Table 2. Measured guanylurea concentrations in medium, mortality, biometric data, biochemical and behavioural parameters of juvenile brown trout exposed to guanylurea. All data are displayed as arithmetic means ± standard deviations.
| Juvenile brown trout | ||||||
|---|---|---|---|---|---|---|
| Nominal water concentrations [µg/L] | 0 | 10 | 100 | 1000 | Hatchery control | |
| Measured (real) water concentrations [µg/L] | <LoQ | 11.8 ± 0.2 | 132.5 ± 2.4 | 1319 ± 60 | - | |
| Mortality [%] | 3.3 ± 4.7 | 3.3 ± 4.7 | 0.0 ± 0.0 | 0.0 ± 0.0 | - | |
| Body weight [g] | 2.80 ± 1.01 | 2.88 ± 0.83 | 2.83 ± 0.88 | 3.06 ± 0.80 | 8.66 ± 2.64 | |
| Body length [cm] | 6.4 ± 0.7 | 6.5 ± 0.7 | 6.5 ± 0.7 | 6.6 ± 0.6 | 9.1 ± 0.8 | |
| Hsp 70 level [relative grey value] | 1.15 ± 0.18 | 1.10 ± 0.20 | 1.18 ± 0.18 | 1.08 ± 0.21 | 1.09 ± 0.07 | |
| Total distance moved [cm] | 781.5 ± 786.2 | 1432.7 ± 1016.4 | 972.0 ± 452.0 | 912.3 ± 658.6 | - | |
| Mean velocity [cm/s] | 0.7 ± 0.7 | 1.3 ± 0.9 | 0.9 ± 0.4 | 0.8 ± 0.6 | - | |
Notes.
- LoQ
- limit of quantification