氨态氮和pH对脊尾白虾氮磷代谢的影响  

Effect of Ammonia-N and pH on the Ammonia and Phosphate Excretion of Exopalaemon carinicauda

作　　者：赖晓芳[1] 沈善瑞[1] 吕海波[1] 

机构地区：[1]淮海工学院海洋学院,江苏连云港222005

出　　处：《安徽农业科学》2013年第13期5745-5746,共2页Journal of Anhui Agricultural Sciences

基　　金：淮海工学院自然科学基金(KX11111);江苏省海洋生物技术重点建设实验室开放基金(2012HS002);淮海工学院博士启动基金(KQ11010)

摘　　要：[目的]分析氨态氮和pH对脊尾白虾氮磷代谢的影响,以期为脊尾白虾对环境的适应情况及抗逆机制的研究提供资料。[方法]采用人工改变自然海水氨态氮浓度和pH,研究水族箱中氨氮和磷酸盐浓度在密闭2 h前后的差异。[结果]氨态氮处理组,随着NH4Cl浓度的增加,脊尾白虾的氮磷代谢均呈现下降的趋势,急变组的幅度大于缓变组;pH处理组,当pH>8.4时或pH<7.8,脊尾白虾的氮磷代谢均随着pH的上升或下降呈现下降趋势,急变组的幅度大于缓变组。[结论]氨态氮和pH均降低了脊尾白虾的代谢水平,急变比缓变显著。[ Objective ] The study aimed to analyze the effect of ammonia-N and pH on the ammonia and phosphate excretion of Exopalaemon carinicauda, so as to provide the material for understanding the stress mechanism of E. carinicauda. [ Method] The concentration of ammonia- N and pH were changed gradient, and the difference of ammonia and phosphate excretion of every tested experiment between just before and after 2 h sealed. [ Result] The ammonia and phosphate excretion were down regulated according to the up regulated concentration of NH4C1 or according to the pH out of 7.8 - 8.7 in all experimental groups, and especially in the rapid group. [ Conclusion] Both ammonia-N and pH can decrease the standard metabolic rate of E. carinicauda, and it was more noticeably in rapid groups than gradual groups.

关 键 词：脊尾白虾 氨态氮 PH 氮磷代谢 

分 类 号：S945.49[农业科学—水产养殖]