A sterilization device for aquaculture and an application thereof in aquaculture in open water. The sterilization device comprises a light source component and at least one group of sterilization components disposed at the periphery of the light source component. By means of the biological phototaxis, microorganisms in the water are attracted by the light source component, and gather into the sterilization component and are exterminated, so as to purify a water body. The sterilization device is applicable to sterilization for aquaculture in open water. By means of the biological phototaxis, germs in the water gather and then, sterilization is performed by using a physical method. The sterilization device is low in the cost, high in the efficiency, and is safe and environmentally friendly, and the microbial biomass in the water can be conveniently and effectively controlled, thereby ensuring a good culture environment for aquatic products.一種水產養殖的殺菌裝置及其應用方法。殺菌裝置包括光源組件和設置在光源組件周邊的至少一組滅菌組件。利用生物的趨光性,使水中的微生物被光源組件吸引,聚集到滅菌組件內被殺滅從而淨化水體。借助生物的趨光性,使水中致病菌集中,再通過物理方法如金屬離子法、紫外線法或高壓電場脈衝法進行殺菌,在保證高效殺菌的同時儘量減小對水產養殖環境的影響。本發明提供的技術方案是一種低成本、高效率、安全和環保的殺菌裝置,特別適合於開闊水域中水產養殖的殺菌,可以方便,有效的控制水域中的微生物量,保證水產品的優質養殖環境。1‧‧‧光源組件2‧‧‧滅菌組件3‧‧‧掛鉤
