JST Vol. 21 (1) Jan. 2013 - Pertanika Journal - Universiti Putra ...

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Metal Accumulation in the Mussels Eugene Ng, Y. J., Yap, C. K., Zakaria, M. P. and Tan, S. G. During the 10-week duration of transplantation from Sg. Melayu to the sampling site at Kg. Pasir Puteh, all the metal concentrations were generally found to have increased from 1.49 to 6.93 µg/g for Cd, 7.31 to 25.63 µg/g for Cu, 29.27 to 3150.06 µg/g for Fe, 17.13 to 33.98 µg/g for Ni, 6.13 to 43.59 µg/g for Pb and 8.19 to 184.73 µg/g for Zn (see Fig.2 to Fig.7). In specific, the heavy metal concentrations for all the metals in Kg. Pasir Puteh were significantly higher than those in Sg. Melayu (independent t-test, p< 0.05). Meanwhile, Fe accumulated the highest in the byssus and the total soft tissue while Pb accumulated the highest in the shells of the mussels transplanted from Sg. Melayu to Kg. Pasir Puteh. As for Cd, significant differences (one-way ANOVA, SNK, p< 0.05) were registered between the tissues for the mussels transplanted from Sg. Melayu to Kg. Pasir Puteh for T 0 and T 2. However, starting from T 6, the total soft tissue and byssus were significantly different from the shell. For Cu, the shell and byssus were significantly different from the total soft tissues during the transplant period, i.e. from T 0 to T 10. Meanwhile, significant differences were found between byssus, shell and total soft tissues for Fe concentrations. The Ni concentrations did not register any significant difference between TST, byssus and shell. For both sites, significant differences (one-way ANOVA, SNK, p< 0.05) were registered between the shell and byssus from the total soft tissues for Pb concentrations from T 0 to T 10. On the other hand, the Zn levels of byssus and total soft tissue were significantly different (one-way ANOVA, SNK, p< 0.05) from the shell in both the transplanted mussels. Table 6 shows the rate of accumulation for all the metals in the different parts of the mussels transplanted from Sg. Melayu to Kg. Pasir Puteh according to weeks. The rates of the metal accumulation were fastest in all the mussel parts in week 2 (T=2) but these became slower in the following weeks and up to week 10 (T=10). During the first 6 weeks of transplantation, the total soft tissues showed the highest concentration factors (CF) in Cd (2.06), Cu (1.81) and Fe (2.04) but the lowest CF in Ni (1.11). Meanwhile, byssus showed the highest CF in Pb (2.28) and Zn (2.28), and the shell showed the highest CF in Ni (1.80). For the period of 10-week transplantation, the total soft tissues showed the highest concentration factorss (CF) in Cd (2.06), Cu (1.81) and Fe (2.22). Byssus showed the highest CF in Pb (3.17) and Zn (3.30), while the shell showed the highest CF in Ni (1.98). These indicated that TST accumulated the highest Cd and Cu concentrations, while byssus accumulated the highest Pb and Zn concentrations and the shell accumulated the highest Ni concentration. The concentrations of Cd in the shell and Ni in TST in the transplanted P. viridis at week 10 reached the values similar to those measured in the initial P. viridis (T 0). Similar findings had previously been reported for Cu and Zn in the soft tissues of the mussel Mytilus edulis transplanted to a temperate polluted bay (Roesijadi et al., 1984) and Cr and Cu in Isognomon isognomon and Co, Ni and Zn in Gafrarium tumidum transplanted from a polluted site to a clean site in a New Caledonia lagoon (Hedouin et al., 2011). As for Ni in byssus, Fe in TST, Pb in byssus and shell and Zn in TST from the transplanted mussels (T 10), the levels significantly increased during the transplantation period but did not reach the values measured in the initial P. viridis (T 0). This could be due to the transplantation period being not long enough for the transplanted mussels to accumulate the metals completely. Comparable results had been 84 Pertanika J. Sci. & Technol. 21 (1): 283 - 298 (2013)
