【摘要】 本文报道了齐口裂腹鱼幼鱼对水温变化和溶解氧 (DO)变化耐受能力的试验结果。其幼鱼生存的临界水温上限为 33.5℃ ,下限为 0 .8℃ ,适宜生长的温度范围是 5— 2 7℃ ,在此温度范围内水温与其摄食和生长成正相关。幼鱼的窒息点为DO =0 .5 8mg L ,当DO =1.2 8mg L时 ,出现明显的“浮头”现象更多还原

【Abstract】 The result of the test showed that the upper limit of critical water temperature is 33.5 ℃ and the lower limit is 0.8 ℃ for the survival of young Sclizothorax prenanti.The water temperature from 5 to 27 ℃ is suitable for the growth of the young fish and it has positive correlation to feeding and growth. The suffocation point of the young fish is DO=0.58 mg/L. When dissolved oxygen is as low as 1.28 mg/L, the young fish will emerge on water surface.更多还原