者使用水下接触电子管观察了鲐鱼和竹筴鱼在灯光下和黑暗中对静止饵料的吞饵活动,观察结果如下:1,这两种鱼在黑暗中如同在灯光下一样,均能聚集在静止饵料周围且都有吞饵活动.2.竹笑鱼在灯光下的吞饵次数高于在黑暗中吞饵次数.鲐鱼则反之.3.鲐鱼出现这一情况的原因,可认为是由于饵料扎装于钩上的方法不妥所引起.4.使用饵料的鲜度对两种鱼的吞饵活动均有很大影响,其吞饵次数随着时间的推移按比例减少.鲜度最好的饵料能引起最多的吞饵活动.5.根据试验结果,可得出的结论是:就钓渔业而言,将饵料扎装于钓钩上时应十分仔细,且饵料要尽可能的经常调换.
In order to obtain a valuable basic knowledge of fishing, the author observed the swallowing activity of anchovy and mackerel on resting food in the light and darkness using underwater contact tubes. The observations are as follows: 1. The two kinds of fish are in darkness As in the light, can gather around the static bait and have swallowed activity.2.Looking fish in the light of swallowing the number of times higher than the number of swallowed in the dark. A reason for the situation can be considered due to improper method of barb attached to the hook caused by the use of 4. The freshness of the use of food on the swallowing activities of both species have a great impact on the number of swallowed over time The proportionate decrease in migration.The best freshness bait can cause the most swallowing activity.5 According to the test results, it can be concluded that for the fishing industry, the bait should be carefully attached to the fishing hook, And feed as often as possible to change.