different * denotes significance at 5% level and ** denotes significance at 1% level. The power of the test is given if no significant difference was found (see text). Qeqertarsuaq Trend Test Significance Power   Blue mussel (4-5 cm) 94 99 t-test 0.22 0.30 Blue mussel (5-6 cm) 99 94 t-test 0.66 0.67 Blue mussel (6-7 cm) 99 94 t-test 0.73 0.05 Blue mussel (7-8 cm) 94 99 t-test 0.68 0.07 Blue mussel (8-9 cm) 99 94 t-test 0.05* Shorthorn sculpin, liver 94 00 99 ANCOVA    <0.01** Black guillemot, liver, adult 00 99 t-test    <0.01** Ringed seal, liver, 0 yrs 94 00 99 ANOVA 0.21 0.14 Ringed seal, liver, 1-3 yrs 94 99 00 ANOVA    <0.01** Ringed seal, liver, 4-6 yrs 99 00 94 ANOVA 0.61 0.11 Table 4.3.3. Results of statistical tests for difference in mean Cd concentrations in marine biota from Qeqertarsuaq. Trend gives the years in the order of decreasing mean concentrations on a logarithmic scale. Years underlined are not significant