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
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Lenguaje:EN
Publicado: Inter-Research 2016
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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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