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盐碱地渗水盐度与钠钾比对凡纳滨对虾生长的影响

刘存歧;王军霞;张亚娟;刘丽静   

  1. 河北大学生命科学学院, 河北保定 071002
  • 收稿日期:2007-10-12 修回日期:1900-01-01 出版日期:2008-06-20 发布日期:2008-06-20

Effects of salinity and Na+/K+ in percolating water from saline-alkali soil on the growth of Litopenaeus vannamei.

LIU Cun-qi;WANG Jun-xia;ZHANG Ya-juan;LIU Li-jing   

  1. College of Life Science, Hebei University, Baoding 071002, Hebei, China
  • Received:2007-10-12 Revised:1900-01-01 Online:2008-06-20 Published:2008-06-20

摘要: 为广泛利用滨海盐碱地渗水开展对虾养殖,本文研究了盐碱地渗水不同盐度及钠钾比(Na+/ K+)对凡纳滨对虾存活、生长、代谢及体内谷草转氨酶(GOT)、谷丙转氨酶(GPT)和Na+-K+-ATPase等3种酶活性的影响.试验用水盐度分别为5、10和15,各盐度组Na+/K+分别为20、40、50、60、70和90,试验周期为20 d.结果表明,盐度为15的条件下,凡纳滨对虾的存活、生长、代谢及酶活性表现最佳,在此盐度条件下,Na+/K+保持在40和50条件下,凡纳滨对虾存活、生长、代谢及酶活力较高.表明盐碱地渗水经适当调配可用于凡纳滨对虾的养殖.

关键词: 森林恢复方式, 生态系统服务, 土壤质量, 主成分分析, 红壤区

Abstract: In order to develop shrimp farming with the percolating water from coastal saline-alkali soil, the effects of the salinity and Na+/K+ in this percolating water on the survival, growth, metabolism, and glutamic oxaloacetic transaminase (GOT), glutamicpyruvic transaminase (GPT) and Na+-K+-ATPase activities ofLitopenaeus vannameiwere investigated. The shrimps were cultured at the salinity 5, 10 and 15 and at the Na+/K+ ratios of 20, 40, 50, 60, 70 and 90 for 20 days. The results showed that the survival rate, growth rate, and enzyme activities of the shrimps were the highest at salinity 15, and the shrimps had higher survival rate, growth rate, and enzyme activities at the Na+/K+ ratios of 40 and 50, suggesting that after an appropriate preparation, the percolating water from coastal saline-alkali soil was available to culture the shrimps.

Key words: forest restoration approach, ecosystem services, soil quality, principal component analysis, red soil region.