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Table 2 Zn,Cu,Cd,Ni and Pb concentration in livers, gills and muscle of Asian swamp eels on 4 different paddy seasons

From: Seasonal variation of heavy metals and metallothionein contents in Asian swamp eels, Monopterus albus (Zuiew, 1793) from Tumpat, Kelantan, Malaysia

Metal Tissue Plowing Seedling Growing Harvesting
Zn Liver 20.24 ± 2.27a 19.65 ± 1.87ab 17.30 ± 1.65bc 15.82 ± 0.92c
Gills 29.02 ± 6.51a 27.92 ± 2.10a 24.00 ± 3.42a 25.46 ± 4.28a
Muscle 11.47 ± 2.51ab 12.09 ± 1.09a 11.69 ± 1.19ab 9.14 ± 0.61b
Cu Liver 1.75 ± 1.20ab 2.45 ± 0.78a 1.00 ± 0.85c 0.53 ± 0.31c
Gills 0.17 ± 0.09a 0.09 ± 0.01a 0.13 ± 0.11a 0.09 ± 0.07a
Muscle 0.04 ± 0.01a 0.04 ± 0.01a 0.04 ± 0.01a 0.04 ± 0.01a
Cd Liver 0.10 ± 0.08bc NA 0.59 ± 0.25a 0.37 ± 0.11ab
Gills NA NA 0.66 ± 0.60a 0.09 ± 0.07b
Muscle NA NA 0.16 ± 0.08a 0.08 ± 0.02b
Ni Liver 3.71 ± 1.63a 2.09 ± 0.46ab 1.75 ± 0.76b 2.42 ± 0.65ab
Gills 15.92 ± 8.35a 9.21 ± 2.74a 7.41 ± 2.83a 7.47 ± 1.53a
Muscle 2.57 ± 0.60a 1.94 ± 0.79ab 1.4 ± 0.46b 2.14 ± 0.35a
Pb Liver 0.47 ± 0.17a 0.35 ± 0.01a 0.54 ± 0.32a 0.36 ± 0.04a
Gills 1.53 ± 0.84a 0.71 ± 0.20a 1.14 ± 0.95a 0.58 ± 0.22a
Muscle 0.33 ± 0.05a 0.34 ± 0.01a 0.34 ± 0.10a 0.35 ± 0.01a
  1. Remark:Values are given in mean ± S.D
  2. Post-Hoc: Mean metal concentrations of different parts of tissues sharing a common letter
  3. for a particular metal present no significant differences, p > 0.05