鞍带石斑鱼工厂化育苗及研究.doc

...页眉....页脚鞍带石斑鱼工厂化育苗研究?黄宗文** 骆剑林彬郭仁湘杨薇陈国华*** (海南大学海洋学院热带生物资源教育部重点实验室海南海口 570228 ) 摘要: 作者设计了一种新的鞍带石斑鱼工厂化人工育苗方法。测定了鞍带石斑鱼人工育苗过程中水环境因子和育苗水体浮游生物的种类、数量变化。育苗期间水温 2 - ℃;盐度为 27 .0 -32 .0; pH 值为 - ;溶氧量 6mg/L 以上;中午池面平均光照 ;记录了一天的光照、水温、溶解氧和 pH 的变化; 育苗池前 18 天只加水不换水, 氨氮不断上升, 最低值 ,最高值 ,育苗后期采取换水措施,氨氮迅速下降;育苗期间, 水体除正常投喂的轮虫和桡足类外,池中出现浮游植物 12 种、浮游动物 5 种,平均浮游生物生物量 × 10 6个/L。经过 34d 的培养, 得到平均全长 鱼种, 单位水体育苗密度 300 尾/m 3。结果表明,用 EM 菌+ 高级虾片调节水质的模式, 可以保持育苗水质稳定, 成功培育出鞍带石斑鱼幼鱼。关键词: 鞍带石斑鱼,人工育苗,水环境因子中图分类号: S962 文献标识码: A A Study on Industrial Seed Culture of Epinephelus lanceolatus Huang Zongwen Luo Jian Lin Bin Guo Renxiang Yang Wei Chen Guohua ( College of Ocean, Hainan University ; Key Laboratory of Tropic Biological Resources of Ministry of Education , Hainan University ; Hainan Haikou,570228 ) Abstract : This article reported a modified industrial Epinephelus lanceolatus breeding method. The changes of water environment factors, as well as the type and quantity of micro plankton were recorded during the whole artificial breeding process. The fertilized eggs of E. lanceolatus could pletely and develop into normal larval fishes on the following conditions: 28- ℃ temperature, 27-32;salinity, - pH Value, 6 mg/L DO and Lx average illumination intensity. The changes of all above environmental factors during the time span ofa day were also rec