Assessment of Heavy Metal Pollution in the Straits of Johore by Using Transplanted Caged Mussel, Perna viridis TABLE 6: Concentration factor (CF), rates of accumulation (µg/g per day) of Cd, Cu, Fe, Ni, Pb and Zn in byssus, total soft tissue and shell of transplanted P. viridis from Sg. Melayu to Kg. Pasir Puteh Week CF Rate of accumulation Parts 6 10 2 6 10 Cd Byssus 1.114 1.134 0.010 0.009 0.006 TST 1.815 2.060 0.033 0.029 0.023 Shell 1.061 1.098 0.011 0.009 0.009 Cu Byssus 1.443 1.498 0.161 0.090 0.061 TST 1.666 1.807 0.316 0.225 0.164 Shell 1.490 1.720 0.145 0.085 0.075 Fe Byssus 1.742 1.898 48.662 29.330 21.286 TST 2.041 2.218 17.309 13.826 9.706 Shell 1.295 1.535 0.379 0.205 0.224 Ni Byssus 1.322 1.460 0.378 0.157 0.134 TST 1.081 1.109 0.149 0.059 0.048 Shell 1.802 1.984 0.774 0.327 0.241 Pb Byssus 2.279 3.172 0.231 0.419 0.426 TST 1.736 1.862 0.232 0.108 0.076 Shell 1.187 1.345 0.196 0.120 0.133 Zn Byssus 2.756 3.299 2.642 2.342 1.839 TST 1.918 2.270 2.653 1.388 1.153 Shell 1.518 1.867 0.134 0.101 0.102 previously reported for the oyster Crassostrea rhizophorae (Wallner-Kersanach et al., 2000), as well as oyster Isognomon isognomon and clam Gafrarium tumidum from the New Caledonia lagoon (Hedouin et al., 2011). However, Cd in byssus did not show any significant increase during the transplantation from Sg. Melayu to Kg. Pasir Puteh. This corresponded with similar observations for the Cd and Zn concentrations in Crenomytilus grayanus after two months of transplantation (Shulkin et al., 2003). The lack of Cd accumulation in the transplanted P. viridis, as observed in the current study, suggested that this particular element was rather poorly bioavailable for them or that P. viridis had efficient regulation mechanisms preventing these metals from being accumulated (Hedouin et al., 2011). For the mussels transplanted from Sg. Melayu to Kg. Pasir Puteh, the metal levels in all Pertanika J. Sci. & Technol. 21 (1): 283 - 298 (2013) 85
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Journal of Science & Technology Jou
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International Advisory Board Adarsh
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Selected Articles from UPM-Malaysia
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ISSN: 0128-7680 © 2013 Universiti
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Aspect of Fatigue Analysis of Compo
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Different Media Formulation on Bioc
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Tajau, R. et al. Ulanski, P., & Ros
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Aji, I. S., Zinudin, E. S., Khairul
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Aji, I. S., Zinudin, E. S., Khairul
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CONCLUSION Aji, I. S., Zinudin, E.
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REFERENCES N. Maizatul, I. Norazowa
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CBIR Using Colour and Shape Fused F
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Toward Automatic Semantic Annotatin
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Trust Value MF-ID 1 0.8 0.6 0.4 0.2
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A Negation Query Engine for Complex
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The Problem Association Rule Mining
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Association Rule Mining threshold t
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Association Rule Mining must be sor
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Association Rule Mining Quinlan, J.
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Che Mustapha Yusuf, J., Mohd Su’u
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Az Azrinudin Alidin and Fabio Crest
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Yogan Jaya Kumar, Naomie Salim, Ahm
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REFERENCES Yogan Jaya Kumar, Naomie
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Hasiah Mohamed@Omar, Azizah Jaafar
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The Role of Similarity Measurement
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TABLE 5: Winners MRS The Role of Si
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REFEREES FOR THE PERTANIKA JOURNAL
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Guidelines for Authors Publication
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table should be prepared on a separ
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Usability of Educational Computer G
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JST Vol. 21 (1) Jan. 2013 - Pertanika Journal - Universiti Putra ...

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