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珠江三角洲(简称三角洲)位于广东省中南部珠江口两侧。由平原区、边缘丘陵区和沿海沿江低洼区三部分组成,是广东省池塘养鱼中心。1988年,三角洲有养鱼池塘1310190亩,总产塘鱼497822吨,占全省鱼塘面积(199.7万亩)的66％,全省池塘养鱼总产量(69.42万吨)的73.4％。该年三角洲地区塘鱼平均亩产380公斤,比全省池塘平均亩产314公斤高21％。虽然近年来三角洲地区池塘养鱼不断发展,但由于许多地区不注意池塘生态环境的保护,致使塘鱼生产条件不断恶化,主要表现在三个方面。
The Pearl River Delta (Delta) is located on both sides of the Pearl River Mouth in south central Guangdong Province. By the plain area, the edge of the hilly and coastal areas along the Yangtze River low-lying three parts, is the Guangdong Provincial Pisciculture Center. In 1988, there were 1,310,190 mu of fish ponds in the delta and 497,822 tons of total pond fish, accounting for 66% of the fishpond area (1.997 million mu) in the province and 73.4% of the total pond fish production (694,200 tons) in the province. The average annual production of 380 kg of pond fish in the delta region was 21% higher than the average production of 314 kg of ponds in the whole province. Although fish culture in the ponds in the delta region has been developing continuously in recent years, the production conditions of the pond fish have been deteriorating due to the lack of attention paid to pond ecosystem protection in many areas, mainly in three aspects.