海蜇养殖成本低，生长快，效益好。以３ ０００ ｍ３水体大棚养殖海蜇为例，投放海蜇苗６ ０００多个，２个月后海蜇出售，可实现销售收入４０多万元。海蜇的生长期为５０多天，５ ｋｇ左右便可上市，每公斤 １１元左右，每立方米水体可放养５只以上，１个养殖大棚 ３ ０００ ? Jellyfish breeding low cost, fast growth, good efficiency. In the case of jellyfish cultured in a water shed of 3,000 m3, for example, more than 6,000 jellyfish jelly plants were put into operation. After 2 months, the jellyfish was sold, which could realize a sales income of more than 400,000 yuan. Jellyfish growing period of more than 50 days, about 5 kg can be listed, about 11 yuan per kilogram, per cubic meter of water can stocking more than 5, a breeding greenhouse 3 000?