NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.41 [2012] >
IJMS Vol.41(2) [April 2012] >


Title: Acute Toxicity of Metals: Cu, Pb, Cd, Hg and Zn on Marine Molluscs, Cerithedia cingulata G., and Modiolus philippinarum H.
Authors: Ramakritinan, C M
Chandurvelan, Rathishri
Kumaraguru, A K
Keywords: Acute Toxicity
Snail
Bivalve
Heavy Metals
LC50
Issue Date: Apr-2012
Publisher: NISCAIR-CSIR, India
Abstract: Present study was intended to compare the acute static renewal toxicity tests on marine snail, Cerithidae cingulata and bivalve, Modiolus philippinarum that were performed with Cu, Cd, Pb, Zn and Hg. The 96 h LC50 values for C.cingulata were 0.521, 9.193, 15.507, 8.990 and 0.053 mg.l-1 and the 96 h LC50 values for M.philippinarum were 0.023, 0.221, 2.876, 2.337 and 0.007 mg.l-1 in respective metals. This study indicated that mercury was highly toxic to both C.cingulata and M.philippinarum. While lead was resistant metal to both marine molluscs tested. Order of increasing toxicity of metals to C.cingulata was Hg > Cu > Zn> Cd > Pd and to M.philippinarum was Hg > Cu > Cd > Zn > Pb. Safe level concentrations for all 5 metals were also calculated. The LC50 values of the present study may be useful in deriving marine water quality standards in the coastal waters of Gulf of Mannar.
Page(s): 141-145
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.41(2) [April 2012]

Files in This Item:

File Description SizeFormat
IJMS 41(2) 141-145.pdf60.8 kBAdobe PDFView/Open
 Current Page Visits: 552 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 603536 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in