Summary of Abstract Submission

Abstract Submission No. IO50-03-0059PresentationPoster

BIOACCUMULATION OF SOME HEAVY METALS IN COMMERCIALLY IMPORTANT OYSTERS CRASSOSTREA SP. FROM GOA, CENTRAL WEST COAST OF INDIA

Prachi S. Shenai-Tirodkar*1, Mangesh U. Gauns1, Zakir A. Ansari 1, Anirudh Ram2

1 NIO, India
2 RC-NIO, India

ABSTRACT :

Oyster beds along the Goa coast (central west coast of India) are exposed to various anthropogenic activities and are severely exploited round the year for human consumption. In this perspective, concentrations of heavy metals (Cu, Ni and Pb) were estimated in tissues of two oyster species (Crassostrea madrasensis and C. gryphoides). For this investigation, oysters were collected for fourteen months (April, 2013¿May, 2014) from two tropical estuarine regions (Chicalim Bay and Nerul Creek) along the Goa coast and metal concentration in tissues were estimated using Graphite Furnace Atomic Absorption Spectroscopy (GF-AAS) and Inductively Coupled Plasma Optical Emission Spectrophotometer (ICP-OES). Among the measured element Cu (68.19¿1155.16 mg kg-1) was highest bioconcentrated than Ni (0.12¿4.51 mg kg-1) and Pb (0.10¿1.15 mg kg-1). Moreover, concentration of Cu and Pb were exceeding the recommended limit set by FAO (Food and Agriculture Organization) and EU (European Union) respectively. This baseline study indicates that oysters can be used as a bioindicator for heavy metal pollution along the Goa coast.