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在宜鱼稻田建设占面积 10％～ 20％的鱼凼、鱼沟 (鱼凼深 1.5～ 1.8m，鱼沟宽 60～ 80cm，深 40～ 60cm)；在以养虾、蟹为主的稻田，建占面积 20％以上的鱼沟，沟宽 2～ 3m，沟深 1～ 1.5m。这种凼、沟式的稻鱼工程，不仅每亩可以增加蓄水 150～ 300立方米，而且每 m3水体还可年生产 1公斤鱼或 0.5公斤虾、蟹。
In the area of Yichang rice paddy, 10% ~ 20% of the fish in Taipa, Yugou (1.5 ~ 1.8m in width and 60 ~ 80cm in width, 40 ~ 60cm in width) , Account for an area of more than 20% of the fish ditch, groove width 2 ~ 3m, ditch deep 1 ~ 1.5m. This Taipa, ditch rice fish project, not only per acre can increase the storage of 150 to 300 cubic meters, but also per m3 of water can produce 1 kilogram of fish or 0.5 kg shrimp, crab.