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急性盐度胁迫对文蛤和青蛤滤水率的影响

魏伟1,2,唐保军1**   

  1. 1中国水产科学研究院东海水产研究所, 上海 200090; 2上海海洋大学水产与生命学院, 上海 201306)
  • 出版日期:2015-09-10 发布日期:2015-09-10

Effects of acute salinity stress on clearance rates of Meretrix meretrix and Cyclina sinensis.

WEI Wei1,2, TANG Bao-jun1**   

  1. (1East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; 2 College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China)
  • Online:2015-09-10 Published:2015-09-10

摘要:

以扁藻(Platymonas subcordiformis)为指示饵料,设定4个盐度梯度21、15、10、5,采用静水法测定了急性盐度胁迫条件下文蛤(Meretrix meretrix)成贝、文蛤稚贝和青蛤(Cyclina sinensis)滤水率的变化。结果表明:盐度胁迫对文蛤和青蛤滤水率有显著影响(P<0.05);随着时间的增加,不同规格文蛤和青蛤逐渐适应盐度变化,但适应不同盐度需要的时间长短不同;文蛤成贝较文蛤稚贝对盐度的适应性更强。
 

关键词: 耐盐特性, 根系形态, 棉花, 盐分胁迫

Abstract: The clearance rates of adult and juvenile Meretrix meretrix and Cyclina sinensis under acute salinity stress were investigated using static test method. Four salinity levels (21, 15, 10, 5) were set and the algae Platymonas subcordiformis was employed as the indicator diet for the measurement. The results showed that salinity stress had significant effects on the clearance rates of M. meretrix and C. sinensis (P<0.05). Both M. meretrix and C. sinensis could gradually adapt to the changes of salinity, but the duration for adaptation varied. The adult M. meretrix could adapt the salinity change more rapidly than the juvenile.

Key words: salt tolerance, cotton, root morphology, salt stress