The effects of feeding on the swimming performance and metabolic response of juvenile southern catfish, Silurus meridionalis, acclimated at different temperatures

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
Xu PangShi-Jian Fu

Abstract

To test whether the effects of feeding on swimming performance vary with acclimation temperature in juvenile southern catfish (Silurus meridionalis), we investigated the specific dynamic action (SDA) and swimming performance of fasting and feeding fish at acclimation temperatures of 15, 21, 27, and 33 degrees C. Feeding had no effect on the critical swimming speeding (U(crit)) of fish acclimated at 15 degrees C (p=0.66), whereas it elicited a 12.04, 18.70, and 20.98% decrease in U(crit) for fish acclimated at 21, 27 and 33 degrees C, respectively (p<0.05). Both the maximal postprandial oxygen consumption rate (VO2peak) and the active metabolic rate (VO2active, maximal aerobic sustainable metabolic rate of fasting fish) increased significantly with temperature (p<0.05). The postprandial maximum oxygen consumption rates during swimming (VO2max) were higher than the VO2active of fasting fish at all temperature groups (p<0.05). The VO2max increased with increasing temperature, but the relative residual metabolic scope (VO2max-VO2peak) during swimming decreased with increasing in temperature. The present study showed that the impairment of postprandial swimming performance increased with increasing temperature due to the unparallele...Continue Reading

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Citations

Jan 12, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Wei ZhangShi-Jian Fu
Aug 21, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Xu PangShi-Jian Fu
Feb 21, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Hon Jung LiewGudrun De Boeck
Jan 18, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Xiu-Ming LiYao-Guang Zhang
Jan 23, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Dane H KlingerBarbara A Block
Oct 28, 2011·Physiological and Biochemical Zoology : PBZ·C J BraunerS-J Fu
Jul 6, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Wei ZhangShi-Jian Fu
Feb 9, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Xiu-Ming LiShi-Jian Fu
Jun 22, 2010·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Xiu-Ming LiShi-Jian Fu
May 24, 2014·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Wei HeShi-Jian Fu
Mar 12, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Han YangShi-Jian Fu
Aug 8, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Hon Jung LiewGudrun De Boeck
Aug 14, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Hon Jung LiewGudrun De Boeck
Jul 11, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Wei HeShi-Jian Fu
Dec 21, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Shi-Jian FuGuanjie Yan
Oct 19, 2014·Fish Physiology and Biochemistry·Xu PangShi-Jian Fu
Jun 18, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Xu PangYao-Guang Zhang
Sep 19, 2019·The Journal of Experimental Biology·S Clay SteellErika J Eliason

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