caa a22 4500 445893192 CHVBK 20180317145623.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10750-011-0809-y doi (NATIONALLICENCE)springer-10.1007/s10750-011-0809-y Aerobic swimming performance of juvenile Schizothorax chongi (Pisces, Cyprinidae) in the Yalong River, southwestern China [Elektronische Daten] [Zhiying Tu, Xi Yuan, Jingcheng Han, Xiaotao Shi, Yingping Huang, David Johnson] Schizothorax chongi (locally known as Xilian Yu), a fish species commonly found in Yalong River, has been declining quickly in recent years. One of the important factors, among many, is the interruption of the free flowing river by dams. To obtain data that can be applied to the design of a fishway for S. chongi and other species in the community, a laboratory study of juvenile S.chongi's swimming energetics and kinematics was conducted in a flume-type respirometer equipped with a high speed video camera system to record swimming behavior. The aerobic metabolic rate, tail beat frequency (TBF) and tail beat amplitude (TBA) were measured during steady swimming at varying flow rates for fish of similar mass. A power function accurately describes the relationship between oxygen consumption rate (MO2) and swimming speed (U). The estimated standard metabolic rate (SMR) calculated from the power function was 445.34mgO2kg−1h−1, similar to the experimental result of 431.5mgO2kg−1h−1. The relationship between cost of transport (COT) and U was, characteristically, inverse bell-shaped, with COTmin=44.6Jkg−1m−1 at U opt=5.5 body lengths per second (bls−1). There was a significant positive linear correlation between TBF and U. The slope of the correlation (0.33) was lower than for many other species, implying that S. chongi swim efficiently. The TBA, ranging from 0.15 to 0.2bl, was found to be independent of U. Kinematic analyses indicates that S. chongi primarily depends on the caudal fin to generate forward thrust and employs three velocity-dependent swimming gaits. This investigation provides data on the swimming ability of S. chongi that will add to the basic science required for fishway design. Springer Science+Business Media B.V., 2011 Schizothorax chongi nationallicence Aerobic metabolism nationallicence Swimming performance nationallicence Fishway nationallicence Tu Zhiying School of Resource and Environmental Science, Wuhan University, 430079, Wuhan, China aut Yuan Xi Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut Han Jingcheng Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut Shi Xiaotao Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut Huang Yingping Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut Johnson David School of Natural Sciences and Mathematics, Ferrum College, 24088, Ferrum, VA, USA aut Hydrobiologia Springer Netherlands 675/1(2011-10-01), 119-127 0018-8158 675:1<119 2011 675 10750 https://doi.org/10.1007/s10750-011-0809-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0809-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tu Zhiying School of Resource and Environmental Science, Wuhan University, 430079, Wuhan, China aut NATIONALLICENCE 700 1- Yuan Xi Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut NATIONALLICENCE 700 1- Han Jingcheng Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut NATIONALLICENCE 700 1- Shi Xiaotao Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut NATIONALLICENCE 700 1- Huang Yingping Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, 443002, Yichang, Hubei, China aut NATIONALLICENCE 700 1- Johnson David School of Natural Sciences and Mathematics, Ferrum College, 24088, Ferrum, VA, USA aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 675/1(2011-10-01), 119-127 0018-8158 675:1<119 2011 675 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer