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Summary l l l l l l l

VERBUND operates 46 fish passes different age (period of more than 50 years) 67 % are nature-like designed different elevation, different discharge since the 1980s pool passes or combination pool passes and brooks we started early with monitoring programs they fulfil her function as + ascent route + breeding ground + habitat for young fish l standard in new projects

Results are important in discussion for “realization European Framework Directive� 04 10 05 Fish ladders seen from the operatiors point of view_STH