Table 2.

Statistical analysis of Hg content in the investigated fish samples [mg/kg].

Fish	N	AM ± SD	Median	Quartile		p
				Q1	Q3
All	68	0.084 ± 0.120	0.045	0.017	0.092
Marine	38	0.100 ± 0.146	0.060	0.028	0.096	0.097
Freshwater	30	0.063 ± 0.073	0.024	0.013	0.089

AM—arithmetic mean, SD—standard deviation, Q₁—first quartile, Q₃—third quartile, p—probability ratio.