Journal
ENVIRONMENTAL POLLUTION
Volume 159, Issue 5, Pages 1297-1306Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.01.024
Keywords
Heavy metals; Isotopes analysis; Aquatic organisms; Trophic level; Yellow River Delta
Categories
Funding
- National Natural Science Foundation [U0833002, 41071330]
- Scientific Research Foundation of Beijing Normal University [2009SD-24]
Ask authors/readers for more resources
Nine heavy metals sampled from water, sediments, and aquatic organisms in the newly-formed wetlands of the Yellow River Delta (YRD) of China were analyzed to evaluate their concentrations and trophic transfer in food webs. The stable carbon (delta(13)C) and nitrogen (delta(15)N) isotopes were used to investigate trophic interactions. Results show that most of heavy metals detected in water and sediments are lower than that in Yangtze River Delta and Pearl River Delta. The longest food web is approximately 4 with the highest trophic level of birds. The difference of heavy metal concentrations between endangered Saunders's Gull and other three kinds of protected birds is not obvious. Cd, Zn, and Hg were identified to have an increase with the trophic level (TL), while As, Cr, Cu, Mn, Ni and Pb show an opposite trend, however, the biomagnification of the selected nine heavy metals in the food webs is not significant. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available