Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR028981 |
Evaluating dam water release strategies for migrating adult salmon using computational fluid dynamic modeling and biotelemetry | |
Pengcheng Li; Wenming Zhang; Nicholas J. Burnett; David Z. Zhu; Matthew Casselman; Scott G. Hinch | |
2021-07-26 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | Hydrodynamics in dam tailraces can influence the swimming behaviour and survival of fish, and yet there have been few studies that have linked the movement patterns of fish to encountered flow patterns. In this study, we examined the flow field downstream of Seton Dam in British Columbia, Canada using acoustic Doppler current profilers (ADCPs) and computational fluid dynamic (CFD) modeling of two dam water release scenarios to understand their impacts on the swim speed and behaviour of upriver-migrating adult sockeye salmon (Oncorhynchus nerka). Forty-five sockeye salmon were tagged with acoustic transmitters and tracked to understand their movement patterns, swim speed, residence time in the dam tailrace, and post-dam passage survival. The water release scenarios produced contrasting tailrace hydrodynamics and altered the behaviour of migrating sockeye salmon. Tagged fish avoided areas of high velocity (> 2.4 m/s or 4 body-lengths/s, twice their critical swim speed), high Reynolds shear stress (> 21 Pa) and high turbulence kinetic energy (> 0.12 m2s-2) in the dam tailrace. Excessive use of anaerobic metabolism, together with high water shear stress adjacent to and downstream of the fishway entrance, were thought to be the main cause for low post-dam passage survival of sockeye salmon. Additional dam water release strategies were assessed with the CFD model to target releases that improve the migration conditions for sockeye salmon. Our study highlights the importance of pairing hydraulic and ecological information to better understand and improve the migration conditions for wild fish. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335374 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Pengcheng Li,Wenming Zhang,Nicholas J. Burnett,et al. Evaluating dam water release strategies for migrating adult salmon using computational fluid dynamic modeling and biotelemetry[J]. Water Resources Research,2021. |
APA | Pengcheng Li,Wenming Zhang,Nicholas J. Burnett,David Z. Zhu,Matthew Casselman,&Scott G. Hinch.(2021).Evaluating dam water release strategies for migrating adult salmon using computational fluid dynamic modeling and biotelemetry.Water Resources Research. |
MLA | Pengcheng Li,et al."Evaluating dam water release strategies for migrating adult salmon using computational fluid dynamic modeling and biotelemetry".Water Resources Research (2021). |
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