为测定酸性水对池养斑点叉尾(鱼回)产量的影响,美国奥本大学阿拉巴马农业试验站在9个0.04～0.06ha的土塘中进行了试验.养殖水体碱度分别为2.1,5.8,46.2mg/L(CaCO_3),水深0.9～1m.2月份放养平均体重9.1g的鱼种,密度为1万尾/ha,10月底干塘验收.每周投饵5d,日投饵量由鱼体重量的4%降至3%.试验结果表明:总碱度为5.8mg/L的土塘,pH值为6.2,早晨溶 In order to determine the effect of acidic water on the production of channel catfish, the Alabama Agricultural Experiment Station at Auburn University was tested in 9 soil ponds of 0.04-0.06ha, with the alkalinity of 2.1 , 5.8,46.2mg / L (CaCO_3), water depth 0.9 ~ 1m. In February, the fish with average weight of 9.1g had an average density of 10,000 ha / ha and received the dry pond at the end of October. The amount of which was reduced from 4% of the body weight to 3% .The results showed that: the total alkalinity was 5.8mg / L, the pH was 6.2,