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塘沽区濒临渤海,为盐碱地区,历史上渔业生产以海洋捕捞为主。淡水渔业起步虽晚,但发展较快,尤其1985年以后,养鱼面积、产量逐年增加,直至1989年池塘养鱼面积达8024亩,平均亩产242.8kg,可是由于饲料涨价,成本上升,市场疲软,鱼价下跌等原因,全区平均亩效益降至212.57元,投入产出比降为1:1.2368,出现了高投入低效益现象。针对上述问题,1990、1991两年,我们以增收节支,提高经济效益为中心,依靠规模经营的
Tanggu District is on the verge of the Bohai Sea. It is a saline-alkali region. Historically, fishery production has mainly focused on marine fishing. Although the freshwater fishery started late, it developed rapidly. Especially after 1985, the area and output of fish farming increased year by year. Until 1989, the area of pond fish farming reached 8024 mu with an average yield of 242.8 kg per mu. However, due to the rise in feed prices and the rising costs, Market weakness, fish prices and other reasons, the average yield per mu fell to 212.57 yuan, input-output ratio dropped to 1: 1.2368, there has been a high investment low-efficiency phenomenon. In response to the above issues, 1990, 1991, two years, we increase revenue and reduce costs and improve economic efficiency as the center, relying on the scale