封闭式循环水养殖牙鲆鱼技术初步研究

A preliminary study on culture of false halibut, Paralichthys orivaceus in closed circulating water

将新功能滤料、高效混合净水菌团、水质自动监测及控制 3项关键技术及配套设备用于封闭式循环水养殖牙鲆鱼。结果表明 ,封闭循环组成活率可达到 90 %～ 95 .1% ,平均产量为 32 .2 kg/ m2。较对照组养殖密度增加 75 .6 %～ 10 2 .7% ,成活率提高 14 %～ 17% ,平均产量增加 14 5 %～ 187.5 %。充分利用有限的水体 ,避免海水二次污染 。

Three key technologies of new functional filter material,mixing clean water bacterial ball of high efficiency, automatic monitor, control of water quality and corollary facilities were used for the culture of false haribut, paralichthys orivaceus in closed circulating water. The results showed the survival rate in closed circulating water could reach 90%～95 1%, mean yield was 32 2 kg/m 2, the culture density increased by 75 6%～102 7%, the survival rate increased by 14%～17%, mean yield increased by 145%～187 5% respectively, compared with those in control group. The limited water body is fully used, second pollution is avoided and it is beneficial to the environmental protection.