Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Relations between otolith length, otolith width, otolith the length/width ratio and fish total length
| species | n | total length (cm) | otolith length (mm) | otolith width (mm) | otolith length/width ratio | ||||
|---|---|---|---|---|---|---|---|---|---|
| min. | max | equation | r | equation | r | equation | r | ||
| N. melanostomus | 30 | 7.1 | 20.0 | y = 3.769x−1.570 | 0.988 | y = 7.725x−6.028 | 0.974 | y = 25.545x−26.655 | 0.837 |
| P. fluviatilis | 12 | 12.5 | 21.0 | y = 4.273x−4.862 | 0.976 | y = 7.890x−1.588 | 0.976 | y = 24.491x+70.207 | 0.657 |
| P. flesus | 21 | 8.8 | 26.0 | y = 5.575x−4.040 | 0.971 | y = 9.629x−6.041 | 0.976 | y = 19.699x−13.877 | 0.347 |
| C. harengus | 16 | 12.5 | 29.0 | y = 7.005x−6.099 | 0.967 | y = 17.131x−9.899 | 0.917 | y = 19.758x−21.645 | 0.585 |