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池沼公鱼(Hypomesus olidus)属鲑形目,胡瓜鱼科(Osmeridae),一年生淡水亚冷水性小型经济鱼类。近几年来,北京市密云水库主养鱼类池沼公鱼产量变幅较大,1998年以后产量呈下降趋势。本文研究了影响密云水库池沼公鱼产量变化的主要因素,并提出了提高密云水库池沼公鱼产量的技术措施。 一、池沼公鱼移植、增殖及产量变化情况。
Hypomesus olidus is a salmon-shaped head, the family Osmeridae, and annual freshwater sub-chilled and small-sized economic fish. In recent years, the production of fish in ponds and marshes of main fish in Miyun Reservoir in Beijing fluctuated greatly. After 1998, the yield dropped. In this paper, the main factors that affect the yield of the fish pond in Miyun Reservoir were studied, and the technical measures to improve the yield of the fish pond in Miyun Reservoir were proposed. First, pond marsh male transplant, proliferation and changes in output.