Journal
MARINE POLLUTION BULLETIN
Volume 87, Issue 1-2, Pages 345-351Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2014.07.050
Keywords
Mesozooplankton; Copepods; Trace metal; Bioaccumulation factor; Indian Sundarban
Funding
- National Science Council of Taiwan [NSC 102-2923-B-019-001-MY3]
- Department of Science and Technology (DST) & Confederation of Indian Industry (CII), New Delhi, India under India-Taiwan Programme in Science and Technology [GITA/DST/TWN/P-48/2013]
- Council of Scientific and Industrial Research (CSIR), New Delhi [09/028(0815)/2010-EMR-I]
- CSIR
- DST/CII
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Mesozooplankton (Body size 20-200 mu m) along with the surface water were collected from coastal regions of Sundarban, northeastern part of Bay of Bengal considering three seasons, namely premonsoon, monsoon and postmonsoon. Samples were analyzed for community structure and the dominant copepod species were further analyzed for trace metal concentration. In total, 50 copepods were identified (22 families and 43 genera). The dominant mesozooplankton species included 9 copepods and an epipelagic chaetognath, exhibited both spatial and seasonal variations. Metal concentration exhibited considerable inter-specific variations for the copepods and the mean concentrations were: Fe, 1350.2-51118.3 mu g/g; Al, 647.2-73019.1 mu g/g; Ni, 32.4-110.3 mu g/g; Mn, 122.8-1066.5 mu g/g; Pb, 0.04-97.5 mu g/g; Pb, 10.6-97.5 mu g/g; Cd, 4.2-21.6 mu g/g; Cu, 17.4-145.1 mu g/g; Zn, 225.7-1670.9 mu g/g; Cr, 21.7-194.3 mu g/g; Co, 1.32-111.1 mu g/g. Metal concentrations showed the following order: Sagitta bedoti > Coryceas danae > Oithona sp. > Eucalanus subcrassus > Labidocera euchaeta > Paracalanus parvus > Acartiella tortaniformis > Acartia spinicauda > Pseudocalanus serricaudatus. (C) 2014 Elsevier Ltd. All rights reserved.
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