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- Title
Mercury Distribution Along the Food Chain of a Wetland Ecosystem at Sanjiang Plain, Northeast China.
- Authors
Zhilong, Ma; Qiang, Wang; Zhongsheng, Zhang; Xuehong, Zhou
- Abstract
Concentrations of total mercury (T-Hg) and methylmercury (MeHg) in a wetland food chain were determined at Majuan Island of the Sanjiang Plain in China. Four tissues (muscle, liver, kidney and brain) of three waterbird species (great cormorant, grey heron and great egret), muscle tissues of fish (grass carp, crucian carp and longnose gudgeon), insects (predacious diving beetle), aquatic plants (ditch reed) and soil were analyzed. The mean concentrations of T-Hg were 0.392 ± 0.237 mg/kg for tissues of all juveniles, 1.999 ± 2.053 mg/kg for great cormorant adults, and 0.029 ± 0.019 mg/kg for fish muscle, respectively. While the relative contents of T-Hg of insects, plants and sediments were 0.012 ± 0.002, 0.006 ± 0.001 and 0.020 ± 0.002 mg/kg, respectively. Bioaccumulation of Hg along the wetland food chain may be able to show the current situation of Hg contamination in remote regions of East Asia.
- Subjects
CHINA; MERCURY &; the environment; METHYLMERCURY &; the environment; BIOACCUMULATION in fishes; BIOACCUMULATION in plants; WETLAND ecology; FOOD chains; MERCURY content of fish
- Publication
Bulletin of Environmental Contamination & Toxicology, 2017, Vol 98, Issue 2, p162
- ISSN
0007-4861
- Publication type
Article
- DOI
10.1007/s00128-016-2005-2