温度、种内标准代谢差异与鲫幼鱼力竭运动后过量耗氧的关系  

Relationships between water temperature and intraspecies standard metabolic rate differ- ence and juvenile Crucian caratus excess oxygen consumption after exhaustive exercise.

作　　者：唐国伟[1] 曹振东[1] 付世建[1] 

机构地区：[1]重庆师范大学进化生理与行为学实验室,重庆市动物生物学重点实验室,重庆401331

出　　处：《生态学杂志》2013年第12期3255-3260,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(31172096);重庆科技创新能力建设项目(CSTC2010CA1010)资助

摘　　要：为了探讨温度和种内标准代谢差异对鲫(Carassius auratus)幼鱼运动后过量耗氧特征的影响,分别在15和25℃下测定实验鱼的标准代谢率(SMR)和力竭运动后耗氧率(MO2),并计算力竭运动后过量耗氧总量(EPOC)、力竭恢复过程中的最大代谢率(MMR)、代谢范围和恢复时间。结果表明:与15℃相比,25℃下SMR、MMR、代谢范围和EPOC均显著升高,而恢复时间无显著差异;2个温度下,实验鱼种内个体SMR与MMR呈正相关,与EPOC呈负相关,实验温度对上述相关关系均无显著影响。由此可见,除恢复时间外,温度对鲫幼鱼力竭运动后的其他过量耗氧参数均有显著影响,但并不影响SMR与MMR和EPOC的相关性。To study the effects of water temperature and intraspecies standard metabolic rate （SMR） difference on the excess oxygen consumption （EPOC） of juvenile Carassius auratus after its exhaustive exercise, this paper measured the SMR and oxygen consumption （MO2） of juvenile C. auratus during the recovery process after exhaustive exercise at 15 and 25 ℃, and calculated the total amount of EPOC after exhaustive exercise and the maximal metabolic rate （MMR） , met- abolic scope, and recovery duration. The values of SMR, MMR, metabolic scope, and EPOC were significantly higher at 25 ℃ than at 15 ℃ （P〈0.01）, whereas the recovery duration at 15 ℃ and 25 ℃ showed no significant difference. At the two temperatures, the individuals SMR was positively correlated with MMR but negatively correlated with EPOC, and the variation of temper- ature had no significant effects on these relationships. The results indicated that water tempera- ture had significant effects on the excessive oxygen consumption parameters except recovery dura- tion after exhaustive exercise, but no significant effects on the relationships between SMR and MMR or EPOC.

关 键 词：鲫 温度 标准代谢率 运动后过量耗氧 

分 类 号：S917.4[农业科学—水产科学]