Accumulation of Heavy Metals in Crayfish and Fish from Selected Czech Reservoirs

Table 3

Statistical comparison of metal accumulation in hepatopancreas of crayfish from Boskovice, Landštejn, Nová Říše, and Darkovské moře.

Test	Cd	Cr	Cu	Pb	Hg	Ni	Zn
𝐾𝑊−𝐻 (3, 40)	25.81	25.46	32.57	34.39	12.87	5.61*	15.54
𝑃	<0.05	<0.05	<0.05	<0.05	<0.05	>0.05	<0.05

∗df = 2 since nickel was not detected in crayfish hepatopancreas from Darkovské moře.