Cai Lu, Huang Yingping, Johnson David, Li Minne, Liu Rui, Hu Wangbin, Jin Yao, Chen Xiaojuan, Tao Jiangping, Zou Xuan, Hou Yiqun
Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, China.
Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, China Three Gorges University, Yichang, China.
Front Physiol. 2023 Jul 20;14:1152697. doi: 10.3389/fphys.2023.1152697. eCollection 2023.
The primary objective of this investigation was to study the effect of altitude on fish swimming ability. Different species were tested to ensure that the differences observed are not associated with a single species. Fish critical swimming speed and burst speed were determined using stepped-velocity tests in a Brett-type swimming respirometer. Based on the effects of water temperature and dissolved oxygen, it is clear that the swimming ability of fish decreases as altitude increases. Further, because the effects of high altitude on fish physiology go beyond the effects of lower temperature and dissolved oxygen, we recommend that fish swimming ability be tested at an altitude similar to the target fishway site to ensure the validity of fish data used for fishway design.
本研究的主要目的是研究海拔高度对鱼类游泳能力的影响。对不同物种进行了测试，以确保观察到的差异并非与单一物种相关。使用布雷特型游泳呼吸仪通过阶梯速度测试来测定鱼类的临界游泳速度和爆发速度。基于水温与溶解氧的影响，很明显鱼类的游泳能力会随着海拔升高而下降。此外，由于高海拔对鱼类生理的影响超出了低温和低溶解氧的影响，我们建议在与目标鱼道场地相似的海拔高度测试鱼类游泳能力，以确保用于鱼道设计的鱼类数据的有效性。
