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›› 2017, Vol. 39 ›› Issue (1): 34-39.

• 论文与报告 • 上一篇    下一篇

盐度、密度和底质对双线紫蛤幼贝存活及生长的影响

陈志   

  1. 福建省淡水水产研究所
  • 收稿日期:2016-10-26 修回日期:2016-12-14 出版日期:2017-02-27 发布日期:2017-02-28
  • 通讯作者: 陈志
  • 基金资助:
    福建省海洋高新产业发展专项项目;福建省省属公益类科研院所基本科研专项

Effects of salinity,density and sediment on growth and survival of Sanguinolaria diphos juveniles

  • Received:2016-10-26 Revised:2016-12-14 Online:2017-02-27 Published:2017-02-28

摘要: 采用单因素实验方法进行了双线紫蛤(Sanguinolaria diphos)幼贝的存活与生长进行了研究。实验设置设置了7个盐度梯度(10~40)、5个密度梯度(500~10000 ind/m2)和5种底质类型(全细砂、90%细砂+10%细泥、80%细砂+20%细泥、70%细砂+30%细泥、全粗砂),研究了不同盐度、密度、底质对其存活、生长的影响。结果表明:盐度20、25和30组存活率、生长率差异不显著(P >0.05);不同密度条件下幼贝存活率、生长率差异显著(P <0.05);不同底质类型对幼贝生长影响差异明显。双线紫蛤幼贝最适生长盐度范围为20~25;最适养殖密度范围为500~1000 ind/m2,最佳养殖底质为细砂底质。研究结果为双线紫蛤池塘人工增养殖提供参考。

关键词: 双线紫蛤幼贝, 生长率, 盐度, 密度, 底质, Sanguinolaria diphos juveniles, growth rate, salinity, density, sediment

Abstract: The monofactorial experiment was conducted to investigate the effects of salinity, density and sediment on the survival and growth of Sanguinolaria diphos juveniles. 7 salinity gradient (10-40%), 5 density gradient (500-10000 ind/m2) and 5 sediment types (fine sand、fine sand+10% mud、80% fine sand+20% mud、70% fine sand+30% mud、coarse sand) were set up; The results indicated that the growth and survival rate of salinity experimental group(20‰、25‰ and 30‰) were not significant difference; The growth and survival rate of Sanguinolaria diphos juveniles were significant difference under different density conditions. The effect of different type of sediment on the growth was obvious. The appropriate growth salinity ranged from 20~25‰; the appropriate breeding density was found from 500 to1000 ind/m2; the most appropriate sediment was fine sand .The research result provided a theoretical reference for Sanguinolaria diphos artificial aquaculture in the pond.

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