Distribution and health risk assessment of trace metals in freshwater tilapia from three different aquaculture sites in Jelebu Region (Malaysia)

Low, Kah Hin; Zain, Sharifuddin M.; Abas, Mhd Radzi Bin; Salleh, Kaharudin Md.; Teo, Yin Yin

doi:10.1016/j.foodchem.2015.01.059

Cited by 38 publications

(19 citation statements)

References 16 publications

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“…from the Selangor River, which could be associated with a higher content of Na, Ni, Ca, and Cr, whereas those corresponding to negative scores are aquaculture produce associated with Mg and K. It is suspected that variations in the accumulation of Mg and K in the livers of cultivated samples were probably caused by aquaculture practices, such as the utilization of metal-enriched fish feeds, metal-based antifoulants, and so forth. [35] Considering the results from Fig. 2 and Table 3, it can be said that the wild Pangasius sp.…”

Section: Resultsmentioning

confidence: 95%

Evaluation of Elemental Distributions in Wild-Caught and FarmedPangasiussp. Using Pattern Recognition Techniques

Low

Idris

Zain

et al. 2015

International Journal of Food Properties

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Pangasius sp. were determined using microwave-assisted digestion/inductively coupled plasma-mass spectrometry. The clustering tendency related to elemental patterns associated with tissue variants and fish habitats were explored using hierarchical cluster analysis and principal component analysis. The results revealed that the general elemental accumulation pattern was strongly dependent on the type of tissue, whereas latent deviations within particular tissue samples can be linked to the natural variability between wild-caught and farmed fish. The inherent elemental patterns allowed us to differentiate between those wild-caught and farmed fish through linear discrimination analysis with 100% precision. In terms of food safety, the elemental concentrations in edible muscle were found to be far below the legal limits, as the associated health risks at the 90th percentile were well within tolerable regions, although wild-caught fish were found to pose a higher risk.

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Section: Resultsmentioning

confidence: 95%

Evaluation of Elemental Distributions in Wild-Caught and FarmedPangasiussp. Using Pattern Recognition Techniques

Low

Idris

Zain

et al. 2015

International Journal of Food Properties

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“…An extensive literature is available on the bioaccumulation of toxic metals in freshwater fish including Cd 2+ and Pb 2+ (Hosseini Alhashemi et al 2012, Low et al 2015. However, fewer studies have explained their effects on the structural and compositional changes in various tissues of the exposed organisms (Krishnakumar et al 2012, Palaniappan andRenju 2009).…”

Section: Discussionmentioning

confidence: 99%

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Khan¹,

Liu²,

Li³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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Contamination of aquatic ecosystems with toxic metals such as Cd 2+ and Pb 2+ is a serious issue in the industrialized world, which can affect freshwater fish even at low concentrations. The aim of the present study was to investigate the effect of Cd 2+ and Pb 2+ alone or in combination on the biochemical constituents of liver and muscle in Crucian carp using Fourier Transform Infrared Spectroscopy (FT-IR). Results from the spectral analysis revealed significant decline in protein and increase in lipids in the two tissues with marked effect caused by the combined exposure of Cd 2+ and Pb 2+ . In case of liver, alteration in the intensity and band area at amide I resulted in a differential response of structural protein for the exposed groups. Furthermore, a decrease in the α-helix and alterations in the nucleic acids content was also observed in both liver and muscle of the exposed fish. Moreover, biochemical alterations in the vital tissue of freshwater fish due to toxic contaminants can be used as a marker of environmental pollution with the help of FT-IR spectroscopy.

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“…On the other hand, Hg species could either remain in river water or sediment based on sediment-water partition coefficient depending on various aquatic environments. Consequently, both Hg-contained river water and sediment could be potential exposure sources to freshwater tilapia species (Low et al 2015;Malczyk and Branfireun 2015).…”

Section: Problem Formulationmentioning

confidence: 99%

Assessing exposure risks for freshwater tilapia species posed by mercury and methylmercury

et al. 2016

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Waterborne and dietborne exposures of freshwater fish to mercury (Hg) in the forms of inorganic (Hg(II)) and organic (methylmercury or MeHg) affect their growth, development, and reproduction. However, an integrated mechanistic risk model framework to predict the impact of Hg(II)/MeHg on freshwater fish is lacking. Here, we integrated biokinetic, physiological and biogeographic data to calibrate and then establish key risk indices-hazardous quotient and exceedance risk-for freshwater tilapia species across geographic ranges of several major rivers in Taiwan. We found that Hg(II) burden was highest in kidney followed by gill, intestine, liver, blood, and muscle. Our results showed that Hg was less likely to pose mortality risk (mortality rate less than 5 %) for freshwater tilapia species. However, Hg is likely to pose the potential hazard to aquatic environments constrained by safety levels for aquatic organisms. Sensitivity analysis showed that amount of Hg accumulated in tilapia was most influenced by sediment uptake rate. Our approach opens up new possibilities for predicting future fish population health with the impacts of continued Hg exposure to provide information on which fish are deemed safe for human consumption.

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Distribution and health risk assessment of trace metals in freshwater tilapia from three different aquaculture sites in Jelebu Region (Malaysia)

Cited by 38 publications

References 16 publications

Evaluation of Elemental Distributions in Wild-Caught and FarmedPangasiussp. Using Pattern Recognition Techniques

Evaluation of Elemental Distributions in Wild-Caught and FarmedPangasiussp. Using Pattern Recognition Techniques

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Assessing exposure risks for freshwater tilapia species posed by mercury and methylmercury

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