【摘要】 南漪湖具有银鱼生长繁衍的良好生态条件，１９８１～１９８７年总产银鱼１１５０ｔ。１９８８年后由于过度捕捞，经济鱼类种类组成改变；加上多年旱灾低水位的影响，造成资源严重衰退。通过分析认为：合理调整经济鱼类种类组成，开展放流移植增殖，加强资源保护管理等将使银鱼年产量达到历史最高水平的２．６９倍。更多还原

【Abstract】 Nanyi Lake has the excellent ecological conditions suitable for icefish growth and reproduction.The total output of icefish from 1981￣1987 was 1 150 tons.Since 1988,over harvest,the alteration of the composition of economic fish species,drought and low level of water in long term had resulted in a heavy collapse of the icefish resource.Based on our analysis,we suggested that the composition of economic fish species be adjusted;the method of stocking and transplanting fries for increment be used the management of fish resource conservation be strengthened so that the annual yield may be increased to 2 69 time of the highest one in the record.更多还原