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Horizontal BAR Rack Bypass Systems for Fish Downstream Migration: State of Knowledge, Limitations, and Gaps

Author(s): Julian Meister; Helge Fuchs; Ismail Albayrak; Robert M. Boes

Linked Author(s): Ismail Albayrak

Keywords: No Keywords

Abstract: Following the implementation of the European Water Framework Directive, fish downstream migration has rapidly gained importance in recent years. A number of small-to medium-sized hydropower plants in Europe were equipped with horizontal bar rack bypass systems (HBR-BS) in the past decade. Nevertheless, hardly any systematic studies have been conducted so far to optimize and verify these state of the art downstream fish passage facilities. The present contribution gives an overview of the state of the art of fish downstream migration in Europe, identifies relevant research questions, and describes current laboratory investigations conducted at the Laboratory of Hydraulics, Hydrology, and Glaciology (VAW) of ETH Zurich.


Year: 2018

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