Record Details

Physico-chemical characterisation of the extrapallial fluid of a common <span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">tellinid <span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:HiddenHorzOCR;color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">bivalve <i>Macoma b</i><i><span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">irmanica </span></i><span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">(Philippi) in the mudflats of Sundarbans mangrove, Bay of Bengal</span></span></span>

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Physico-chemical characterisation of the extrapallial fluid of a common tellinid bivalve Macoma birmanica (Philippi) in the mudflats of Sundarbans mangrove, Bay of Bengal
 
Creator Saha, A
Mukhopadhyay, S K
Jana, T K
 
Description 158-164
The chemical
composition of the extrapallial fluid of Macoma birmanica was examined
in order to understand the process of calcification. Concentrations of
inorganic ions Na+, K+, Ca2+, cl-
and SO42- were found in higher proportion in the pallial
fluid than those in the ambient medium. Calcification from pallial fluid was
found to be related to the removal of proton from the fluid through the
excretion of NH3. The concentration of total positive charge is 14.1
% higher than that of negative charge, indicating the presence of non-difusible
negative ions. From EPR measurements, apparent complexation capacity of Mn in
the fluid was in the order of 0.37 × 10-5 M and forms 1:1
chelate with stability constant of 1.1 × 104 per mole. It was found
to be highly undersaturated with respect to the solubility of skeletal
aragonite in the pallial fluid and has

the capacity to keep high
concentration of calcium in solution through the formation of ion pair with HCO3-.
Precipitation of aragonite was initiated through the formation of Ca chelates.
 
Date 2014-01-07T12:14:37Z
2014-01-07T12:14:37Z
2000-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25336
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.29(2) [June 2000]