caa a22 4500 606229469 CHVBK 20210128101209.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10695-014-0002-0 doi (NATIONALLICENCE)springer-10.1007/s10695-014-0002-0 The effect of temperature on repeat swimming performance in juvenile qingbo ( Spinibarbus sinensis ) [Elektronische Daten] [Xu Pang, Xing-Zhong Yuan, Zhen-Dong Cao, Yao-Guang Zhang, Shi-Jian Fu] To investigate the effect of temperature on the repeat constant acceleration swimming performance and on the metabolic recovery capacity in juvenile qingbo (Spinibarbus sinensis), their constant acceleration test speed (U CAT) and excess post-exercise oxygen consumption (EPOC) recovery process were measured twice with 1-h intervals at different acclimation temperatures (10, 15, 20, 25 and 30°C). Temperature significantly affected U CAT, the pre-exercise metabolic rate (MO2), metabolic peak values (MO2peak), the metabolic scope (MS, MO2peak—pre-exercise MO2) and the magnitude of the EPOC (P<0.05). These parameters significantly increased as the temperature increased from 15 to 25°C and significantly decreased (U CAT and EPOC magnitude) or did not change (MO2peak and MS) when the temperature increased from 25 to 30°C in the first test (P<0.05). The relationships between temperature (T) and these parameters (U CAT, MO2peak, MS and EPOC magnitude) in the first test were as follows: U CAT=62.14/{1+[(T−25.1)/21.1]2} (r=0.847, P<0.001, n=40); MO2peak=1,052.11/{1+[(T−29.2)/18.9]2} (r=0.901, P<0.001, n=39); MS=753.74/{1+[(T−27.1)/18.6]2} (r=0.768, P<0.001, n=39); and EPOC=195.42/{1+[(T−25.6)/8.7]2} (r=0.752, P<0.001, n=39). The optimal temperatures for U CAT, MO2peak, MS and EPOC magnitude in juvenile qingbo were 25.1, 29.2, 27.1 and 28.6°C, respectively. Repeat exercise had different effect on U CAT and EPOC magnitude at different temperature (interaction effect, P<0.05). There was no difference in U CAT and in EPOC magnitude between the first and second tests at low temperatures (10-20°C). However, both U CAT and EPOC magnitude decreased significantly during the second test compared with the first test at high temperatures (25 and 30°C) (P<0.05). The present study showed that the recovery of the constant acceleration swimming performance was poorer at higher temperatures than at low temperatures in juvenile qingbo. These differences may be related to larger anaerobic metabolism, a lower pH value in the blood, larger ionic fluids and/or higher levels of hormones present at high temperatures. Springer Science+Business Media Dordrecht, 2014 Constant acceleration test speed nationallicence Excess post-exercise oxygen consumption nationallicence Repeat swimming nationallicence Spinibarbus sinensis nationallicence Temperature nationallicence Pang Xu Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut Yuan Xing-Zhong College of Resources and Environmental Science, Key Laboratory of Southwest Resource Exploitation and Environmental Disaster Controlling Project of the Education Ministry, Chongqing University, 400030, Chongqing, China aut Cao Zhen-Dong Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut Zhang Yao-Guang Key Laboratory of Freshwater Fish Reproduction and Development, Education of Ministry, Southwest University, 400715, Chongqing, China aut Fu Shi-Jian Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut Fish Physiology and Biochemistry Springer Netherlands 41/1(2015-02-01), 19-29 0920-1742 41:1<19 2015 41 10695 https://doi.org/10.1007/s10695-014-0002-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10695-014-0002-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pang Xu Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut NATIONALLICENCE 700 1- Yuan Xing-Zhong College of Resources and Environmental Science, Key Laboratory of Southwest Resource Exploitation and Environmental Disaster Controlling Project of the Education Ministry, Chongqing University, 400030, Chongqing, China aut NATIONALLICENCE 700 1- Cao Zhen-Dong Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut NATIONALLICENCE 700 1- Zhang Yao-Guang Key Laboratory of Freshwater Fish Reproduction and Development, Education of Ministry, Southwest University, 400715, Chongqing, China aut NATIONALLICENCE 700 1- Fu Shi-Jian Laboratory of Evolutionary Physiology and Behaviour, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Springer Netherlands 41/1(2015-02-01), 19-29 0920-1742 41:1<19 2015 41 10695