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在野外或室内研究中,对小鱼活样本的测量和识别是经常遇到的困难。手提和离水时间过长常导致高的死亡率。本文所描述的适用于小鱼的测量管(见附图),可在不伤害鱼的情况下,对小鱼迅速测量和鉴定。该测量管由一把柔韧的尺和一个与塑料漏斗牢固连接的平底玻璃试管组成。
In field or laboratory studies, the measurement and identification of live fish samples is a frequently encountered difficulty. Excessive time on hand and away from water often leads to high mortality rates. The measuring tube for small fish described in this article (see attached) can be used to quickly measure and identify small fish without damaging the fish. The measuring tube consists of a flexible ruler and a flat glass test tube that is firmly connected to the plastic funnel.