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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]
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