Paper Title:
Reconstructing Lake History Changes from Zooplankton Subfossil in the Sediment of Wuliangsuhai Lake, China
  Abstract

The sediment samples of zooplankton subfossil at different depths were collected from a large shallow lake Wuliangsuhai Lake, China, in order to reconstruct lake past changes. The lake began to switch to eutrophication gradually in the middle 1980s, creating a sediment discontinuity layer (about 32.5 cm depth) that can be visually used to separate sediments derived from plankton and macrophyte. Inferences about the timing and trajectory of eutrophication were made using sediment zooplankton subfossil reconstruction. The changes in composition of the zooplankton fragments were rather gradual up the core, whereas the total numbers of fragments show the most marked changes from 32.5 cm to present. Changes in the composition of zooplankton fragments (in 32.5 cm depth) show a gradual shift from a “pelagic community” dominated by B. longirostris, reflecting clearwater conditions with high predation pressure, to a more “benthic” community, dominated by plant associated Chydorids. The results suggest that it is possible to reconstruct past eutrophication trends of the lake by using zooplankton subfossil, and that anthropogenic pollutant loading is the key factor in the eutrophication of Lake Wuliangsuhai.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
710-714
DOI
10.4028/www.scientific.net/AMR.183-185.710
Citation
Z. Y. Liu, Y. W. Li, Z. H. Jin, X. L. Wang, "Reconstructing Lake History Changes from Zooplankton Subfossil in the Sediment of Wuliangsuhai Lake, China", Advanced Materials Research, Vols. 183-185, pp. 710-714, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qing Guang Liu, Zong Guang Diao, Jing Yu Sun
Abstract:Water eutrophication has become one of the most serious problems in Chaohu Lake problem in recent years, and understanding the mechanisms of...
1433
Authors: Hong Mei Wang, Guo Zhu Mao, Shu Zhang, Hui Bin Du, Wei Dai, Li He Chai
Environmental Biotechnology
Abstract:The aquatic ecosystem of lake is a complex open systems, taking account of the shortcomings of available eutrophication models for water...
805
Authors: Tian Wen Zhang, Yue Peng Su, Shen Ma
Chapter 7: Simulation, Software development
Abstract:Marine aquaculture is an important growing worldwide industry. An ecosystem approach to study the effects of aquaculture on shrimp ponds was...
423
Authors: Jian Hang Qu, Xiao Bing He, Hai Feng Li, Huan Chen Zhai, Yuan Sen Hu
Chapter 6: Environmental Pollution
Abstract:Phosphorus is the key restraining factor for algal growth and water eutrophication, which is a global problem of environmental pollution....
1663
Authors: Lin Zheng, Wen Lin Cui, Wen Peng Song, Yan Zhang, Yuan Yuan
Chapter 1: Environmental Chemistry and Biology
Abstract:In this paper, the acute toxicity test was used to study the effects of different concentrations of suspended solids on the growth of...
65