Metals Muscle Head Eye Gill Bone Overall mean Cr BDL 0.37c 0.62b 1.28a 0.38c 0.53 Cd BDL 0.26c 0.49b 1.14a 0.32c 0.44 Pb 0.10e 0.34b 0.14c 0.40a 0.11d 0.22 Cu 0.58b BDL BDL 1.88a 0.59b 0.61 Zn 0.35c 0.36c 0.65b 1.29a 0.39c 0.61 Ni BDL 0.01d 0.01d 0.05d BDL 0.01 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 4c: Level of heavy metal in Pseudotolithus senegalensis organs (mg/kg).