在夏季,蓝绿藻是淡水养殖池塘的主要浮游植物,常因繁殖过盛形成“水华”,大量消耗池水中的溶解氧、使氮循环失调而产生毒性氨和降低水中的光照度等,造成鱼类死亡,给养殖生产带来经济损失。本文详细探讨了蓝绿藻的毒力、饵料价值、影响蓝绿藻丰度的因子、蓝绿藻对池塘环境的影响以及控制蓝绿藻的方法与技术。 In summer, blue-green algae are the main phytoplankton of freshwater aquaculture ponds, often resulting in “blooming” due to over-breeding, massive consumption of dissolved oxygen in the pond water, imbalance of nitrogen production, toxic ammonia and lowering of light intensity in the water, etc. The death of fish brings economic losses to aquaculture production. This article discusses in detail the toxicity of cyanobacteria, the value of bait, the factors affecting the abundance of blue-green algae, the influence of blue-green algae on the pond environment and the methods and techniques for controlling blue-green algae.