Impact of a large hydraulic barrage on the trace metals concentration in mesozooplankton in the Kochi backwaters, along the Southwest coast of India

被引：9
|
作者：
Arunpandi, N. [1 ]
Jyothibabu, R. [1 ]
Jagadeesan, L. [1 ,2 ]
Parthasarathi, S. [1 ]
Albin, K. J. [1 ]
Pandiyarajan, R. S. [1 ]
机构：
[1] CSIR Natl Inst Oceanog, Reg Ctr, Kochi 682018, Kerala, India
[2] CSIR Natl Inst Oceanog, Reg Ctr, Visakhapatnam 530017, Andhra Pradesh, India
来源：
MARINE POLLUTION BULLETIN | 2020年 / 160卷
关键词：
Trace metals; Mesozooplankton; Thannermukkom barrage; Kochi backwaters; India; COCHIN BACKWATERS; WESTERN BAY; ESTUARY; PHYTOPLANKTON; ZOOPLANKTON; SEA; WATERS; DYNAMICS; PLANKTON; POLLUTION;
D O I：
10.1016/j.marpolbul.2020.111568
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study delineates the impact of a man-made hydrological barrage [Thannermukkom barrage (TB)] on the concentration of selected trace metals (Fe, Zn, Cu, Co, Cr, Mn, Ni, Pb) in mesozooplankton from the Kochi backwaters (KBW). The overall results point out that during Pre-Southwest Monsoon (PRM), the concentration of trace metals in mesozooplankton was high in the upstream due to the closure of the barrage, which essentially causes stagnancy of the waters. Trace metal concentrations in the downstream and upstream regions of KBW were found to be lower during PostSouthwest Monsoon (PSWM) compared to the rest of the seasons. In general, trace metals in mesozooplankton from the KBW showed the following order of concentration: Fe > Mn > Zn > Ni > Cu > Cr > Co > Pb. A comparison with earlier data across the globe showed that trace metal concentration in mesoplankton in the KBW is lower than the values reported from other parts of the world.
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页数：11
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