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开江县养鱼专业户刘晓２００１年在２．３亩（１亩＝１／１５公顷，下同）成鱼塘中尝试套养黄鳝，当年４月投放３０克左右规格本地幼鳝１２００尾，目前已获亩均出鱼４５０公斤、出鳝１１３公斤的好收益，亩均增收１３００多元，实现了鱼鳝双丰收。一、池塘选择池塘以２～５亩?
In 2001, 2.3 million yuan (1 mu = 1/15 hectare) of fish farming in Kaijiang County was put into the trial of raising eels in 2001. In April of this year, about 300 grams of local juvenile eel At present, 450 kilograms of fish have been mu, a good yield of 113 kilograms of eel, and the average increase of more than 1,300 yuan per mu has realized a double harvest of fish eel. A pond to choose 2 to 5 acres of pond?