Pentanmius guigarius

Metal	Muscle	Head	Eye	Gill	Bone	Overall mean
Cr	BDL	0.32^c	0.35^b	0.49^a	0.35^b	0.3
Cd	BDL	0.21^c	0.33^b	0.48^a	0.32^b	0.27
Pb	0.09^c	0.20^a	0.20^a	0.15^b	0.12^c	0.15
Cu	BDL	BDL	BDL	0.87^a	0.59^b	0.29
Zn	0.34^d	0.38^c	0.38b^c	0.51^a	0.10^b	0.4
Ni	BDL	0.02^d	0.04^d	0.03^d	BDL	0.02

Data are mean of replicate (2) determinations. BDL: Below instrument detection limit. Letters a, b, c, and d show differences among the different tissues. Data shown with different letters are statistically different at P<0.05 level.

Table 4b: Level of heavy metal in Pentanmius guigarius organs (mg/kg).