Record Details

Trace Metal Concentrations in Zooplankton from the Eastern Arabian Sea and Western Bay of Bengal

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Trace Metal Concentrations in Zooplankton from the
Eastern Arabian Sea and Western Bay of Bengal
Not Available
 
Creator Rejomon,G
Balachandran,K K
Nair,M
Joseph,T
Dinesh Kumar,P K
Achuthankutty,C T
Nair,K K C
Pillai,N G K
 
Subject Arabian Sea
Bay of Bengal
zooplankton
trace metals
bioaccumulation
 
Description Not Available
Trace metal contents in zooplankton samples were estimated as a part of the Marine Research–Living Resource program at 24 stations
in the Bay of Bengal (November, 2002) and 29 stations in the Arabian Sea (September–October, 2003) during the Cruises 209 and 217
of the Fishery and Oceanographic Research Vessel Sagar Sampada. The average metal concentrations in the Bay of Bengal zooplankton
(Fe, 14,073 µg g−1; Co, 24.2 µg g−1; Ni, 29.5 µg g−1; Cu, 46.2 µg g−1; Zn, 2000 µg g−1; Cd, 18.7 µg g−1; and Pb, 6.55 µg g−1) were
found to be higher of comparable magnitudes than the Arabian Sea zooplankton (Fe, 1786 µg g−1; Co, 14.2 µg g−1; Ni, 18.6 µg g−1;
Cu, 21.5 µg g−1; Zn, 374 µg g−1; Cd, 16.5 µg g−1; and Pb, 4.0 µg g−1). The spatial variability of metal contents in zooplankton from
both basins indicates that it is markedly enriched in coastal samples than offshore samples. The metal enrichment in zooplankton from
the coastal areas of the eastern Arabian Sea occurs due to a combined effect of upwelling, riverine, and anthropogenic sources, whereas
the latter two are only dominating in the coastal Bay of Bengal zooplankton. A comparison of average trace metal concentrations
in the zooplankton from the Arabian Sea and Bay of Bengal showed that the enrichment of Fe, Zn, Cd, Ni, Cu, and Pb in the Bay of
Bengal zooplankton may be due to high bioaccumulation factor of these elements, whereas the slight Co enrichment may be due to the
bioavailability of this metal in the seawater.
Not Available
 
Date 2021-09-15T09:25:55Z
2021-09-15T09:25:55Z
2008
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62357
 
Language English
 
Relation Not Available