小体积网箱养鱼技术由于其技术的先进性、适用性,已在生产中得到广泛的应用。但在生产中生产者对遮阳盖的重要性却认识不足,笔者结合多年来的工作实践经验,并通过对比实验认为使用遮阳盖可以提高产量和效益。1 材料与方法1.1 实验条件 实验在平顶山市鲁山县澎河水库进行。水库水质清新无污染,水质良好,交通便利。 试验网箱6个,规格2×2×1.2(米),为全封闭6面体聚乙烯双层网箱,网箱盖为单层,网目2.5厘米。其中,2×2×1(米)沉没于水面之下,网箱顶部露出水面20厘米。3只网箱的顶部加遮光的黑网布(简称遮阳盖,下同),3只没有加遮阳盖。1.2 网箱设置 Due to the advanced technology and applicability of its small size cage fish farming technology, it has been widely used in production. However, in production, the importance of the sun visor is poorly understood by the producer. Based on years of practical experience, the author thinks that the use of the sun visor can improve the yield and efficiency through comparative experiments. 1 Materials and methods 1.1 Experimental conditions Experiments in Pingdingshan Lushan County Penghu reservoir. Fresh water pollution-free reservoirs, water quality is good, convenient transportation. Six test cages, size 2 × 2 × 1.2 (m), are fully enclosed hexahedral polyethylene double cages, cages cover a single layer, mesh 2.5 cm. Among them, 2 × 2 × 1 (m) sunk below the water surface, the top of the cage exposed 20 cm above the water surface. Top of the three cages with blackout black mesh (referred to as the sun cover, the same below), 3 did not add shade cover. 1.2 Cage settings