Upper Midwest Environmental Sciences Center
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Gebler, R. J. (1998). Examples of near-natural fish passes in Germany: drop structure conversions, fish ramps and bypass channels. Pages 403-419 in M. Jungwirth, S. Schmutz and S. Weiss, eds. Fish Migration and Fish Bypasses, Fishing News Books, Vienna (Austria).
Since 1990, several different types of near-natural fish passes have been constructed by the author. This chapter presents a short compendium of near-natural fishways, including the design criteria, costs and comments concerning the practical experience gained in both the construction and monitoring phases. Addressed are engineers, biologists and other faculties involved in fish pass construction.