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作者于１９９５年对位于杭州湾北岸海盐县境内的南北湖进行了周年（分四季）浮游生物种群组成调查及生物量季节变化的测定，由此估算出该湖食浮游生物及腐屑的鱼类增产潜力。鉴于南北湖是著名风景湖泊，在渔业利用上不宜采取投饵施肥方式增加鱼虾产量，但针对天然食料资源状况选择适宜品种，有节制地增殖放养某些经济鱼虾，不仅能发挥一定的渔业效益，还能控制水质，防止水体的富营养化
In 1995, the author investigated the population composition of the plankton and the seasonal variation of biomass in the Nanbei Lake located in Haiyan County on the north bank of Hangzhou Bay. Based on this, the authors estimated that the lakes of plankton and decayed fish Yield potential. In view of the fact that Nanbei Lake is a famous scenic lake, it is unfavorable to adopt the mode of feeding and fertilization to increase the production of fish and shrimp in the utilization of fishery. However, selecting suitable varieties for the natural food resources and controlling the proliferation of certain economic fish and shrimp in a controlled manner can not only play certain fishery Benefits, but also control of water quality, to prevent water eutrophication