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1998年 ,在沅江市白沙乡八形汊渔场的上湖 (16 0hm2 )进行了套养鳜鱼与下湖 (140hm2 )未套养鳜鱼的对比试验。结果 ,上湖平均鲜鱼产量 2 810 6kg/hm2 ,比下湖的 2 915 7kg/hm2 低 10 5 1kg/hm2 ,但上湖的产值、利润、投入产出比分别为 17973 75元 /hm2 、886 3 13元 /hm2 、1∶1 97,依次分别比下湖的 11496 43元 /hm2 、4813 5 7元 /hm2 、1∶1 72高 36 0 %、45 7%、12 7%。
In 1998, a comparative experiment was conducted between Shanghutu (16 0hm2) in Octagascar fishery in Baisha Township, Baisha Township, Yuanjiang City, and the unhurried larvae of Lower Lake (140hm2). As a result, the average fresh fish production in Shanghu was 2 810 6kg / hm2, which was 1051kg / hm2 lower than 2 915 7kg / hm2 in Xiahu Lake, but the output, profit and input-output ratio of Shanghu was 1797375yuan / hm2, 886 3 13 yuan / hm2, 1: 1 97, respectively higher than the lower lake 11496 43 yuan / hm2, 4813 57 yuan / hm2, 1:1 72 high 36 0%, 45 7%, 12 7%.