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2000年3～10月,在面积13.33hm~2的荷叶坝进行了湖泊网栏养蟹。共放养规格560只/kg的长江蟹种192.8kg、108,000只,捕获成蟹25,830只、2,893kg,均重112g/只,回捕率23.9％;平均产量14.47kg/667m~2、销售收入868元/667m~2、利润418元/667m~2,投产比1∶1.93;每生产Ⅰkg河蟹的物化成本31.1元,利润28.9元。
From March to October of 2000, a ladle fence was built on the lotus leaf dam with an area of 13.33hm ~ 2. A total of 192.8kg and 108,000 crab species with a size of 560 wk / kg were caged. 25,830 crabs and 2,893kg crabs were caught, each weighing 112g and retaining a catch rate of 23.9%. The average yield was 14.47kg / 667m 2 and the sales revenue was 868 Yuan / 667m ~ 2, profit 418 yuan / 667m ~ 2, put into production ratio of 1: 1.93; Ikg crab production cost 31.1 yuan, profit 28.9 yuan.