Record Details

Distribution of Mercury in different abiotic and biotic sectors of the Mandovi-Zuari estuary (Goa)

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Distribution of Mercury in different abiotic and biotic sectors of the Mandovi-Zuari estuary (Goa)
 
Creator Bhat, M.
Mesquita, A.
Ray, D.
Fernandes, B.
 
Subject Mandovi-Zuari
Dissolved
Particulate
Sediment
Biomagnification and bioaccumulation
 
Description 1384-1390
This
study highlights the behaviour of Mercury in the abiotic and biotic segments of
the Mandovi-Zuari estuarine system. Spatial, seasonal (Premonsoon and
Postmonsoon) and tidal, distribution of THg in dissolved/particulate
fractions, sediment concentrations were mapped of the river mouths, Mormugao
Port, inner and outer environs of this estuarine system. Observed seasonal
partition studies provided an insight into the removal of the metal into the
particulate fraction and subsequent deposition in sediments in the postmonsoon.
Bioconcentration factor provided a link in the Hg cycle between the abiotic and
biotic compartments of this ecosystem. Metal contaminations in different
tissues of biota representing different trophic levels were evaluated by
calculating the bioconcentration factor. Although biomagnification and
bioaccumulation was observed in the representative biota of commercial
importance, the observed total mercury levels are well within the safety limit 0.5 ppm set by WHO and 0.3 ppm set by UNEP for fish products
for human consumption, there by indicating no apparent mercury contamination.
 
Date 2016-06-27T04:57:16Z
2016-06-27T04:57:16Z
2014-07
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34458
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(7) [July 2014]