Sandimirov S. Heavy metal contents in whitefish (Coregonus lavaretus) along a pollution gradient in a subarctic watercourse. Environ. Monit. Assess. 2011, V. 182, №1-4, p. 301-316.

308 Environ Monit Assess (2011) 182:301-316 Fig.3 Concentrations of a Zn, b Pb and c Hg in gills, liver, kidney and muscle tissue of SR (filled squares) and DR whitefish (circles) in the studied lake localities (1 Kuetsjarvi, 2 Skrukkebukta, 3 Vaggatem, 4 Rajakoski, 5 Lake Inari). Note different scales on the y-axes. Vertical bars indicate SE a) Zn b) Pb c) Hg - 0.5 1 2 3 4 5 Lake locality Somatic growth, condition and sexual maturation of the whitefish morphs Both the DR and SR whitefish morphs had the slowest growth performance in Kuetsjarvi with L TO values of 16.9 and 15.4 cm, respectively (Fig. 5) . The DR whitefish grew significantly faster in the other lakes and the largest LTOvalue was observed in Rajakoski. The growth rates of the SR whitefish were also considerably higher Table 3 Correlations (Pearson correlation test) between metal concentrations in fish tissue and in water and surficial sediments Fish tissue Ni Cu Cd Zn Pb Hg Water Gills 0.99 (0.002) 0.99 (0.001) -0.24 (0.700) 0.42 (0.479) -0.11 (0.860) - Liver 0.98 ( 0 . 002 ) 0.91 ( 0 . 033 ) -0.21 ( 0 . 739 ) -0.57 ( 0 . 318 ) 0.02 (0.971) - Kidney 0.92 ( 0 . 027 ) 0.83 (0.079) -0.51 ( 0 . 379 ) 0.52 (0.372) 0.18 (0.771) - Muscle 0.96 ( 0 . 010 ) 0.39 ( 0 . 511 ) -0.45 ( 0 . 445 ) 0.24 (0.692) 0.92 ( 0 . 024 ) - Surficial sediments Gills 0.99 (0.001) 0.99 (0.001) 0.96 (0.010) -0.34 (0.580) 0.65 (0.234) -0.50 (0.390) Liver 0.99 ( 0 . 002 ) 0.91 (0.034) 0.89 ( 0 . 041 ) 0.15 (0.812) 0.59 (0.299) - 0.66 ( 0 . 222 ) Kidney 0.93 ( 0 . 024 ) 0.87 (0.053) 0.68 (0.205) 0.06 (0.921) 0.75 (0.142) -0.41 (0.490) Muscle 0.96 ( 0 . 009 ) 0.48 (0.416) 0.58 ( 0 . 310 ) 0.79 (0.113) 0.13 (0.834) -0.77 ( 0 . 132 ) P values for the correlation are given in brackets, and correlations with P values below 0.05 are emphasized in bold. Hg concentrations in water were below the measurement threshold, and no correlations are given Springer