鱼类浮头是泛塘的前兆,是高产鱼池生长旺季常见的一种现象。浮头往往发生在半夜或凌晨,给观察和判断浮头的轻重带来一定的困难。笔者根据多年生产实践,摸索了一套夜间观察鱼类浮头行之有效的方法,介绍如下。1.人蹲在鱼池下风处,迎着月光,贴近水面观察,如发现有阵阵水花,且有少量野 Fish floating head is a precursor to Pan Tong, is a common phenomenon in the growing season of high-yield fish ponds. Floating head often occurs in the middle of the night or early morning, to some degree of difficulty in observing and judging the weight of floating head. The author based on years of production practice, groping a set of fish floating at night to observe the effective method described below. 1. People crouched in the fish pond leeward, facing the moonlight, close to the water surface observation, found that there are bursts of water, and a small amount of wild