互锁的地毯坡道对高原溪流中褐鳟上游运动的影响

IF 4.6 Q2 ENVIRONMENTAL SCIENCES
K. Plesiński, C. Gibbins, A. Radecki-Pawlik
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引用次数: 14

摘要

摘要本文评估了互锁地毯块坡道(ICBRs)阻碍褐鳟鱼洄游的程度(L. 1758)。本文介绍了在高梯度河流中广泛用于消能的ICBR的水力条件的模型模拟。模型模拟与公布的鱼类上游运动的水力适宜性标准相关,以评估单个路线的可用性,路线之间的连通性以及路线是否允许上游通过整个坡道。结果表明,在大多数模拟放电中,存在连通路径。然而,由于游泳能力和最小可用水深的限制,较高和较低的流量似乎施加了限制。在使用不同水力标准的模拟中,不同泄洪条件下的水力适宜性和潜在路径连通性的精确模式有明显差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of interlocked carpet ramps on upstream movement of brown trout Salmo trutta in an upland stream
Abstract This paper assesses the extent to which Interlocked Carpet Block Ramps (ICBRs) impede the upstream movement of brown trout Salmon trutta (L. 1758). It presents model simulations of hydraulic conditions across an ICBR of the type used widely for energy dissipation in high gradient rivers. Model simulations were related to published hydraulic suitability criteria for upstream movement of fish to assess the usability of individual routes, connectivity between routes and whether routes were available to allow upstream passage across the whole ramp. Results suggest that connected routes were available at most of the simulated discharges. Nevertheless, higher and lower discharges appeared to impose constraints, due to swimming ability and minimum useable water depths, respectively. Precise patterns of hydraulic suitability and connectivity of potential routes at different discharges varied appreciably between simulations using the different hydraulic criteria.
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7.10
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