对南美白对虾淡化养殖暴发性虾病发生前后的水质及生物性指标进行测定, 指出南美白对虾病害发生与藻相不稳定引起的水环境变化有关, 初步提出南美白对虾病害发生的预警机制。 The water quality and biological indexes before and after the occurrence of outbreak of shrimp disease caused by desalination culture of P. vannamei were determined. It was pointed out that the occurrence of P. vannamei was related to the changes of water environment caused by the instability of algae phase, and the preliminary warning mechanism of the occurrence of P. vannamei was proposed.