摘要
设计制作了养殖槽底部流水并带有净化装置的循环水海参（Apostichopus japonicus）养殖系统,饲养规格为（0.39±0.03）g的幼参,通过测定氨氮、亚硝酸盐、硝酸盐、COD等指标,以及海参的生长情况,研究该系统水质变化规律及养殖效果。结果表明,水质稳定后开启循环水养殖幼参,密度为0.47 kg/m^3,干净化槽中加入硝化细菌后,7-12 d换水时,氨氮和亚硝酸盐的最大值分别为0.190 mg/L和0.077 mg/L。试验期间没有使用任何药物,海参的成活率为95%。
A self-cleaning aquaculture system with filtering equipment and ＂water-fllowing bottom＂ culture tank was designed and used to culture juvenile sea cucumber（0.39±0.07g/ind）.Ammonium-,nitrite-,nitrate-nitrogen and COD,as well as survival rate were measured to evaluate the changes of water quality and feasibility of this system.for culturing sea cucumber.The results showed that after adding nitrifying bacteria into the filtering tank,the maximum value of ammonium-and nitrite-nitrogen were 0.190 mg/L and 0.077 mg/L,respectively,when the sea cucumbers were cultured at a density of 0.47kg/m^3 with water change at an interval of 7-12 days.A survival rate of the sea cucumber kept at 95% without any drugs input throughout the experiment.
出处
《渔业现代化》
北大核心
2010年第4期27-30,共4页
Fishery Modernization
基金
大连市青年科技人才基金项目(2007J23JH023)
国家海洋局海洋公益项目(200805032)
关键词
海参
循环水养殖
自净化
sea cucumber
water recirculating aquaculture
self-cleaning system
