罗非鱼 (Tilapia)具有生长快、适应力强、食性广等优点，现已成为世界各地主要的养殖鱼种之一。但罗非鱼成熟早、繁殖周期短，这种过度繁殖则导致了种群密度过大、个体太小而影响了商品鱼的质量及产量。日本矢田水产研究所采用罗非鱼混养的办法来控制过度繁殖量取得了较好的效 Tilapia, which has the advantages of fast growth, strong adaptability and wide feeding, has become one of the major cultured species in the world. However, tilapia mature early, short breeding cycle, this over-breeding led to the population density is too large, the individual is too small and affect the quality and yield of fish products. Japan Yada Aquaculture Institute tilapia polyculture approach to control overproduction has achieved good results