Table 1 Total Aluminum [Al tot] in hatchery river Otra water (Control; pH 6.5 and TGP 100%), gas super saturated hatchery water (GSS; pH 6.5 and a total gas pressure (TGP) of 110%), hatchery water with simulated environmental acidification (SEA; pH 5.5 + Al; and TGP 100%) or the combination of GSS and SEA (GSS + SEA; pH5.5 + Al and TGP 110%), and Gil aluminum in Atlantic salmon (Salmo salar ssp. bleke) originating from landlocked population in the River Otra kept in these water treatments for six days. For SEA, H2SO4 was used to acidify the water and AlCl3.6H2O was added to a nominal concentration of 67 μg [Al] l−1. group. Values are median (− 25th percentile + 75%th percentile), Significance level P < 0.016 after Bonferroni correction; α/3) and n = 4.
Control | GSS | M–W U test | SEA | GSS + SEA | M–W U test | |
|---|---|---|---|---|---|---|
[Altot] (ng ml−1) | 95 (− 95 + 109.5) | 95.5 (− 92 + 103) | Z = 0.43; P < 0.65 | 170 ± (− 170 + 175) | 157 (− 150 + 160) | Z = 2.2; P < 0.03 |
Gill Al (ng g−1 dry wieght) | 3.0 (− 2.6 + 3.8) | 2.7 (− 2.5 + 3.4) | Z = 0.4; P < 0.69 | 327 (− 240 + 524) | 334 (− 295 + 368) | Z = 0.0; P = 1 |