水利学报2017，Vol.48Issue(8)：924-932,944,10.DOI:10.13243/j.cnki.slxb.20160822
竖缝式鱼道水力特性与鱼类运动特性相关性分析
The correlation analysis between hydraulic characteristics of vertical slot fishway and fish movement characteristics
摘要
Abstract
The vertical slot fishway (VSF),which can be viewed as an ecological compensation measure,plays a major role in enabling anadromous fish migration,which has received extensive attention.The fishway passage efficiency is closely related to the VSF hydraulic characteristics and fish's swimming capability.Therefore,an excellent VSF design should be suitable between the hydraulic characteristics of VSF and the fish's swimming capability.Taking two anadromous fishes,Ctenopharyngodon idellus and Aristichthys nobilis,as an example,this paper quantitatively analyzed the fishes' movement characteristics,the preferred hydraulic ranges and the relevance of hydraulic factors and fish trajectories by combined the spatial distribution of hydraulic factors with fish trajectories in VSF.The results show that the preferred ranges of turbulent kinetic energy,velocity,turbulent dissipation rate and strain rate are 0.02-0.035 m2/s2,0.16-0.4 m/s,0.02-0.04 m2/s3 and 2-3.5 s-1,respectively with the flow of 0.135 m3/s in VSF.The times swimming upstream of the two fishes in different water areas are greatly associated with turbulent kinetic energy and velocity.In our study,the flow velocity,as a vector reflecting the rheotaxis of fish,determines the movement of fish,but their swimming behavior in local water area is mainly determined by turbulent kinetic energy.关键词
竖缝式鱼道/四大家鱼/水力因子/运动轨迹/相关性分析Key words
VSF/major Chinese carps/hydraulic factors/fish movement trajectories/correlation analysis引用本文复制引用
谭均军,高柱,戴会超,石小涛..竖缝式鱼道水力特性与鱼类运动特性相关性分析[J].水利学报,2017,48(8):924-932,944,10.基金项目
国家自然科学基金项目(51279047,51579136,51409151) （51279047,51579136,51409151）
三峡库区生态环境教育部工程研究中心开放基金(KF2015-01) （KF2015-01）
