| 摘要: |
| 总结了2009～2010 年关于大泷六线鱼(Hexagrammos otakii)人工繁殖及育苗技术的研究结果,论述了大泷六线鱼苗种繁育的关键技术。通过对亲鱼强化培育和促熟, 创新发明人工平面授精技术和网箱吊式孵化技术, 加强饵料的合理搭配与投喂、水质调控技术等措施, 突破了大泷六线鱼人工繁殖的技术难点, 明显提高了受精率、孵化率和苗种成活率, 解决了人工繁殖大泷六线鱼苗种生产问题。在水温16～17℃, 盐度31, 光照500～1000 lx 的培育条件下, 大泷六线鱼鱼苗经过90～100 d 的培育,全长生长至5～6 cm。2009 和2010 年分别培育出全长5 cm 以上大泷六线鱼鱼苗4.1 万尾、11.4 万尾, 苗种成活率分别达到41.7%、43.2%, 在国内首次实现了大泷六线鱼人工规模化繁育。 |
| 关键词: 大泷六线鱼(Hexagrammos otakii) 人工繁殖 苗种培育 |
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| 基金项目:山东省渔业资源修复行动计划项目和山东省科技发展计划共同资助项目(2011GHY11502) |
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| Study of artificial breeding and seedling culture technique for greenling Hexagrammos otakii |
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| Abstract: |
| This paper presents the results of large-scale seedling production of greenling Hexagrammos otakii from 2009 to 2010 together with those key technologies like broodstock culture, egg incubation and larval culture. These technologies were proved to be operative. Juvenile grew to 50～60 mm after nursed at 16～17℃, salinity 31, illumination 500～1000 lx for, 90～100 d. In 2009 and 2010, we obtained 41 and 114 thousands juvenile (total length 50～60 mm), and the survival rates reached 41.7% and 43.2%, respectively. This is the first record in China on large-scale (magnitude up to hundred thousand of leve1) breeding of H. otakii． |
| Key words: Hexagrammos otakii artificial breeding seedling culture |
