北方地区的海水网箱养鱼自20世纪90年代有了长足的发展,但由于受水温制约,海水网箱养鱼品种仅有鲈鱼、鯛、河豚、美国红鱼、牙鲆、六线鱼等,比较单一。而开放性海域网箱养鱼,受风浪、养鱼品种等制约,进展尤其缓慢。大连碧龙海珍品有限公司1999年选用单体柔性网箱、单体浮式网箱、单体沉性网箱、单体沉浮式网箱,及鲈鱼、真鯛、河 Sea cage aquaculture in the northern part of the country has made considerable strides since the 1990s, but due to temperature constraints, there are only seabass, seabream, puffer fish, American redfish, flounder, six-lane fish, etc. , More single. The open sea cages fish, by the storm, fish species constraints, the progress is particularly slow. Dalian Bilonghai Treasures Co., Ltd. in 1999 selected single flexible cages, single floating cage, single submerged cage, single sinking cage, and bass, red sea bream, river