Table 2.

Mean values and standard deviations (s.d.) of metal content (mg/Kg) in the liver, gill, and muscle of fish from the Port of Genoa and the fishpond of S’Ena Arrubia. Mean values and s.d. were calculated on the total of 38 fish sampled for each site in the two sampling campaigns

	Tissue	Port of Genoa		Fishpond of S’Ena Arrubia
		Mean	s.d	Mean	s.d
Al	Liver	56.285***	61.697	16.816	15.510
	Gills	29.619***	17.853	17.716	8.246
	Muscle	17.528***	5.760	11.719	4.848
As	Liver	1.977	1.253	2.967***	1.451
	Gills	0.282	0.156	0.569***	0.587
	Muscle	0.904	0.813	0.670	0.239
Cd	Liver	0.172	0.177	0.164	0.120
	Gills	0.011	0.018	0.011**	0.004
	Muscle	0.007*	0.002	0.006	0.003
Cr	Liver	1.386***	2.959	0.434	0.945
	Gills	0.162**	0.149	0.040	0.016
	Muscle	0.060	0.039	0.047	0.024
Fe	Liver	1466.093***	933.402	595.975	589.188
	Gills	87.091*	36.779	67.577	37.988
	Muscle	16.439***	30.253	4.219	1.983
Mn	Liver	2.915	1.471	3.248***	1.318
	Gills	11.233	9.118	17.851*	14.911
	Muscle	2.693***	2.402	1.651	0.650
Hg	Liver	0.073	0.069	0.041	0.035
	Gills	0.006*	0.005	0.004	0.002
	Muscle	0.012	0.009	0.008	0.004
Ni	Liver	1.371***	1.470	0.497	0.629
	Gills	0.131***	0.098	0.073	0.041
	Muscle	0.030	0.017	0.047**	0.052
Pb	Liver	1.245***	1.281	0.117	0.181
	Gills	5.028***	3.212	0.258	0.175
	Muscle	0.131***	0.160	0.048	0.069
Cu	Liver	313.510***	277.316	114.147	58.590
	Gills	1.387***	0.726	0.770	0.217
	Muscle	0.512*	0.135	0.447	0.174
Zn	Liver	46.054	21.467	60.699*	31.993
	Gills	22.601***	5.350	17.577	2.907
	Muscle	4.398	1.046	4.982	2.797

Asterisks highlight statistically significant differences between sites: *p value < 0.05; **p value < 0.005; ***p value < 0.001