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大银鱼具有极高的营养价值和经济价值，而且在水体生态系统能量和物质转化中转化效率高，具有良好的生态和经济效益，从 70年代至今，已在我国的湖库中普遍得到移植，并取得了显著的经济效益和社会效益。但是，在生产实践中许多水库频频出现银鱼产量大起大落的情况，究其原因，
Big silverfish has high nutritional value and economic value, but also has high ecological and economic benefits in conversion of energy and material in water ecosystem. Since the 1970s, it has been widely transplanted in China’s lakes and reservoirs , And achieved significant economic and social benefits. However, many reservoirs frequently appear in the practice of production of silver fish production ups and downs, the reason,