Snapshot of Environmental Condition in Different Tropical Estuarine Systems by Using S. Cucullata (an Edible Oyster) As Bio-indicator

Overview

Journal Environ Sci Pollut Res Int

Publisher Springer

Specialties Environmental Health
Toxicology

Date 2019 Feb 25

PMID 30798497

Citations 1

Authors

Prantick Patra

Chellandi Mohandass

Parthasarathi Chakraborty

Affiliations

Soon will be listed here.

Abstract

Accumulation of toxic metals and indigenous bacteria in oyster, (Saccostrea cucullata) and their impact on antioxidant enzyme activities in the biological system was studied and used to provide snapshot of environmental condition in different tropical estuarine systems. The sedimentary Cd, Pb, and Hg concentration varied from 0.1 to 1.8, 22.0 to 98.0, and 0.03 to 0.11 mg kg (dry wt.) respectively. The bioaccumulated Cd, Pb, and Hg concentration in the oysters ranged from 3.6 to 9.0, 0.03 to 8.0, and 0.06 to 0.1 mg kg (dry wt.) respectively. In the oyster, the Cd concentration was well above the safe limit whereas the Pb and Hg concentrations were below the safe limit recommended by the European Commission (EC No. 1881/2006) for human consumption. The MPN value in the raw oyster for fecal coliforms (33-110 × 10/100 g) exceeded the United States Food and Drug Administration (USFDA) approved limits. Increase in antioxidant enzymes (catalase, superoxide dismutase, glutathione-s-transferase, and metallothionein) activities with increasing pollutants loading was observed. The activities of antioxidant enzymes in the oyster were found to be very useful tool for evaluating environmental condition in any tropical estuarine systems.

Citing Articles

Heavy metal concentrations in four fish species from the Lagos lagoon and their human health implications.

Adetutu A, Adegbola P, Aborisade A Heliyon. 2023; 9(12):e21689.

PMID: 38094042 PMC: 10716432. DOI: 10.1016/j.heliyon.2023.e21689.

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