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海水养殖生产中的“混养”、“套养”已成为目前渔业生产增加产量、提高经济效益的有效途径.如海带与贻贝套养、对虾与罗非鱼混养均已取得成功.1988年,大连市甘井子区营城子镇西小磨对虾养殖场,在饵料涨价、成本提高、对虾经济效益有所下降的情况下,为做好超前生产准备,进行对虾、罗非鱼混养试验性生产,在试养的40.8亩养虾池中放养鱼虾,经过120天养殖,平均每亩收获对虾258公斤,比当地对虾平均亩产增产47%,创全区对虾亩产历史上最高水平;罗非鱼平均
The “polyculture” and “nurturing” in marine aquaculture production have become an effective way to increase the output and increase the economic benefits of fishery production, for example, kelp and mussel nesting, and the prawn and tilapia polyculture have all been successful. Year, the West Xiaogu mill prawn farms in Yingchengzi Town, Ganjingzi District, Dalian City, in order to make advanced production preparations under the circumstances of the increase of food price and cost and the decrease of the economic benefits of shrimp, shrimp and tilapia polyculture Experimental production, stocking in 40.8 acres of shrimp ponds try to stock fish and shrimp, after 120 days of breeding, the average harvest of shrimp per acre 258 kg, an increase of more than the average yield of shrimp 47%, creating a region of shrimp mu yield history Highest level; tilapia average