Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests

Oxygen consumption rate (MO2) and critical swimming speed (Ucrit) of juvenile Siberian sturgeon Acipenser baerii were measured at 24°C using a step-wise velocity test in a flume-type respirometer. Swimming behavior was video-recorded before and after the swimming experiment in a respirometer and an...

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Autores principales:	X Yuan, L Cai, DM Johnson, Z Tu, Y Huang
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2016
Materias:	Biology (General) QH301-705.5 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/e78206a92f1548889d701b52ee762f72
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spelling	oai:doaj.org-article:e78206a92f1548889d701b52ee762f722021-11-18T09:19:24ZOxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests1864-77821864-779010.3354/ab00649https://doaj.org/article/e78206a92f1548889d701b52ee762f722016-03-01T00:00:00Zhttps://www.int-res.com/abstracts/ab/v24/n3/p211-217/https://doaj.org/toc/1864-7782https://doaj.org/toc/1864-7790Oxygen consumption rate (MO2) and critical swimming speed (Ucrit) of juvenile Siberian sturgeon Acipenser baerii were measured at 24°C using a step-wise velocity test in a flume-type respirometer. Swimming behavior was video-recorded before and after the swimming experiment in a respirometer and an open tank. The relationship between MO2 and swimming speed (U) can be accurately described by a power function. The Ucrit of A. baerii was found to be 2.28 ± 0.09 body lengths (BL) s-1 or 0.51 ± 0.05 m s-1. The standard metabolic rate was calculated to be 149.24 mg O2 kg-1 h-1, and measured maximum metabolic rate (MMR) was 385.04 mg O2 kg-1 h-1. This is a relatively low MMR, resulting in a low metabolic scope, and is consistent with the low Ucrit of juvenile sturgeon. Excess post-exercise oxygen consumption, measured over a 60 min recovery period, was 65.20 mg O2 kg-1. Therefore, A. baerii possess high fatigue recovery capability. Tail beat frequencies increased significantly with U, but there was very little change in tail beat amplitude, and results differed between respirometer and open tank observations. Our results provide data on the physiology and behavior of A. baerii and will help to support conservation of this important species.X YuanL CaiDM JohnsonZ TuY HuangInter-ResearcharticleBiology (General)QH301-705.5MicrobiologyQR1-502ENAquatic Biology, Vol 24, Iss 3, Pp 211-217 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5 Microbiology QR1-502
spellingShingle	Biology (General) QH301-705.5 Microbiology QR1-502 X Yuan L Cai DM Johnson Z Tu Y Huang Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
description	Oxygen consumption rate (MO2) and critical swimming speed (Ucrit) of juvenile Siberian sturgeon Acipenser baerii were measured at 24°C using a step-wise velocity test in a flume-type respirometer. Swimming behavior was video-recorded before and after the swimming experiment in a respirometer and an open tank. The relationship between MO2 and swimming speed (U) can be accurately described by a power function. The Ucrit of A. baerii was found to be 2.28 ± 0.09 body lengths (BL) s-1 or 0.51 ± 0.05 m s-1. The standard metabolic rate was calculated to be 149.24 mg O2 kg-1 h-1, and measured maximum metabolic rate (MMR) was 385.04 mg O2 kg-1 h-1. This is a relatively low MMR, resulting in a low metabolic scope, and is consistent with the low Ucrit of juvenile sturgeon. Excess post-exercise oxygen consumption, measured over a 60 min recovery period, was 65.20 mg O2 kg-1. Therefore, A. baerii possess high fatigue recovery capability. Tail beat frequencies increased significantly with U, but there was very little change in tail beat amplitude, and results differed between respirometer and open tank observations. Our results provide data on the physiology and behavior of A. baerii and will help to support conservation of this important species.
format	article
author	X Yuan L Cai DM Johnson Z Tu Y Huang
author_facet	X Yuan L Cai DM Johnson Z Tu Y Huang
author_sort	X Yuan
title	Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
title_short	Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
title_full	Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
title_fullStr	Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
title_full_unstemmed	Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests
title_sort	oxygen consumption and swimming behavior of juvenile siberian sturgeon acipenser baerii during stepped velocity tests
publisher	Inter-Research
publishDate	2016
url	https://doaj.org/article/e78206a92f1548889d701b52ee762f72
work_keys_str_mv	AT xyuan oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT lcai oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT dmjohnson oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT ztu oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT yhuang oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests
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Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity tests

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