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Linkage between speciation of Cd in mangrove sediment and its bioaccumulation in total soft tissue of oyster from the west coast of India

DRS at CSIR-National Institute of Oceanography

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Title Linkage between speciation of Cd in mangrove sediment and its bioaccumulation in total soft tissue of oyster from the west coast of India
 
Creator Chakraborty, P.
Ramteke, D.
Gadi, S.D.
Bardhan, P.
 
Subject GEOLOGY AND GEOPHYSICS
CRUSTACEANS
AQUATIC POLLUTION
AQUATIC ECOLOGY, PRODUCTIVITY
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
 
Description This study established a mechanistic linkage between Cd speciation and bioavailability in mangrove system from the west coast of India. High bioaccumulation of Cd was found in the oyster (Crassostrea sp.) even at low Cd loading in the bottom sediment. Bioaccumulation of Cd in the oyster gradually increased with the increasing concentrations of water soluble, exchangeable and carbonate/bicarbonate forms of Cd in the sediments. Fe/Mn oxyhydroxide phase was found to control Cd bioavailability in the sediment system. Cd-associated with sedimentary organic matter was bioavailable and organic ligands in the sediments were poor chelating agents for Cd. This study suggests that bioaccumulation of Cd in oyster (Crassostrea sp.) depends not on the total Cd concentration but on the speciation of Cd in the system
 
Date 2016-05-12T12:46:39Z
2016-05-12T12:46:39Z
2016
 
Type Journal Article
 
Identifier Marine Pollution Bulletin, vol.106(1-2); 2016; 274-282
no
http://drs.nio.org/drs/handle/2264/4972
 
Language en
 
Relation Mar_Pollut_Bull_106_274.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2015] Elsevier
 
Publisher Elsevier