Number of samples with fish presence
Nagelkerke R2
Hosmer-Lemeshow t-test value
Accuracy (%)
Sensitivity (%)
Specificity (%)
Three-spined stickleback 21 0.668 1.00 96.1 42.9 98.5
Ninespine stickleback 19 0.466 0.08 96.9 42.1 99.1
Perch 85 0.451 0.55 87.7 49.4 95.3
Minnow 42 0.407 0.82 92.0 11.9 99.6
Bullhead 63 0.381 0.31 89.7 36.5 97.6
Stone loach 64 0.352 0.42 88.3 23.4 98.1
Grayling 28 0.325 0.24 95.3 25.0 99.6
Roach 38 0.275 0.90 92.6 10.5 99.6
Brook trout 18 0.259 0.81 96.3 0.0 100.0
Northern pike 101 0.192 0.50 80.5 13.9 97.9
Burbot 101 0.174 0.41 79.5 8.9 97.9
Brown trout 255 0.123 0.37 62.8 72.9 51.7
Brook lamprey 28 0.058 0.08