论文部分内容阅读
生产实践证明,高温季节捕捞成鱼,应该在夜间或凌晨(天亮之前)进行,这时气温相对较低,有利于鱼的保鲜。能提高经济效益。捕捞时,应掌握如下技术要点:1、如果用拉网捕捞,白天就要作好准备工作,把鱼塘水面上有碍拉网的杂物清理干净。2、如果用柔软的维纶渔网,网的高度应尽量与鱼塘水深相吻合。3、若是轮捕轮放,每次只能捕捞总鱼量的10%~15%,不能将鱼塘里的鱼一网打尽。一般15天左右围网一次,两次捕捞的时间不能太短,以免影响鱼的正常生长。4、捕捞的前一天不要投喂饵料,遇到鱼
Production practice has proved that the fish caught during the hot season, should be at night or early morning (before dawn), when the temperature is relatively low, is conducive to the preservation of fish. Can improve economic efficiency. Fishing, should have the following technical points: 1, if you pull the net fishing, we must make preparations during the day to remove the debris on the surface of the fish pond clean debris. 2, if the soft vinylon fishing nets, the height of the network should be consistent with the depth of the pond. 3, if the round catch round, each time can only catch 10% of the total amount of fish 15%, can not catch the fish in the pond. Sewerage generally about 15 days time, two fishing time can not be too short, so as not to affect the normal growth of fish. 4, the day before fishing do not feed bait, met the fish