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本文在实验条件下研究了低剂量稻草净对泥鳅捕食、产卵的影响。结果表明：0.20g/L、0.10g/L、0.010g/L稻草净抑制泥鳅的捕食，0.001g/L极低剂量稻草净使泥鳅摄食量减少；泥鳅对经过0.20g/L、0.10g/L、0.010g/L稻草净处理的蚯蚓不感兴趣，对0.001g/L极低浓度处理下的蚯蚓不明显排斥，但泥鳅对该食物的喜好度低于对照组；0.20g/L、0.10g/L、0.010g/L、0.001g/L稻草净影响生活于其内的泥鳅的生殖力，使每雌产卵数减少。“,”This paper studied the ef ect of low-dose herbicide straw kil er on loach’s predation and spawning under experimental conditions. The results showed that:0.20g/L, 0.10g/L, 0.010g/L straw kil er inhibited loach’s predation, 0.001g/L super low-dose straw kil er decreased the food intake of loaches;loaches showed no interest in earthworms treated by 0.20g/L, 0.10g/L, 0.010g/L straw kil er, but they did not repel earthworms processed by 0.001g/L super low-dose straw kil er, al-though they preferred the control group;0.20g/L, 0.10g/L, 0.010g/L, 0.001g/L straw kil er af ected loach’s fertility, reduced the number of eggs each female loach spawned.