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水库养鱼是大水面养鱼的重要组成部分,我省水库养鱼面积约占全省养鱼总面积的51%。从营养类型划分,大部属富营养型或一般营养型,贫营养型甚少,以中小型水库居多,其水面宽阔、水质清新,溶氧丰富以及变化不大的水温,给各种鱼类的繁殖、生长、栖息提供了良好的环境。榆林县中营、城固县南沙河、南郑县白兔岭及宝鸡市冯家山等水库,在各自同类型水库中,曾分别获得了亩产49.5、40.2、97及7公斤的最高水平。但由于水库溢洪、放水、蓄水量、水交换量等的变化,以及某些水库水温偏低、天然饵料的歉缺等原因,又给渔业生产带来影响,所以水库鱼产量极不稳定,单产普遍偏
Aquarium fish is an important part of large-scale fish farming, fish farming area of our province accounts for about 51% of the total area of the province’s fish. From the type of nutrition, the majority of eutrophic or general nutrition, poor nutrition type is very small, mostly small and medium reservoirs, its wide water surface, fresh water, rich dissolved oxygen and little change in water temperature, to a variety of fish Breeding, growth, habitat provides a good environment. Zhongling in Yulin County, Nansha River in Chenggu County, White Rabbit Ridge in Nanzheng County and Fengjiashan Reservoir in Baoji City have obtained the highest levels of 49.5, 40.2, 97 and 7 kg per mu, respectively. However, the production of reservoir fish is extremely unstable due to the changes of reservoir spill, water discharge, water storage and water exchange, as well as the low water temperature in some reservoirs and the lack of natural food, which in turn has an impact on fishery production , Yield generally partial