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

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(英文)

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：《Agricultural Science & Technology》2007年第3期73-78,共6页农业科学与技术（英文版）

基　　金：Supported by the National Natural Science Foundation of China(30371121);the Natural Science Foundation of Chongqing ;the Educa-tion Committee Foundation of Chongqing~~

摘　　要：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.The investigation was operated under the temperature of 24 ℃.It was found that the VO2 and Vf of Silurus meridionalis after 6 and 0 ℃ stress showed a decrease-increase-decrease trend while other groups showed a rapid increase then slowly recovery trend.The VO2 and Vf of Pelteobag vachelli after 0 ℃stress showed a decrease-increase-decrease trend while other groups showed an increase then slowly recovery process.It was suggested that Pelteobag vachelli was more adaptive to acute cold stress,but it cost more energy adapting to cold stress compared to Silurus meridionalis.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. The investigation was operated under the temperature of 24℃. It was found that the VO2 and Vf of Silurus meridionalis after 6 and 0 ℃ stress showed a decrease-increase-decrease trend while other groups showed a rapid increase then slowly recovery trend. The VO2 and Vf of Pelteobag vachelli after 0 ℃ stress showed a decrease-increase-decrease trend while other groups showed an increase then slowly recovery process. It was suggested that Pelteobag vachelli was more adaptive to acute cold stress, but it cost more energy adapting to cold stress compared to Silurus meridionalis.

关 键 词：Pelteobag vachelli Richardson Silurus meridionalis Chen Oxygen consumption （ VO2 ） Ventilation frequency （Vf） Acute low temperature stress 

分 类 号：S917.4[农业科学—水产科学]