Antenna # No. of fish % of tagged % of detected
1† (Exit = upstream end at ramp to Danube) 69 36,3 86,3
2 (within the upstream ramp) 59 31,1 73,8
3 (in the Aschach river above confluence with the bypass) 49 25,8 61,3
4 (in the Innbach river above confluence with the bypass) 38 20,0 47,5
5 (Entrance = downstream end of bypass) 21 11,1 26,3
Total 80 42,1 100