AB 26:125-135 (2017)  -  DOI: https://doi.org/10.3354/ab00681

Effects of prolonged exercise training and exhaustive chasing training on the swimming performance of an endangered bream Megalobrama pellegrini

Xiu-Ming Li1,2, Xu Pang1, Hua Zheng2, Xiao-Jin Li2, Shi-Jian Fu2, Yao-Guang Zhang1,*

1Key Laboratory of Freshwater Fish Reproduction and Development (Education Ministry), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, PR China
2Laboratory of Evolutionary Physiology and Behavior, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing 401331, PR China
*Corresponding author:

ABSTRACT: Swimming performance of fish is often improved following periods of moderate exercise training. To examine the effects of training regimes on swimming performance of juvenile bream Megalobrama pellegrini (5.10 ± 0.08 g), fish were held in slow-flowing water (control), or subjected to exercise training at 1 body length (BL) s-1, 2 BL s-1 or 4 BL s-1, or were given exhaustive chasing training daily for 5 wk at 25°C. Aerobic swimming performance was assessed by measuring critical swimming speed (Ucrit). Maximum metabolic rate (MMR), metabolic scope (MS), cost of transport (COT) and net cost of transport (COTnet) were assessed by measurement of oxygen consumption rates (ṀO2). Ucrit was significantly higher in the 4 BL s-1 training group than in the controls. The value of Ucrit was 5% greater for the exhaustive training group compared with the control group, although exhaustive chasing training did not have a significant effect on Ucrit. MMR and MS were not significantly different across treatments.ṀO2 and COT of fish in the 4 BL s-1 and exhaustive training groups were significantly lower than in the control group in the swimming speed range of approximately 36-60 cm s-1. This suggests that high-intensity prolonged exercise training and exhaustive chasing training have a positive influence on the swimming performance of juvenile M. pellegrini, which may be related to elevated anaerobic metabolism and improved swimming efficiency.


KEY WORDS: Aerobic exercise training · Anaerobic exercise training · Critical swimming speed · Megalobrama pellegrini


Full text in pdf format  
Cite this article as: Li XM, Pang X, Zheng H, Li XJ, Fu SJ, Zhang YG (2017) Effects of prolonged exercise training and exhaustive chasing training on the swimming performance of an endangered bream Megalobrama pellegrini. Aquat Biol 26:125-135. https://doi.org/10.3354/ab00681

Export citation
Mail this link - Contents Mailing Lists - RSS
- -