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Bioaccumulation of heavy metals and analysis of mineral element alongside proximate composition in foot, gills and mantle of freshwater mussels (Anodonta anatina)

Lookup NU author(s): Dr Abdul Chaudhry, Professor Naureen Qureshi

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Abstract

Bioaccumulation of heavy metals and analysis of mineral element alongside proximate composition were studied in tissues of freshwater mussels (Anodonta anatina) exposed to various doses of Pb, Cu and Cr in water. The concentrations of all the studied heavy metals in soft tissues of the mussels increased as the metal doses were increased from 0 to 360 mu g/L of water. The highest concentration of Cu was observed in the gills of mussels at the highest dose (360 mu g/L), whereas the lowest concentration was observed in the Cr-exposed mussels at lower dose (120 mu g/L). Amongst mineral elements, Ca was found to be the most abundant element in all tissues. The maximum Ca (156,906 +/- 736 mg/kg) was observed in the gills. The abundance order of the other mineral elements was P > Mn > Na > K > Zn. Proximate analysis showed that the protein (15.45 +/- 1.13 %), fat (0.97 +/- 0.10 %) and moisture (77.78 +/- 1.20 %) contents were significantly higher in the foot, whereas the carbohydrate (15.15 +/- 1.30 %) and ash (10.55 +/- 1.11 %) contents were higher in the mantle and gills, respectively. It was found that the low-dose exposure of Pb and Cu and the high-dose exposure of Cr caused higher protein content in the foot. It appears that freshwater mussels (Anodonta anatina) are an essential tool for biomonitoring studies. However, specific evaluation of mussel tissues was more effective than using the whole animal in these studies.


Publication metadata

Author(s): Sohail M, Khan MN, Chaudhry AS, Qureshi NA

Publication type: Article

Publication status: Published

Journal: Rendiconti Lincei

Year: 2016

Volume: 27

Issue: 4

Pages: 687-696

Print publication date: 01/12/2016

Online publication date: 06/07/2016

Acceptance date: 23/06/2016

ISSN (print): 2037-4631

ISSN (electronic): 1720-0776

Publisher: Springer

URL: http://dx.doi.org/10.1007/s12210-016-0551-5

DOI: 10.1007/s12210-016-0551-5


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