title: Effects of feeding, digestion and fasting on the respiration and swimming capability of juvenile sterlet sturgeon (Acipenser ruthenus, Linnaeus 1758).
abstract: The objective of this study is to provide information on changes in swimming capability and respiration of the sterlet sturgeon (Acipenser ruthenus, Linnaeus 1758) caused by different levels of fasting. Before testing, the four groups of sturgeon (body length: 12.1-15.4 cm, body mass: 10.0-20.2 g) fasted for 6 h, 2 days, 1 and 2 weeks, respectively. Swimming tests were then performed to measure critical swimming speed and oxygen consumption at 20 ± 0.5 °C. Results show: (1) Fasting times shorter than 2 days has little effect on swimming capability, but it decreases significantly when the fasting time is longer than a week. (2) After 2 weeks of fasting, swimming efficiency is significantly reduced. (3) Anaerobic capacity increases when digestion nears completion.
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.|Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Cai
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.|Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.
authors.forename: David
authors.initials: D
authors.lastname: Johnson
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.|Yellow River Liaocheng Bureau, Liaocheng, 252000, China.
authors.forename: Min
authors.initials: M
authors.lastname: Fang
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.
authors.forename: Prashant
authors.initials: P
authors.lastname: Mandal
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.
authors.forename: Zhiying
authors.initials: Z
authors.lastname: Tu
authors.affiliation: Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China. yingpinghuang@126.com.
authors.forename: Yingping
authors.initials: Y
authors.lastname: Huang
mesh_terms: D000818:Animals; D004063:Digestion / Q000502:physiology*; D004435:Eating / Q000502:physiology; D005215:Fasting / Q000502:physiology*; D005399:Fishes / Q000502:physiology*; D010101:Oxygen Consumption; D013550:Swimming / Q000502:physiology*
keywords: Critical swimming speed; Digestion; Fasting; Feeding; Oxygen consumption rate; Sterlet sturgeon