首页 >  大连海洋大学学报 >  盐度对中国对虾“黄海2号”幼虾生长与存活的影响

2013, 28(4): 347-349.

盐度对中国对虾“黄海2号”幼虾生长与存活的影响

1. 大连海洋大学 水产与生命学院, 辽宁 大连 116023;

2. 中国水产科学研究院 黄海水产研究所, 山东 青岛 266071

通讯作者: 孔杰, kongjie@sina.com

收稿日期:2012-12-13

基金项目:   国家农业科技成果转化资金资助项目(2011GB2A210003)  国家自然科学基金资助项目(31072206,31172402)  国家"863"计划项目(2012AA10A404)  农业部"948"项目(2011-G12)  青岛市关键技术攻关类项目(11-1-1-11-hy) 

关键词: 中国对虾 , 盐度 , 生长 , 存活率

Effects of salinity on growth and survival in strain “Huanghai No.2” juveniles of Chinese shrimp Fenneropenaeus chinensis

1. College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China;

2. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China

Corresponding author: KONG Jie, kongjie@sina.com

Received Date:2012-12-13

Keywords: Fenneropenaeus chinensis , salinity , growth , survival rate

对中国对虾Fenneropenaeus chinensis"黄海2号"幼虾(平均体质量为2.54 g)的适宜养殖盐度进行了探讨。试验设置5个盐度梯度(0、8、15、23、30),对不同盐度下幼虾的存活率及生长速度进行了比较分析。结果表明:盐度对中国对虾"黄海2号"的存活与生长影响显著,0盐度组中国对虾5 d内全部死亡,其他盐度组对虾的存活率有一定差异,其中30盐度组对虾成活率最高(95%),8盐度组对虾成活率最低(81%);盐度对生长速度也有显著影响,23盐度组对虾生长最快,日增重达0.202 g,其次是15、30盐度组,日增重分别为0.175、0.172 g,而8盐度组对虾的生长速度最慢,日增重仅为0.152 g。研究表明,中国对虾"黄海2号"不适合淡水养殖,但8以上的低盐条件下可以养殖,最佳养殖盐度为23左右。

A 40 day feeding trial was conducted to determine effects of different salinities(0, 8, 15, 23, and 30) on growth and survival of Chinese shrimp Fenneropenaeus chinensis strain "Huanghai No.2" juveniles with body weight of 2.54 g. The results showed that the salinity had significant effects on the survival and growth in the shrimp. The shrimp was found to be survival for only 5 days when it was exposed to the water with a salinity of 0. There was different survival in the shrimp exposed to various salinities, the maximal rate of 95% at a salinity of 30, and the minimum of 81% under a salinity of 8. The best growth (daily weight gain of 0.202 g) was observed in the shrimp exposed to a salinity of 23, followed by at a salinity of 15(daily weight gain of 0.175 g), and 30 (daily weight gain of 0.172 g), and the poorest growth (daily weight gain of 0.152 g) at a salinity of 8, indicating that "Huanghai No.2" is not suitable for being cultured in freshwater. The findings approve that "Huanghai No.2" juveniles can be cultured at a salinity of over 8, the optimal of about 23.

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盐度对中国对虾“黄海2号”幼虾生长与存活的影响