急性低温胁迫对南方鲇和瓦氏黄颡鱼耗氧率和呼吸频率的影响  

Effect of Acute Low Temperature Stress on Oxygen Consumption Rate and Ventilation Frequency in Silurus meridionalis and Pelteobag vachelli

作　　者：彭姜岚[1] 曹振东[1] 付世建[1] 

机构地区：[1]重庆师范大学生命科学学院进化生理与行为学实验室,重庆400047

出　　处：《安徽农业科学》2007年第25期7846-7848,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(30371121);重庆市自然科学基金;重庆市教委基金

摘　　要：[目的]为了研究急性低温胁迫对南方鲇和瓦氏黄颡鱼耗氧率和呼吸频率的影响。[方法]于24℃条件下测定南方鲇和瓦氏黄颡鱼经过不同温度(24、18、12、6、0℃)10 min低温胁迫后耗氧率(VO2)和呼吸频率(Vf)的恢复过程。[结果]结果表明:南方鲇在6、0℃胁迫后VO2和Vf表现为先下降、后上升然后缓慢回落的过程,其余组表现为先迅速上升然后缓慢回落的过程;瓦氏黄颡鱼只有0℃表现为先下降、后上升然后缓慢回落的过程,其余组表现为先迅速上升然后缓慢回落的过程。[结论]瓦氏黄颡鱼对急性低温胁迫抵抗力更高,但同样的低温胁迫瓦氏黄颡鱼需要消耗更多的能量。该研究为生产实践提供了基础数据。　The objective of the study was to explore the effect of acute low temperature stress on VO2 and Vf of Silurus meridionalis and Pelteobag vachelli after 10 minutes cold water bath with different temperature were investigated at 24 ℃.It was found that the VO2 and Vf of Silurus meridionalis after 6 and 0 ℃ stress showed a decrease-increase-decrease tendency while other groups showed an increased then slowly recovery process.The VO2 and Vf of Pelteobag vachelli after 0 ℃ stress showed a decrease-increase-decrease tendency while other groups showed an increased then slowly recovery process.It suggested Pelteobag vachelli was more adaptive to acute cold stress,but it cost more energy when meeting cold stress compared to Silurus meridionalis.

关 键 词：瓦氏黄颡鱼 南方鲇 耗氧率 呼吸频率 急性低温胁迫 

分 类 号：S965.325[农业科学—水产养殖]