鱼类的游泳能力受许多环境因素的影响。在本项研究中,鱼类对水温的生理反映是依据它们输出的牵引功率值来判断的。下面是鱼在人工驯养条件下,进行功率测量所得的水温数据。把冷水鱼类中有代表性的两组硬头鳟,分别在12℃和19℃水温中驯养一个月。再把三组温水鱼类越南鱼,分别驯养在20℃、26℃和32℃温水中,并在各自水 Fish’s ability to swim is affected by many environmental factors. In this study, the physiological responses of fish to water temperature were judged on the basis of their output of traction power. The following is the fish under artificial domesticated conditions, the power measurement of water temperature data. Two groups of hard-headed trout, representative of cold-water fish, were domesticated at 12 ° C and 19 ° C for one month respectively. Then three groups of warm-water fish, Vietnamese fish, were domesticated in 20 ℃, 26 ℃ and 32 ℃ warm water, and in their respective water