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水产养殖生产中 ,通常采用拉网起捕或冬季干塘起捕两种方法捕鱼。一些利用低洼地、盐碱地等改造的大水面浅水池塘 (围滩 ) ,有许多单口面积在 6.7～ 1 3.3hm2 (1 0 0～ 2 0 0亩 )之间 ,水深多在 1 .5～ 1 .8m。采取上述两种捕捞方法 ,存在不少弊端 ,养殖过程中要进行轮捕也较困
Aquaculture production, usually using pull-net fishing or winter dry-pond fishing two ways to catch fish. Some large shallow water ponds (enclosures) that utilize low-lying land, saline-alkali land and other alterations have many single-mouth areas of 6.7-1.3hm2 (100-200mu) and water depths of more than 1.5-1. 8m. There are many disadvantages to adopting the above two fishing methods.