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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Inter-Research
2016-03-01
|
| Series: | Aquatic Biology |
| Online Access: | https://www.int-res.com/abstracts/ab/v24/n3/p211-217/ |
| _version_ | 1819003920023814144 |
|---|---|
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-20T23:28:39Z |
| format | Article |
| id | doaj.art-e78206a92f1548889d701b52ee762f72 |
| institution | Directory Open Access Journal |
| issn | 1864-7782 1864-7790 |
| language | English |
| last_indexed | 2024-12-20T23:28:39Z |
| publishDate | 2016-03-01 |
| publisher | Inter-Research |
| record_format | Article |
| series | Aquatic Biology |
| spelling | doaj.art-e78206a92f1548889d701b52ee762f722022-12-21T19:23:19ZengInter-ResearchAquatic Biology1864-77821864-77902016-03-0124321121710.3354/ab00649Oxygen consumption and swimming behavior of juvenile Siberian sturgeon Acipenser baerii during stepped velocity testsX Yuan0L Cai1DM Johnson2Z Tu3Y Huang4Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, ChinaEngineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Hubei Yichang 443002, ChinaEngineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Hubei Yichang 443002, ChinaEngineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Hubei Yichang 443002, ChinaEngineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Hubei Yichang 443002, ChinaOxygen 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.https://www.int-res.com/abstracts/ab/v24/n3/p211-217/ |
| spellingShingle | 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 Aquatic Biology |
| title | 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_short | 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 |
| url | https://www.int-res.com/abstracts/ab/v24/n3/p211-217/ |
| work_keys_str_mv | AT xyuan oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT lcai oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT dmjohnson oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT ztu oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests AT yhuang oxygenconsumptionandswimmingbehaviorofjuvenilesiberiansturgeonacipenserbaeriiduringsteppedvelocitytests |